An emergency lane special warning fence for viaduct

Abstract

The application relates to the technical field of traffic safety, and discloses a special warning fence for an emergency lane of a viaduct, which comprises a device main body, lifting units are fixedly connected to the two sides of the middle part of the device main body, a turning-leaf unit is fixedly arranged at the top of the lifting unit, an emergency unit is fixedly arranged on the inner side of the device main body, a linkage unit is fixedly connected to the bottom end of the emergency unit, and a warning unit is fixedly connected to the top end of the device main body. Through the cooperation of the lifting unit and the turning-leaf unit, when an accident occurs, if a vehicle does not collide with the fence, the lifting unit is lowered through manual cylinder rotation, the surrounding fan blade is made horizontal at the same time, the driver's field of vision is expanded behind the turning position, the specific situation of the accident vehicle on the other side of the turning position can be found out, and the vehicle can be slowed down; if the vehicle collides with the fence, the lifting unit and the warning unit can be started to work through the emergency unit, the structure is simple, the problem of the dead angle of the driver's vision at the turning position is solved, and the problem of the maintenance and repair efficiency is solved.

Description

Technical Field

[0001] This invention relates to the field of traffic safety technology, specifically a special warning guardrail for emergency lanes on elevated bridges. Background Technology

[0002] Highway guardrails are the main form of semi-rigid guardrails. They are a continuous structure made of corrugated steel guardrail panels spliced ​​together and supported by main posts. When a vehicle collides with them, they absorb energy, making them less likely to be destroyed and providing good protection for the vehicle and its occupants.

[0003] The following problems exist in the implementation of a certain technology related to a special warning guardrail for emergency lanes on elevated bridges:

[0004] 1. The support block has a certain lateral displacement, compressing the second spring to achieve lateral force buffering and improve overall safety. A shelf is provided on the outer wall of the guardrail, and reflective strips are fixed on the outer wall of the shelf. The reflective strips on the shelf serve as a warning and prevent collisions caused by lighting problems when driving at night. In practical applications, the guardrail is located at the position before entering a curve, especially a sharp right turn. If a car accident or obstacle occurs, the following vehicle may not be able to brake in time due to the blind spot created by the right-hand turning guardrail, resulting in a secondary collision. Generally, the only way to prevent this is to educate drivers to slow down when turning. However, the speed of vehicles on elevated roads is already very high, and once an accident occurs, it is difficult to avoid. The time waiting for the traffic police to arrive is still very dangerous.

[0005] 2. Limiting blocks are fixed on both the movable plate and the inner side wall of the placement slot. Each limiting block has a slot, and each slot has a locking block. A locking rod is located between the two locking blocks. The two ends of the locking rod pass through the two limiting blocks and are fixedly connected to the opposite side walls of the two locking blocks. In actual application, once a traffic accident occurs, the vehicle owner can only place the warning sign himself, which is very inconspicuous and difficult to identify. It is especially difficult to see on curves due to the blind spot. The driver can only wait for the traffic police to arrive and place a more obvious warning sign, which is very inconvenient. The traffic police cannot prevent the warning sign from being placed in time to avoid further accidents. Summary of the Invention

[0006] The purpose of this invention is to provide a special warning guardrail for emergency lanes on elevated bridges to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a special warning guardrail for emergency lanes of elevated bridges, comprising a main body, lifting units fixedly connected to both sides of the middle part of the main body, a leaf-turning unit fixedly installed on the top of the lifting units, an emergency unit fixedly installed on the inner side of the main body, a linkage unit fixedly connected to the bottom of the emergency unit, and a warning unit fixedly connected to the top of the main body.

[0008] Preferably, the main body of the equipment includes two support columns, two enclosure panels are fixedly connected to the two support columns, two height adjustment columns are fixedly connected to the top surface of the top enclosure panel, a base plate is fixedly connected to the top of the two height adjustment columns, and side wall panels are fixedly connected to both sides of the base plate.

