A crash column suitable for urban road isolation guardrails

Abstract

The application relates to the technical field of urban road municipal guardrails, in particular to a crash column suitable for urban road isolation guardrails, which comprises a crash column body, the crash column body comprises sequentially connected upper end part, middle part and lower end part, the upper end part comprises an upper end column and an upper buffer zone arranged below the upper end column, two groups of compression springs are arranged in the upper buffer zone, the two groups of compression springs are arranged in an upper and lower interval mode, and a partition plate is arranged between the two groups of compression springs; the lower end part comprises a base and a lower end column arranged above the base, and a permanent magnetic suction disc is arranged in the base; the middle part comprises an outer shell, an inner sleeve and an outer sleeve arranged in the outer shell, the inner sleeve and the outer sleeve are sleeved, the top of the inner sleeve is connected with the bottom of the upper buffer zone of the upper end part, and the bottom of the outer sleeve is connected with the top of the lower end column of the lower end part. The application can reduce the damage to the vehicle and protect the life safety of the driver by arranging the buffer device on the crash column.

Description

Technical Field

[0001] This invention relates to the field of urban road municipal guardrail technology, and in particular to a crash post suitable for urban road isolation guardrails. Background Technology

[0002] In recent years, with the increasing number of vehicles in cities and the growing congestion of urban roads, municipal guardrails are often used in cities to guide traffic. Although the speed of vehicles is significantly reduced due to restrictions and speed limits in cities, there are still certain blind spots at intersections, which can still cause vehicles to crash into the end guardrails and cause traffic accidents.

[0003] In addition, the guardrails on existing urban roads generally only have warning posts at the ends and no corresponding buffer devices, which can easily cause damage to vehicles and thus affect the safety of drivers. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a crash barrier suitable for urban road guardrails. By setting a buffer device on the crash barrier, damage to vehicles can be reduced and the safety of drivers can be protected.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A crash barrier post suitable for urban road guardrails includes a crash barrier post body, wherein the crash barrier post body includes an upper end, a middle part, and a lower end connected in sequence:

[0007] The upper end includes an upper end post and an upper buffer zone located below the upper end post. The upper buffer zone is provided with two sets of compression springs, which are arranged vertically at intervals, and a partition is provided between the two sets of compression springs.

[0008] The lower end includes a base and a lower end column located above the base, and a permanent magnet chuck is provided inside the base.

[0009] Preferably, the intermediate part includes a shell, an inner sleeve and an outer sleeve disposed within the shell, the inner sleeve and the outer sleeve being sleeved together, the top of the inner sleeve being connected to the bottom of the upper buffer zone at the upper end, and the bottom of the outer sleeve being connected to the top of the lower post at the lower end.

[0010] Preferably, the intermediate portion further includes a vertical connecting rod assembly disposed within the outer casing. The vertical connecting rod assembly is located on the outer side of the outer sleeve. The vertical connecting rod assembly includes a first vertical connecting rod and a second vertical connecting rod disposed on one side of the outer sleeve, and a third vertical connecting rod and a fourth vertical connecting rod disposed on the other side of the outer sleeve. A first spring is provided between the first vertical connecting rod and the second vertical connecting rod, and a second spring is provided between the third vertical connecting rod and the fourth vertical connecting rod. One end of the first vertical connecting rod is hinged to the top of the inner sleeve, and the other end of the first vertical connecting rod is connected to one end of the second vertical connecting rod via a U-shaped fastener. The other end of the second vertical connecting rod is hinged to the lower end post. One end of the third vertical connecting rod is hinged to the top of the inner sleeve, and the other end of the third vertical connecting rod is connected to one end of the fourth vertical connecting rod via a U-shaped fastener. The other end of the fourth vertical connecting rod is hinged to the lower end post, and the U-shaped fastener is connected to the outer casing.

[0011] Preferably, the inner sleeve is provided with a connecting rod, the bottom of the connecting rod is connected to a piston, and a tension spring is provided below the piston.

[0012] Preferably, four sets of pulley assemblies are provided between the inner wall of the outer sleeve and the outer wall of the inner sleeve, and the four sets of pulley assemblies are distributed in a circumferential shape at equal intervals; each set of pulley assemblies includes a pulley, the pulley is connected to a fixing block by a fixing pin, and the fixing block is connected to the inner wall of the outer sleeve.

[0013] Preferably, the middle part further includes a limiter assembly disposed within the housing. The limiter assembly includes a first lateral limiter and a second lateral limiter disposed on the left and right sides of the upper buffer zone, and a third lateral limiter and a fourth lateral limiter disposed on the left and right sides of the lower end post. The first lateral limiter and the second lateral limiter are symmetrically arranged on the left and right, and the third lateral limiter and the fourth lateral limiter are symmetrically arranged on the left and right.

