Road middle guardrail for traffic engineering

Abstract

The invention belongs to the technical field of traffic engineering, and discloses a road middle guardrail for traffic engineering, which comprises a cross beam and a plurality of longitudinal beams, and further comprises reflective beams arranged between the longitudinal beams in parallel in a staggered manner, reset rods mounted at two ends of the cross beam, and a lifting beam, the lifting beam is fixedly installed at the top end of the reset rod, the two ends of the lifting beam are in sliding connection with middle stand columns of the guardrails, the reflective beam comprises a light-transmitting cover and a rotating column rotationally arranged in the light-transmitting cover, a spiral groove is formed in the top end of the rotating column, and an ejector rod is clamped in the spiral groove in a threaded mode; the ejector rod is elastically connected with the lifting shaft, the lifting shaft is fixedly connected to the bottom of the lifting beam, and when the lifting beam is pressed downwards by external force, the ejector rod is pushed downwards to be spirally coupled with the spiral groove, so that the rotating column rotates. When a pedestrian climbs over the middle guardrail, the habit that the pedestrian is supported on the lifting beam is utilized, so that the lifting beam descends slightly, the rotating column with the light reflecting block is driven to rotate, and a passing driver is prompted to brake or avoid in time.

Description

Technical Field

[0001] The invention belongs to the technical field of traffic engineering, in particular to a road middle guardrail for traffic engineering. Background Art

[0002] Traffic road guardrails are isolation devices mainly used on urban main roads. They are mainly used to prevent vehicles from making illegal U-turns and pedestrians from crossing the road without going through zebra crossings on main roads with heavy traffic. However, in cities, it is still common for pedestrians to cross the road over the guardrails. Especially at night, in rainy or foggy days with relatively poor visibility, this phenomenon of climbing over the guardrails is more difficult to detect than usual. Therefore, there have been cases where pedestrians climbed over the guardrails at night and motor vehicle drivers did not react in time and hit pedestrians.

[0003] The existing road guardrails lack warning measures for pedestrians climbing over them, and most of them can only serve as road isolation. There are also some guardrails that can sound and light alarms when pedestrians climb over them, but the cost is relatively high, the equipment maintenance is complicated, and the failure rate in outdoor environments must also be taken into consideration, so it is relatively difficult to promote them.

[0004] The present application proposes a road middle guardrail for traffic engineering to overcome the defects of the above-mentioned prior art. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a road middle guardrail for traffic engineering.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a road intermediate guardrail for traffic engineering, comprising a crossbeam and a plurality of longitudinal beams, and further comprising: Reflective beams are arranged in parallel and staggered between the longitudinal beams. The reset rod is installed at both ends of the beam. The lifting beam is fixedly mounted on the top of the reset rod and the two ends of the lifting beam are slidably connected to the middle column of the guardrail. The reflective beam includes a light-transmitting cover and a rotating column rotatably arranged inside the light-transmitting cover, a spiral groove is arranged on the top of the rotating column, a push rod is threadedly engaged with the inner thread of the spiral groove, the push rod is elastically connected to the lifting shaft, and the lifting shaft is fixed to the bottom of the lifting beam, when the lifting beam is pressed downward by an external force, the push rod is pushed downward to couple with the spiral groove to cause the rotating column to rotate, and a reflective block is arranged on the rotating column.

[0007] Preferably, the reset rod comprises a guide rod and a fixed sleeve which are sleeved on each other, and the fixed sleeve is fixedly connected to the crossbeam, and the guide rod is fixedly connected to the lifting beam. The reset rod also includes a spring 3 which is sleeved inside the fixed sleeve for elastically supporting the fixed sleeve upward, a rubber ring which is sleeved on the circumference of the guide rod for forming an interference fit with the inner wall of the fixed sleeve, and a valve core which is arranged at the bottom of the fixed sleeve for connecting the inner cavity of the fixed sleeve with the external environment.

[0008] Preferably, the valve core is composed of four fan-shaped one-way flaps, and when not in conduction, an air hole is opened in the middle of the four fan-shaped one-way flaps to always connect the inner cavity of the fixed sleeve with the external environment; The one-way flap of the valve core can only be bent toward the external environment.

[0009] Preferably, a storage cavity is provided at the bottom of the lifting shaft, and the top end of the push rod is movably sleeved in the storage cavity and can slide. The outer circumference of the push rod is sleeved with a spring that is elastically supported between the bottom end of the lifting shaft and the push rod, and the bottom end of the push rod is provided with two protrusions that engage in the spiral groove.