[0009] Preferably, the lifting unit includes two sliding boxes, which are fixedly mounted on both sides of the base plate. A sliding groove is formed on the inner wall of each sliding box. A sliding block is slidably connected to the inner side of each sliding box, and the sliding block is limited by the sliding groove. A sliding spring is fixedly connected between the sliding block and the sliding box. A connecting column plate is slidably connected to the side end of the sliding block. An emergency unit is fixedly connected to the bottom end of the connecting column plate. A lifting plate is rotatably connected to the top of the sliding block. An inner wall plate is rotatably connected to the inner wall of the sliding box. A leaf-turning unit is rotatably connected at the intersection of the lifting plate and the inner wall plate. Four sets of lifting plates and inner wall plates with the same structure are rotatably connected to the top of the lifting plate and the inner wall plate.

[0010] Preferably, the leaf-turning unit includes five pairs of friction wheels. Each pair of friction wheels has a baffle fan blade fixedly connected to its inner side. Each pair of friction wheels is rotatably connected to the outer side of the intersection of the lifting plate and the inner wall plate. Friction tracks are slidably connected to the outer sides of the five pairs of friction wheels. Friction bevel teeth are fixedly connected to the outer side of the bottom friction wheels. Connecting bevel teeth are meshed with the side ends of the friction bevel teeth. Connecting gears are fixedly connected to the front ends of the connecting bevel teeth. Fixed tooth plates are meshed with the side ends of the connecting gears. Fixed tooth plates are fixedly connected to the top surface of the sliding box.

[0011] Preferably, the emergency unit includes two emergency sliding plates, with an emergency buffer plate slidably connected between them. A protective plate is fixedly connected to the outer side of the emergency buffer plate, and a buffer spring is fixedly connected to the inner side of the emergency buffer plate. Sliding top plates are slidably connected to both sides of the emergency buffer plate, and sliding cylinders are fixedly connected to the side ends of the two sliding top plates. An emergency locking plate is fixedly connected to the inner side of the sliding cylinders, and an emergency spring is fixedly connected to the bottom end of the emergency locking plate. The emergency locking plate is rotatably connected to the bottom end of the base plate, and an emergency slot plate is slidably connected to the top of the emergency locking plate. An emergency stud is threadedly connected to the outer end of the emergency slot plate, and the emergency stud penetrates the side wall of the emergency slot plate. A manual turntable is fixedly connected to the outer end of the emergency stud, and a manual cylinder is rotatably connected to the outer wall of the manual turntable. The side wall of the emergency slot plate is fixedly connected to the inner side of the connecting column plate.

[0012] Preferably, the linkage unit includes an active rotating plate, which is rotatably connected to both sides of the base plate. An auxiliary rotating plate is rotatably connected to the bottom of the active rotating plate, and a linkage sliding plate is rotatably connected to the top of the auxiliary rotating plate. The linkage sliding plate is slidably connected to the inner side of four linkage cylinders, and an induction switch is slidably connected to the side of the linkage sliding plate.

[0013] Preferably, the warning unit includes a warning motor, an output end of which is fixedly connected to a warning rotating plate, a top end of which is fixedly connected to a warning push plate, a top end of which is rotatably connected to a swing box, a swing toothed plate fixedly connected inside the swing box, a telescopic gear meshing with the toothed end of the swing toothed plate, a telescopic servo fixedly connected to the side end of the telescopic gear, the telescopic servo fixedly connected inside the telescopic box, the telescopic box slidably connected inside the swing box, and a warning sign fixedly connected to the top end of the telescopic box.

[0014] (I) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a special warning guardrail for emergency lanes on elevated bridges, which has the following beneficial effects:

[0016] 1. This special warning guardrail for the emergency lane of the overpass, through the cooperation of the lifting unit and the flapping unit, allows the driver to quickly lower the lifting unit by manually rotating the cylinder in the event of an accident, provided that the vehicle has not collided with the guardrail and the driver can exit the vehicle. At the same time, it makes the guardrail blades horizontal, expanding the driver's field of vision at the bend, enabling them to see the specific situation of the accident vehicle on the other side of the bend and slow down. Furthermore, the lifting unit and flapping unit have a simple structure, are convenient and quick to maintain and repair, and can take immediate action, solving the problem of blind spots for drivers at bends and the problem of maintenance efficiency.