[0014] Preferably, one end of the first and second lateral limiters is connected to the upper buffer, and the other end of the first and second lateral limiters is connected to the outer shell; one end of the third and fourth lateral limiters is connected to the lower end post, and the other end of the third and fourth lateral limiters is connected to the outer shell.

[0015] Preferably, there are three lateral limiters: the first lateral limiter, the second lateral limiter, the third lateral limiter, and the fourth lateral limiter, which are distributed vertically at intervals.

[0016] Preferably, a warning light is provided at the top of the upper column.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention reduces the impact force of a collision with a vehicle and improves the protection of the driver by adding an internal buffer device inside the end pillar.

[0019] 2. This invention can reduce the damage caused by the impact of a car to a certain extent, thus ensuring the safety of the driver.

[0020] 3. This invention is reusable and easy to install, saving manpower and financial resources and reducing costs for construction to a certain extent. Attached Figure Description

[0021] Figure 1 This is a plan view of the invention on an urban road surface;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a top view of the present invention;

[0024] Figure 4 for Figure 2 Enlarged diagram of section A in the middle;

[0025] Figure 5 This is a top view of the middle part of the present invention;

[0026] Figure 6 This is a perspective view of the middle part of the present invention;

[0027] Figure 7 This is a cross-sectional view of the inner sleeve and outer sleeve of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the first lateral limiter of the present invention;

[0029] Figure 9 This is a state diagram of the collision during the present invention;

[0030] Figure 10 This is a state diagram after the collision ends according to the present invention. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the scope of protection of the present invention. The embodiments described in this invention are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-10A crash barrier post suitable for urban road guardrails includes a crash barrier post body, wherein the crash barrier post body includes an upper end, a middle part, and a lower end connected in sequence:

[0033] Reference Figure 2 The upper end includes an upper column 9 and an upper buffer zone located below the upper column 9. The upper buffer zone is provided with two sets of compression springs 2, which are arranged vertically at intervals, and a partition 3 is provided between the two sets of compression springs 2.

[0034] The lower end includes a base 11 and a lower end post 10 disposed above the base 11. A permanent magnet chuck 12 is provided inside the base 11.

[0035] In this embodiment, during actual installation, the device can be placed directly on the pre-embedded steel plate and fixed by opening the permanent magnet chuck. The installation is convenient and easy to replace.

[0036] Specifically, refer to Figure 2 , Figure 5 , Figure 6 The middle part includes a shell 5, an inner sleeve 6 and an outer sleeve 7 disposed inside the shell 5. The inner sleeve 6 and the outer sleeve 7 are sleeved together. The top of the inner sleeve 6 is connected to the bottom of the upper buffer zone at the upper end, and the bottom of the outer sleeve 7 is connected to the top of the lower end post 10 at the lower end.

[0037] Specifically, refer to Figure 2 The intermediate part also includes a vertical connecting rod assembly 8 disposed within the outer casing 5. The vertical connecting rod assembly 8 is located on the outside of the outer casing 7. The vertical connecting rod assembly 8 includes a first vertical connecting rod 801 and a second vertical connecting rod 802 disposed on one side of the outer casing 7, and a third vertical connecting rod 803 and a fourth vertical connecting rod 804 disposed on the other side of the outer casing 7. A first spring 14 is provided between the first vertical connecting rod 801 and the second vertical connecting rod 802, and a second spring 15 is provided between the third vertical connecting rod 803 and the fourth vertical connecting rod 804. One end of rod 801 is hinged to the top of inner sleeve 6. The other end of the first vertical connecting rod 801 is connected to one end of the second vertical connecting rod 802 through a U-shaped fastener 13. The other end of the second vertical connecting rod 802 is hinged to the lower end post 10. One end of the third vertical connecting rod 803 is hinged to the top of inner sleeve 6. The other end of the third vertical connecting rod 803 is connected to one end of the fourth vertical connecting rod 804 through a U-shaped fastener 13. The other end of the fourth vertical connecting rod 804 is hinged to the lower end post 10. The U-shaped fastener 13 is connected to the outer shell 5.

[0038] In this embodiment, the vertical link assembly 8, which is composed of the first vertical link 801, the second vertical link 802, the third vertical link 803, and the fourth vertical link 804 hinged together, can rotate relative to each other on the vertical axis. The hinge joints of the first vertical link 801, the second vertical link 802, the third vertical link 803, and the fourth vertical link 804 are engaged with the slots of the U-shaped fastener 13, and the U-shaped fastener 13 is connected to the outer shell 5.