[0010] Preferably, a plurality of shading strips are evenly spaced on the light-transmitting cover along the vertical direction, and a plurality of reflective blocks are evenly spaced on the rotating column, and the distance between the reflective blocks is equal to the distance between two adjacent shading strips. The reflective block is level with the shading strip in an initial state where the lifting beam is not subjected to pressure.

[0011] Preferably, the reflective beam further comprises an elastic column arranged at the bottom end of the rotating column, the elastic column is composed of a sliding sleeve and a guide column which are sleeved on each other, and the sliding sleeve and the guide column are kept vertically limited in the circumferential direction, and a second spring which is elastically supported between the guide column and the rotating column is arranged inside the sliding sleeve; The bottom end of the elastic column is rotatably connected to the bottom of the light-transmitting cover through a bearing.

[0012] Preferably, the rotating columns are two arc-shaped columns which are symmetrically arranged and coaxial with the lifting shaft, the arc of the arc-shaped columns is a quarter of a circle, and the reflective block is fixedly mounted on the outer peripheral surface of the arc-shaped columns.

[0013] Preferably, an isolation cover is provided between the cross beam and the lifting beam, and the isolation cover covers the part of the lifting shaft located between the cross beam and the lifting beam to isolate it from the external environment.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the above technical solution, when a pedestrian climbs over the middle guardrail, he or she uses his or her habit of supporting on the lifting beam to make the lifting beam drop slightly, so that the lifting beam drops and drives the lifting shaft and the top rod to cooperate with the spiral groove for spiral coupling to rotate the rotating column. The rotating column is provided with a reflective block, which reflects the light of passing motor vehicles during the rotation process, so that the motor vehicle driver can see a very conspicuous warning reflection, such as a bright and eye-catching red color, which plays an early warning effect, so that the passing drivers can brake or avoid the vehicle in time.

[0015] When the lifting beam is pressed downward by force, the spring 1 is compressed. The lifting beam can be quickly lowered with the force, and the rotation of the top rod on the rotating column can be delayed. The spring 1 can first store part of the energy, and then release its potential energy to slowly make the protrusion act on the spiral groove, so that the rotating column is driven to rotate. This can extend the warning time.

[0016] In the initial state, the reflective block is set horizontally with the shading strip, so that the shading strip can completely cover the reflective block and it cannot reflect external light. The reflective block also presents a uniform vertical array design. In the initial state, each reflective block corresponds to each shading strip one by one, so it can have a good blocking effect. The places where there is no shading strip on the light-transmitting cover are transparent and light can penetrate. When the reflective block drops to the blank part between two adjacent shading strips, external light can penetrate and shine on it and reflect to serve as a warning. Therefore, under normal conditions, the reflected light will not interfere with the driver's judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front schematic diagram of the guardrail of the present invention; Figure 3 For the present invention Figure 1 A magnified schematic diagram of part A; Figure 4 This is a schematic diagram of the disassembly of the structure of the reset rod of the present invention; Figure 5 It is a partial structural cross-sectional view of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of part B; Figure 7 For the present invention Figure 5 An enlarged schematic diagram of part C of FIG. Figure 8 The figure is a schematic diagram of the interior of the reflective beam after the light-transmitting cover of the present invention is disassembled.

[0018] In the figure: 100, horizontal beam; 200, longitudinal beam; 300, reflective beam; 301, translucent cover; 3011, shading strip; 302, lifting shaft; 3021, storage chamber; 303, rotating column; 3031, reflective block; 3032, spiral groove; 304, push rod; 3041, bump; 305, spring one; 306, elastic column; 307, spring two; 308, bearing; 400, reset rod; 401, fixing sleeve; 402, guide rod; 403, spring three; 404, rubber ring; 405, valve core; 4051, air hole; 500, isolation cover; 600, lifting beam. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, the present invention provides a road intermediate guardrail for traffic engineering, including a crossbeam 100 and a plurality of longitudinal beams 200, and also includes: The reflective beams 300 are arranged in parallel and staggered between the longitudinal beams 200. The reset rod 400 is installed at both ends of the beam 100. The lifting beam 600 is fixedly mounted on the top of the reset rod 400 and the two ends of the lifting beam 600 are slidably connected to the middle column of the guardrail. The reflective beam 300 includes a light-transmitting cover 301 and a rotating column 303 rotatably arranged inside the light-transmitting cover 301. A spiral groove 3032 is arranged at the top of the rotating column 303. A top rod 304 is threadedly engaged with the inner thread of the spiral groove 3032. The top rod 304 is elastically connected to the lifting shaft 302, and the lifting shaft 302 is fixed to the bottom of the lifting beam 600. When the lifting beam 600 is pressed downward by an external force, the top rod 304 is pushed downward to be spirally coupled with the spiral groove 3032, causing the rotating column 303 to rotate. A reflective block 3031 is arranged on the rotating column 303.