[0017] 2. The special warning guardrail for the emergency lane of this overpass, through the operation of the warning unit, can be activated by the driver manually or by the action of the emergency unit after an accident occurs. This allows the warning unit to warn the vehicles behind of the accident ahead in time, enabling them to slow down or change lanes in advance, avoiding the problem of unclear warning signs or having to wait for traffic police to handle the situation.

[0018] 3. The special warning guardrail for the emergency lane of this overpass, through the operation of the emergency unit, in special circumstances where an accident occurs at the guardrail, the collision of the vehicle directly triggers the raising and lowering of the guardrail and the activation of the warning unit, giving the accident warning to the vehicles behind immediately. In this process, the driver does not need to get out of the vehicle to manually rotate and lower the guardrail blades to give a warning, avoiding the problem that in some accidents, when the vehicle collides with the guardrail, the driver cannot get out of the vehicle and cannot give a timely warning. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a frontal 3D structural diagram.

[0021] Figure 2 This is a diagram of the three-dimensional structure that follows.

[0022] Figure 3 This is a top-down plan view of the main body of the equipment at the bend.

[0023] Figure 4 This is a 3D structural diagram of an emergency buffer plate.

[0024] Figure 5 This is a three-dimensional structural diagram of the emergency response unit.

[0025] Figure 6 This is a 3D structural diagram of the lifting unit.

[0026] Figure 7 This is a three-dimensional structural diagram of the leaf-turning unit.

[0027] Figure 8 This is a three-dimensional structural diagram of the linkage unit.

[0028] Figure 9 This is a 3D structural diagram of the warning unit.

[0029] In the diagram: 1. Main body of the equipment; 101. Support column; 102. Enclosure panel; 103. Height adjustment column; 104. Foundation plate; 105. Side wall panel; 2. Lifting unit; 201. Sliding box; 202. Slide groove; 203. Sliding block; 204. Sliding spring; 205. Connecting column plate; 206. Lifting plate; 207. Inner wall panel; 3. Flip-turning unit; 301. Friction wheel; 302. Enclosure fan blade; 303. Friction track; 304. Friction bevel gear; 305. Connecting bevel gear; 306. Connecting gear; 307. Fixed locking plate; 4. Emergency unit; 401. Emergency sliding plate; 402. Emergency buffer plate; 403. Protective plate 404. Buffer spring; 405. Sliding top plate; 406. Sliding cylinder; 407. Emergency clamping plate; 408. Emergency spring; 409. Emergency slot plate; 410. Emergency stud; 411. Manual turntable; 412. Manual cylinder; 5. Linkage unit; 501. Active rotating plate; 502. Auxiliary rotating plate; 503. Linkage sliding plate; 504. Linkage cylinder; 505. Induction switch; 6. Warning unit; 601. Warning motor; 602. Warning rotating plate; 603. Warning push plate; 604. Swing box; 605. Swinging clamping plate; 606. Telescopic gear; 607. Telescopic servo motor; 608. Telescopic box; 609. Warning sign. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1 A special warning guardrail for emergency lanes of elevated bridges includes a main body 1, with lifting units 2 fixedly connected to both sides of the middle part of the main body 1, a leaf-turning unit 3 fixedly installed on the top of the lifting unit 2, an emergency unit 4 fixedly installed on the inner side of the main body 1, a linkage unit 5 fixedly connected to the bottom of the emergency unit 4, and a warning unit 6 fixedly connected to the top of the main body 1.

[0032] Please see Figure 1 , Figure 2 and Figure 3 The main body of the equipment 1 includes two support columns 101, two enclosure panels 102 are fixedly connected to the two support columns 101, two height adjustment columns 103 are fixedly connected to the top surface of the enclosure panel 102, a base plate 104 is fixedly connected to the top of the two height adjustment columns 103, and side wall panels 105 are fixedly connected to both sides of the base plate 104.