[0039] Specifically, refer to Figure 7 The inner sleeve 6 is provided with a connecting rod 602, the bottom of the connecting rod 602 is connected to a piston 601, and a tension spring 603 is provided below the piston 601.

[0040] Specifically, refer to Figure 7 Four sets of pulley assemblies are provided between the inner wall of the outer sleeve 7 and the outer wall of the inner sleeve 6. The four sets of pulley assemblies are distributed in a circumferential shape at equal intervals. Each set of pulley assemblies includes a pulley 701. The pulley 701 is connected to a fixing block 702 through a fixing pin 703. The fixing block 702 is connected to the inner wall of the outer sleeve 7.

[0041] In this embodiment, the inner sleeve 6 and the outer sleeve 7 are connected by a pulley 701 for extension and retraction. When the impact force of the car drives the inner sleeve 6 and the outer sleeve 7 to move through the vertical linkage assembly 8, the pulley 701 on the inner side of the outer sleeve 7 can slide up and down along the outer wall of the inner sleeve 6. The displacement generated by its up and down sliding and the tension spring 603 generate tension and compression deformation to absorb energy, thereby reducing the damage to the car.

[0042] Specifically, refer to Figure 2 The middle part also includes a limiter assembly 4 disposed within the outer casing 5. The limiter assembly 4 includes a first lateral limiter 401 and a second lateral limiter 402 disposed on the left and right sides of the upper buffer zone, and a third lateral limiter 403 and a fourth lateral limiter 404 disposed on the left and right sides of the lower end post 10. The first lateral limiter 401 and the second lateral limiter 402 are symmetrically arranged on the left and right, and the third lateral limiter 403 and the fourth lateral limiter 404 are symmetrically arranged on the left and right.

[0043] Specifically, refer to Figure 2 One end of the first lateral limiter 401 and the second lateral limiter 402 are both connected to the upper buffer, and the other end of the first lateral limiter 401 and the second lateral limiter 402 are both connected to the outer shell 5; one end of the third lateral limiter 403 and the fourth lateral limiter 404 are both connected to the lower end post 10, and the other end of the third lateral limiter 403 and the fourth lateral limiter 404 are both connected to the outer shell 5.

[0044] There are three of them: the first lateral limiter 401, the second lateral limiter 402, the third lateral limiter 403, and the fourth lateral limiter 404, which are distributed vertically at intervals.

[0045] In this embodiment, multiple first lateral limiters 401, second lateral limiters 402, third lateral limiters 403, and fourth lateral limiters 404 are used to buffer the impact force on the vehicle and ensure the safety of the driver.

[0046] The top of the upper post 9 is equipped with a warning light 1. When the post is hit by a car, the warning light 1 can issue an alarm.

[0047] Working principle of the invention: Refer to Figures 9-10 When a car collides with a crash barrier from any direction, the outer shell 5 deforms first, triggering the compression and energy absorption of the first-stage buffer-limiter assembly 4, consisting of the first lateral limiter 401, the second lateral limiter 402, the third lateral limiter 403, and the fourth lateral limiter 404. Simultaneously, the outer shell 5 causes the U-shaped fastener 13 to move horizontally. Initially, the connecting rod hinge is located in the inner slot 1301 of the U-shaped fastener 13, a distance from the outer slot 1302, so it does not initially cause the vertical connecting rod assembly 8 to move. Once the U-shaped fastener 13 completes its horizontal movement, its outer slot 1301 directly pushes the vertical connecting rod assembly 8. As the vertical connecting rod assembly 8 expands upwards, it causes the stretching of the first vertical spring 14 and the second spring 15, the expansion of the inner sleeve 6, and the compression of the two sets of compression springs 2 at the upper end of the inner sleeve 6. These collectively constitute the second-stage buffer energy absorption. Therefore, the two buffers can absorb the impact force to a great extent, achieving the effect of cushioning, reducing damage to the car and protecting the personal safety of the driver.

[0048] In summary, by installing a buffer device on the crash barrier, this invention can reduce damage to vehicles and protect the driver's life.

[0049] The descriptions and practices disclosed in this invention are readily apparent and understandable to those skilled in the art, and various modifications and refinements can be made without departing from the principles of this invention. Therefore, any modifications or improvements made without departing from the spirit of this invention should also be considered within the scope of protection of this invention.