[0021] The lifting beam 600 cooperates with the reset rod 400 to form a lifting configuration. When a pedestrian tries to climb over the guardrail, he or she supports the lifting beam 600 with his or her hands and applies the weight of his or her body to it, thereby causing the reset rod 400 to be compressed and the lifting shaft 302 to be lowered together. The lifting shaft 302 then drives the top rod 304 to descend, thereby causing the rotating column 303 to rotate through the spiral coupling. The rotating column 303 is provided with a reflective block 3031, so the reflective block 3031 can reflect the light emitted from the oncoming vehicle during the rotation process and reflect it back, which helps to warn the motor vehicle at night when the visibility is relatively low, indicating that there is a pedestrian climbing over here.

[0022] like Figure 4 As shown, the reset rod 400 includes a fixing sleeve 401 and a guide rod 402 which are sleeved with each other, and the fixing sleeve 401 is fixedly connected to the cross beam 100, and the guide rod 402 is fixedly connected to the lifting beam 600. The reset rod 400 also includes a spring 403 sleeved inside the fixed sleeve 401 for elastically supporting the fixed sleeve 401 upward, a rubber ring 404 sleeved on the circumference of the guide rod 402 for forming an interference fit with the inner wall of the fixed sleeve 401, and a valve core 405 arranged at the bottom of the fixed sleeve 401 for connecting the inner cavity of the fixed sleeve 401 and the external environment.

[0023] The main function of the reset rod 400 is to drive the lifting beam 600 and the reflective beam 300 to return to the initial state after being freed from external pressure through its own elastic recovery performance. The function of the rubber ring 404 is to control the speed of reset.

[0024] like Figure 3 As shown, the valve core 405 is composed of four fan-shaped one-way flaps, and when the four fan-shaped one-way flaps are not conducting, a pore 4051 is opened in the middle to always connect the inner cavity of the fixed sleeve 401 with the external environment; The one-way flap of the valve core 405 can only be bent toward the external environment.

[0025] A fan-shaped notch is provided at the tip of each one-way flap, and the notches of the four one-way flaps are combined to form a circular hole, which is used to connect the inner cavity of the fixed sleeve 401 to the external environment. When the pressure on the lifting beam 600 disappears, the spring three 403 will support the guide rod 402 to move upward, but the upward process is relatively slow. Since the one-way conduction direction of the valve core 405 is from the inner cavity of the fixed sleeve 401 to the outside, the one-way flaps of the valve core 405 are in a closed state at this time, but the small hole formed by the notch on the one-way flap can normally take in a small flow of air inward. Therefore, the guide rod 402 can still rise, but the rising process is relatively slow. In this way, the lifting beam 600 can rise slowly, providing a buffer. And the lifting shaft 302 and other components in the reflective beam 300 below are reset slowly, extending the working time of the device.

[0026] like Figure 6 As shown, a receiving cavity 3021 is provided at the bottom of the lifting shaft 302, and the top end of the push rod 304 is movably sleeved in the receiving cavity 3021 and can slide. A spring 305 is sleeved on the outer circumference of the push rod 304 to elastically support the bottom end of the lifting shaft 302 and the push rod 304, and two protrusions 3041 are provided at the bottom end of the push rod 304 to engage in the spiral groove 3032.

[0027] When the lifting beam 600 is pressed downward by force, the lifting shaft 302 moves downward relative to the push rod 304, and a relative displacement difference is generated between the two, so that the top end of the push rod 304 sinks into the interior of the storage cavity 3021, and the spring 1 305 is compressed at this time. The purpose of this design is to allow the lifting beam 600 to quickly descend with the force, and to delay the rotation of the push rod 304 on the rotating column 303. The spring 1 305 stores part of the energy first, and then releases it to slowly make the protrusion 3041 act on the spiral groove 3032, so that the rotating column 303 is driven to rotate. If the above structure is not set, the moment the pedestrian presses the weight, the protrusion 3041 will directly act on the spiral groove 3032, which may cause excessive force and damage, or the rotating column 303 will rotate too fast and the time is too short to play an effective warning effect.

[0028] like Figure 5 and 6 As shown, a plurality of shading strips 3011 are equidistantly arranged on the light-transmitting cover 301 along the vertical direction, and a plurality of reflective blocks 3031 are also equidistantly arranged on the rotating column 303, and the distance between them is equal to the distance between two adjacent shading strips 3011. The reflective block 3031 is level with the shading strip 3011 in the initial state where the lifting beam 600 is not subjected to pressure.