[0033] Please see Figure 2 and Figure 6 The lifting unit 2 includes two sliding boxes 201, which are fixedly installed on both sides of the base plate 104. The inner wall of the sliding box 201 is provided with a sliding groove 202. A sliding block 203 is slidably connected to the inner side of the sliding box 201. The sliding block 203 is limited to sliding by the sliding groove 202. A sliding spring 204 is fixedly connected between the sliding block 203 and the sliding box 201. A connecting column plate 205 is slidably connected to the side end of the sliding block 203. An emergency unit 4 is fixedly connected to the bottom end of the connecting column plate 205. A lifting plate 206 is rotatably connected to the top end of the sliding block 203. An inner wall plate 207 is rotatably connected to the inner wall of the sliding box 201. A leaf-turning unit 3 is rotatably connected at the intersection of the lifting plate 206 and the inner wall plate 207. Four sets of lifting plates 206 and inner wall plates 207 with the same structure are rotatably connected to the top ends of the lifting plate 206 and the inner wall plate 207.

[0034] Please see Figure 7The leaf-turning unit 3 includes five pairs of friction wheels 301. Each pair of friction wheels 301 is fixedly connected to a baffle fan blade 302 on its inner side. Each pair of friction wheels 301 is rotatably connected to the outer side of the lifting plate 206 and the inner wall plate 207 at their intersection. Friction tracks 303 are slidably connected to the outer side of the five pairs of friction wheels 301. Friction bevel teeth 304 are fixedly connected to the outer side of the bottom friction wheels 301. Connecting bevel teeth 305 are meshed with the side ends of the friction bevel teeth 304. Connecting gears 306 are fixedly connected to the front end of the connecting bevel teeth 305. Fixed tooth plates 307 are meshed with the side ends of the connecting gears 306. Fixed tooth plates 307 are fixedly connected to the top surface of the sliding box 201.

[0035] Please see Figure 4 and Figure 5 The emergency unit 4 includes two emergency sliding plates 401, with an emergency buffer plate 402 slidably connected between them. A protective plate 403 is fixedly connected to the outer side of the emergency buffer plate 402, and a buffer spring 404 is fixedly connected to the inner side of the emergency buffer plate 402. Sliding top plates 405 are slidably connected to both sides of the emergency buffer plate 402, and sliding cylinders 406 are fixedly connected to the side ends of the two sliding top plates 405. An emergency locking plate 407 is fixedly connected to the inner side of the sliding cylinders 406, and the bottom end of the emergency locking plate 407... An emergency spring 408 is fixedly connected. An emergency clamping plate 407 is rotatably connected to the inside of the bottom end of the base plate 104. An emergency slot plate 409 is slidably connected to the top of the emergency clamping plate 407. An emergency stud 410 is threadedly connected to the outer end of the emergency slot plate 409. The emergency stud 410 penetrates the side wall of the emergency slot plate 409. A manual turntable 411 is fixedly connected to the outer end of the emergency stud 410. A manual cylinder 412 is rotatably connected to the outer wall of the manual turntable 411. The side wall of the emergency slot plate 409 is fixedly connected to the inner side of the connecting column plate 205.

[0036] Please see Figure 8 The linkage unit 5 includes an active rotating plate 501, which is rotatably connected to both sides of the base plate 104. An auxiliary rotating plate 502 is rotatably connected to the bottom end of the active rotating plate 501. A linkage slide plate 503 is rotatably connected to the top end of the auxiliary rotating plate 502. The linkage slide plate 503 is slidably connected to the inner side of four linkage cylinders 504. An induction switch 505 is slidably connected to the side end of the linkage slide plate 503.

[0037] Please see Figure 9The warning unit 6 includes a warning motor 601, an output end of which is fixedly connected to a warning rotating plate 602, a top end of which is fixedly connected to a warning push plate 603, a top end of which is rotatably connected to a swing box 604, a swing toothed plate 605 fixedly connected inside the swing box 604, a telescopic gear 606 meshing with the toothed end of the swing toothed plate 605, a telescopic servo motor 607 fixedly connected to the side end of the telescopic gear 606, the telescopic servo motor 607 fixedly connected inside the telescopic box 608, the telescopic box 608 slidably connected inside the swing box 604, and a warning sign 609 fixedly connected to the top end of the telescopic box 608.