Claims

1. A crash barrier post suitable for urban road guardrails, comprising a crash barrier post body, characterized in that, The anti-collision post body includes an upper end, a middle end, and a lower end connected in sequence: The upper end includes an upper column (9) and an upper buffer zone located below the upper column (9). The upper buffer zone is provided with two sets of compression springs (2), which are spaced apart vertically, and a partition (3) is provided between the two sets of compression springs (2). The lower end includes a base (11) and a lower end post (10) located above the base (11). A permanent magnet chuck (12) is provided inside the base (11). The middle part includes a shell (5), an inner sleeve (6) and an outer sleeve (7) disposed inside the shell (5). The inner sleeve (6) and the outer sleeve (7) are sleeved together. The top of the inner sleeve (6) is connected to the bottom of the upper buffer zone at the upper end, and the bottom of the outer sleeve (7) is connected to the top of the lower end post (10) at the lower end. The intermediate part also includes a vertical connecting rod assembly (8) disposed within the outer casing (5). The vertical connecting rod assembly (8) is disposed on the outside of the outer casing (7). The vertical connecting rod assembly (8) includes a first vertical connecting rod (801) and a second vertical connecting rod (802) disposed on one side of the outer casing (7), and a third vertical connecting rod (803) and a fourth vertical connecting rod (804) disposed on the other side of the outer casing (7). A first spring (14) is provided between the first vertical connecting rod (801) and the second vertical connecting rod (802), and a second spring (15) is provided between the third vertical connecting rod (803) and the fourth vertical connecting rod (804). One end of the rod (801) is hinged to the top of the inner sleeve (6), and the other end of the first vertical connecting rod (801) is connected to one end of the second vertical connecting rod (802) through a U-shaped fastener (13). The other end of the second vertical connecting rod (802) is hinged to the lower end post (10). One end of the third vertical connecting rod (803) is hinged to the top of the inner sleeve (6), and the other end of the third vertical connecting rod (803) is connected to one end of the fourth vertical connecting rod (804) through a U-shaped fastener (13). The other end of the fourth vertical connecting rod (804) is hinged to the lower end post (10). The U-shaped fastener (13) is connected to the outer shell (5). The middle part also includes a limiter assembly (4) disposed in the outer shell (5). The limiter assembly (4) includes a first lateral limiter (401) and a second lateral limiter (402) disposed on the left and right sides of the upper buffer zone, and a third lateral limiter (403) and a fourth lateral limiter (404) disposed on the left and right sides of the lower end post (10). The first lateral limiter (401) and the second lateral limiter (402) are symmetrically arranged on the left and right, and the third lateral limiter (403) and the fourth lateral limiter (404) are symmetrically arranged on the left and right. When the car collides with the crash bar in any direction, the outer shell (5) is first deformed, which triggers the first lateral limiter (401), the second lateral limiter (402), the third lateral limiter (403) and the fourth lateral limiter (404) of the limiter assembly (4) to compress and absorb energy. At this time, the outer shell (5) drives the U-shaped fastener (13) to move horizontally. Since the connecting rod is initially located in the inner slot (1301) in the middle of the U-shaped fastener (13), which is a distance away from the outer slot (1302), it will not drive the vertical connecting rod assembly (8) to move at first. When the U-shaped fastener (13) finishes its horizontal movement, its outer slot (1301) directly pushes the vertical connecting rod assembly (8) to move.

2. A crash barrier post suitable for urban road guardrails according to claim 1, characterized in that, The inner sleeve (6) is provided with a connecting rod (602), and a piston (601) is connected to the bottom of the connecting rod (602). A tension spring (603) is provided below the piston (601).

3. A crash barrier post suitable for urban road guardrails according to claim 2, characterized in that, Four sets of pulley assemblies are provided between the inner wall of the outer sleeve (7) and the outer wall of the inner sleeve (6). The four sets of pulley assemblies are distributed in a circumferential shape at equal intervals. Each set of pulley assemblies includes a pulley (701). The pulley (701) is connected to a fixing block (702) through a fixing pin (703). The fixing block (702) is connected to the inner wall of the outer sleeve (7).

4. A crash barrier post suitable for urban road guardrails according to claim 1, characterized in that, One end of the first lateral limiter (401) and the second lateral limiter (402) are both connected to the upper buffer, and the other end of the first lateral limiter (401) and the second lateral limiter (402) are both connected to the outer shell (5); one end of the third lateral limiter (403) and the fourth lateral limiter (404) are both connected to the lower end post (10), and the other end of the third lateral limiter (403) and the fourth lateral limiter (404) are both connected to the outer shell (5).

5. A crash barrier post suitable for urban road guardrails according to claim 1, characterized in that, There are three of each of the first lateral limiters (401), the second lateral limiter (402), the third lateral limiter (403), and the fourth lateral limiter (404), which are distributed vertically at intervals.

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