[0029] The main purpose of such design is to prevent the reflective block 3031 inside the lifting beam 600 from being seen by the external environment when the lifting beam 600 is not under pressure, thereby affecting the judgment of traffic personnel. In the initial state, the reflective block 3031 is horizontal with the shading strip 3011, so that the shading strip 3011 can completely cover the reflective block 3031, and it cannot reflect external light. And the reflective block 3031 also presents a uniform vertical array design. In the initial state, each reflective block 3031 corresponds to each shading strip 3011 one by one, so it can play a good blocking effect. The place where there is no shading strip 3011 on the transparent cover 301 is transparent, and light can penetrate. When the reflective block 3031 drops to the blank part between two adjacent shading strips 3011, external light can penetrate and shine on it and reflect to play a warning role.

[0030] like Figure 7 As shown, the reflective beam 300 further includes an elastic column 306 disposed at the bottom end of the rotating column 303, the elastic column 306 is composed of a sliding sleeve and a guide column which are mutually sleeved, and the sliding sleeve and the guide column are kept vertically limited in the circumferential direction, and a spring 2 307 elastically supported between the guide column and the rotating column 303 is provided inside the sliding sleeve; The bottom end of the elastic column 306 is rotatably connected to the bottom of the light-transmitting cover 301 through a bearing 308 .

[0031] When the upper lifting beam 600 is supported downward by pedestrians, it will press the lifting shaft 302 downward synchronously, and the lifting shaft 302 presses the push rod 304 downward to go deep into the spiral groove 3032 through the spring 1 305. The downward force first overcomes the compression of the spring 2 307, so the overall height of the rotating column 303 will first drop, causing the height of the reflective block 3031 and the light shielding strip 3011 to be misaligned, so that the reflective block 3031 can be observed by the outside world through the non-light shielding strip 3011 on the light-transmitting cover 301. In this process, the spring 1 305 and the spring 2 307 will first shrink to the maximum extent, and then the push rod 304 will continue to go deep into the spiral groove 3032 through the release of the elastic force of the spring 1 305, and the protrusion 3041 on it will slide along the spiral track of the spiral groove 3032. The top rod 304 is retracted into the storage cavity 3021 and the top rod 304 and the lifting shaft 302 are circumferentially limited, so that when the spiral groove 3032 and the protrusion 3041 slip, the rotating column 303 will rotate synchronously, so that the reflective block 3031 has a light reflection effect that can be observed by the outside world.

[0032] like Figure 8 As shown, the rotating column 303 is two arc-shaped columns which are symmetrically arranged and coaxial with the lifting shaft 302. The arc of the arc-shaped column is a quarter of a circle, and the reflective block 3031 is fixedly mounted on the outer circumference of the arc-shaped column.

[0033] The two arc-shaped columns are symmetrically arranged with two vertical gaps between them. Therefore, when the rotating column 303 rotates, the light reflected by it does not present a continuous reflection, but an intermittent flashing reflection. This is more conducive to the driver's observation and has a more effective warning effect, shortening the reaction time. And it can still play a prompting role when the rotating column 303 is reversed.

[0034] like Figure 1 , 2 As shown in FIG. 5 , an isolation cover 500 is disposed between the cross beam 100 and the lifting beam 600 , and the isolation cover 500 covers the portion of the lifting shaft 302 located between the cross beam 100 and the lifting beam 600 to isolate it from the external environment.

[0035] The isolation cover 500 is a square steel structure with two movable sleeves, and the surfaces of the two square steel structures are provided with grooves and ridges for guiding and limiting, which cover the lifting shaft 302 inside and isolate it from the external environment, thereby enhancing the strength and durability of the structure and preventing corrosion from shortening its service life. It can also prevent physical damage caused by the external environment through isolation, playing an effective protective role.