[0038] In summary, in the event of an accident without collision with the main body of the equipment 1, the driver can exit the vehicle. The driver can manually rotate the manual turntable 411 via the manual cylinder 412, thereby rotating the emergency stud 410 and moving it outward, causing the sliding block 203 to move outward as well. With the assistance of the sliding spring 204, the sliding block 203 moves outward, causing the lifting plate 206 and the inner wall plate 207 to rotate in a cross-rotation. This results in the five sets of inner wall plates 207 and the lifting plate 206 lowering. During the lowering process, to avoid the enclosure fan... When blade 302 is stuck, the fixed tooth plate 307 remains stationary during descent, which in turn causes the connecting gear 306 to rotate, which in turn drives the connecting bevel gear 305 to rotate, which in turn causes the friction bevel gear 304 to rotate, which in turn causes the friction wheel 301 to rotate, which in turn causes the enclosure fan blade 302 to rotate. At the same time, the friction track 303 drives the four enclosure fan blades 302 at the top to rotate. When the sliding block 203 moves to the outermost position inside the sliding box 201, it touches one end of the sliding groove 202 inside the sliding box 201, and the controller inside the sliding box 201 activates the top warning unit 6.

[0039] In this invention, when the warning unit 6 is activated, the warning motor 601 and the telescopic servo motor 607 are activated. The warning motor 601 drives the warning rotating plate 602 to rotate, which in turn drives the warning push plate 603 to move, which in turn drives the swing box 604 to swing back and forth. At the same time, the telescopic servo motor 607 drives the telescopic gear 606 to rotate, which in turn drives the telescopic box 608 to move outward under the rotational cooperation of the telescopic gear 606 and the swing pawl plate 605, making the position of the warning sign 609 higher. With the back-and-forth swing, the warning sign 609 can move and become more conspicuous, so that vehicles behind can see the high-mounted swinging warning sign 609 at the first time. Here, in order to prevent the warning sign 609 from affecting the driving of vehicles, the swing angle of the warning sign 609 needs to be limited to a certain angle.

[0040] In normal use, this invention may encounter a special situation where a vehicle collides with a guardrail, preventing the driver from exiting the vehicle. Before colliding with the guardrail, the vehicle will collide with the protective plate 403, which will cause the emergency buffer plate 402 to move inside the emergency sliding plate 401. The buffer spring 404 will cushion the impact, causing the emergency buffer plate 402 to slide and push the emergency top plate open to both sides. This will cause the emergency top plate to push open the sliding cylinder 406, causing the emergency locking plate 407 to lose its limiting function. This will cause the emergency slot plate 409 to move outward, causing the connecting column plate 205 to slide and move the sliding block 203. This will cause the lifting unit 2 to descend and the barrier fan blades 302 in the flipping unit 3 to flip, simultaneously driving the linkage unit 5 to move. During the movement, the connecting column plate 205 will actuate the active rotating plate 501, causing the active rotating plate 501 to rotate. This will cause the auxiliary rotating plate 502 to move, causing the linkage sliding plate 503 to slide and touch the sensor switch 505. After the sensor switch 505 is activated, the top warning unit 6 will be activated, completing the entire emergency operation.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meanings of the above terms within this invention based on the specific circumstances.

[0042] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings.