[0036] The working principle and use process of the present invention: The lifting beam 600 cooperates with the reset rod 400 to form a lifting configuration. When a pedestrian attempts to climb over the guardrail, he or she supports the lifting beam 600 with his or her hands and applies the weight of his or her body to the lifting beam 600, thereby causing the reset rod 400 to be compressed and the lifting shaft 302 to descend together. The lifting shaft 302 moves downward relative to the push rod 304, and a relative displacement difference is generated between the two. Therefore, the top end of the push rod 304 sinks into the storage cavity 3021, and the spring 1 305 is compressed at this time. The rotation of the push rod 304 on the rotating column 303 can be delayed. The spring 1 305 stores some energy in advance, and then releases it to slowly cause the protrusion 3041 to act on the spiral groove 3032, so that the rotating column 303 is driven to rotate, which helps to warn motor vehicles in the case of relatively low visibility at night, indicating that there is a pedestrian climbing over here, so that the driver can prepare for avoidance or braking in advance.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road intermediate guardrail for traffic engineering, comprising a crossbeam (100) and a plurality of longitudinal beams (200), characterized in that: Also includes, The reflective beams (300) are arranged in parallel and staggered between the longitudinal beams (200). The reset rod (400) is mounted on both ends of the crossbeam (100). A lifting beam (600) is fixedly mounted on the top of the reset rod (400) and both ends of the lifting beam (600) are slidably connected to the middle column of the guardrail. The reflective beam (300) comprises a light-transmitting cover (301) and a rotating column (303) rotatably arranged inside the light-transmitting cover (301); a spiral groove (3032) is arranged at the top end of the rotating column (303); a push rod (304) is threadedly engaged inside the spiral groove (3032); the push rod (304) is elastically connected to the lifting shaft (302), and the lifting shaft (302) is fixedly connected to the bottom of the lifting beam (600); when the lifting beam (600) is pressed downward by an external force, the push rod (304) is pushed downward to be spirally coupled with the spiral groove (3032), causing the rotating column (303) to rotate; and a reflective block (3031) is arranged on the rotating column (303).

2. A road middle guardrail for traffic engineering according to claim 1, characterized in that: The reset rod (400) comprises a guide rod (402) and a fixing sleeve (401) which are sleeved together, and the fixing sleeve (401) is fixedly connected to the crossbeam (100), and the guide rod (402) is fixedly connected to the lifting beam (600). The reset rod (400) further comprises a spring three (403) sleeved inside the fixing sleeve (401) for elastically supporting the fixing sleeve (401) upward, a rubber ring (404) sleeved on the circumference of the guide rod (402) for forming an interference fit with the inner wall of the fixing sleeve (401), and a valve core (405) arranged at the bottom of the fixing sleeve (401) for connecting the inner cavity of the fixing sleeve (401) with the external environment.

3. A road middle guardrail for traffic engineering according to claim 2, characterized in that: The valve core (405) is composed of four fan-shaped one-way flaps, and when not in conduction, the four fan-shaped one-way flaps are provided with an air hole (4051) in the middle thereof for always connecting the inner cavity of the fixing sleeve (401) and the external environment; The one-way flap of the valve core (405) can only be bent towards the external environment.

4. The middle road guardrail for traffic engineering according to claim 1, characterized in that: A storage cavity (3021) is provided at the bottom of the lifting shaft (302), and the top end of the push rod (304) is movably sleeved in the storage cavity (3021) so as to be able to slide. A spring (305) is sleeved on the outer circumference of the push rod (304) and elastically supported between the bottom end of the lifting shaft (302) and the push rod (304). The bottom end of the push rod (304) is provided with two protrusions (3041) that are engaged in the spiral groove (3032).

5. A road middle guardrail for traffic engineering according to claim 4, characterized in that: A plurality of shading strips (3011) are equidistantly arranged on the light-transmitting cover (301) in the vertical direction, and a plurality of reflective blocks (3031) are also equidistantly arranged on the rotating column (303), and the distance between the reflective blocks (3031) is equal to the distance between two adjacent shading strips (3011). The reflective block (3031) is level with the shading strip (3011) in an initial state where the lifting beam (600) is not subjected to pressure.

6. The middle road guardrail for traffic engineering according to claim 1, characterized in that: The reflective beam (300) further comprises an elastic column (306) arranged at the bottom end of the rotating column (303), the elastic column (306) being composed of a sliding sleeve and a guide column which are sleeved on each other, and the sliding sleeve and the guide column are kept vertically limited in the circumferential direction, and a second spring (307) elastically supported between the guide column and the rotating column (303) is arranged inside the sliding sleeve; The bottom end of the elastic column (306) is rotatably connected to the bottom of the light-transmitting cover (301) via a bearing (308).

7. A road middle guardrail for traffic engineering according to claim 6, characterized in that: The rotating columns (303) are two symmetrically arranged arc-shaped columns coaxial with the lifting shaft (302), the arc of the arc-shaped columns is a quarter of a circle, and the reflective blocks (3031) are fixedly mounted on the outer peripheral surfaces of the arc-shaped columns.

8. The middle road guardrail for traffic engineering according to claim 1, characterized in that: An isolation cover (500) is provided between the cross beam (100) and the lifting beam (600), and the isolation cover (500) covers a portion of the lifting shaft (302) located between the cross beam (100) and the lifting beam (600) to isolate the portion from the external environment.

Images