[0043] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A special warning guardrail for emergency lanes on elevated bridges, comprising a main body (1), characterized in that: Lifting units (2) are fixedly connected to both sides of the middle part of the main body (1). A leaf-turning unit (3) is fixedly installed on the top of the lifting unit (2). An emergency unit (4) is fixedly installed on the inner side of the main body (1). A linkage unit (5) is fixedly connected to the bottom of the emergency unit (4). A warning unit (6) is fixedly connected to the top of the main body (1). The main body (1) of the equipment includes two support columns (101), and two side panels (102) are fixedly connected to the two support columns (101). Two height adjustment columns (103) are fixedly connected to the top surface of the top side panel (102). A base plate (104) is fixedly connected to the top of the two height adjustment columns (103). Side wall panels (105) are fixedly connected to both sides of the base plate (104). The lifting unit (2) includes two sliding boxes (201). The two sliding boxes (201) are fixedly arranged on both sides of the base plate (104). A sliding groove (202) is opened on the inner wall of the sliding box (201). A sliding block (203) is slidably connected to the inner side of the sliding box (201). 03) The sliding is limited by the sliding groove (202). A sliding spring (204) is fixedly connected between the sliding block (203) and the sliding box (201). A connecting column plate (205) is slidably connected to the side end of the sliding block (203). An emergency unit (4) is fixedly connected to the bottom end of the connecting column plate (205). A lifting plate (206) is rotatably connected to the top end of the sliding block (203). An inner wall plate (207) is rotatably connected to the inner wall of the sliding box (201). A leaf-turning unit (3) is rotatably connected at the intersection of the lifting plate (206) and the inner wall plate (207). Four sets of lifting plates (206) and inner wall plates (207) with the same structure are rotatably connected to the top end of the lifting plate (206) and the inner wall plate (207). The leaf-turning unit (3) includes five pairs of friction wheels (301). Each pair of friction wheels (301) has a baffle fan blade (302) fixedly connected to its inner side. The outer side of each pair of friction wheels (301) is rotatably connected to the intersection of the lifting plate (206) and the inner wall plate (207). Friction tracks (303) are slidably connected to the outer side of the five pairs of friction wheels (301). Friction bevel teeth (304) are fixedly connected to the outer side of the bottom friction wheel (301). The side ends of the friction bevel teeth (304) are engaged with each other. A connecting bevel gear (305) is connected to the front end of the connecting bevel gear (305), and a connecting gear (306) is fixedly connected to the front end of the connecting gear (306). A fixed tooth plate (307) is meshed with the side end of the connecting gear (306). The fixed tooth plate (307) is fixedly connected to the top surface of the sliding box (201). When the sliding block (203) moves to the outermost side inside the sliding box (201), it touches one end of the sliding groove (202) inside the sliding box (201), and the controller inside the sliding box (201) activates the top warning unit (6).

2. The special warning guardrail for emergency lanes on elevated bridges according to claim 1, characterized in that: The emergency unit (4) includes two emergency sliding plates (401), with an emergency buffer plate (402) slidably connected between the two emergency sliding plates (401). A protective plate (403) is fixedly connected to the outer side of the emergency buffer plate (402), and a buffer spring (404) is fixedly connected to the inner side of the emergency buffer plate (402). Sliding top plates (405) are slidably connected to both sides of the emergency buffer plate (402). Sliding cylinders (406) are fixedly connected to the side ends of the two sliding top plates (405). An emergency locking plate (407) is fixedly connected to the inner side of the sliding cylinders (406). The bottom end of the emergency locking plate (407) is fixedly... An emergency spring (408) is fixedly connected. The emergency clamping plate (407) is rotatably connected to the bottom of the base plate (104). An emergency slot plate (409) is slidably connected to the top of the emergency clamping plate (407). An emergency stud (410) is threadedly connected to the outer end of the emergency slot plate (409). The emergency stud (410) penetrates the side wall of the emergency slot plate (409). A manual turntable (411) is fixedly connected to the outer end of the emergency stud (410). A manual cylinder (412) is rotatably connected to the outer wall of the manual turntable (411). The side wall of the emergency slot plate (409) is fixedly connected to the inner side of the connecting column plate (205).

3. The special warning guardrail for emergency lanes on elevated bridges according to claim 1, characterized in that: The linkage unit (5) includes an active rotating plate (501), which is rotatably connected to both sides of the base plate (104). An auxiliary rotating plate (502) is rotatably connected to the bottom end of the active rotating plate (501), and a linkage sliding plate (503) is rotatably connected to the top end of the auxiliary rotating plate (502). The linkage sliding plate (503) is slidably connected to the inside of four linkage cylinders (504), and an induction switch (505) is slidably connected to the side end of the linkage sliding plate (503).

4. The special warning guardrail for emergency lanes on elevated bridges according to claim 1, characterized in that: The warning unit (6) includes a warning motor (601), a warning rotating plate (602) is fixedly connected to the output end of the warning motor (601), a warning push plate (603) is fixedly connected to the top of the warning rotating plate (602), a swing box (604) is rotatably connected to the top of the warning push plate (603), a swing tooth plate (605) is fixedly connected inside the swing box (604), a telescopic gear (606) is meshed with the tooth end of the swing tooth plate (605), a telescopic servo motor (607) is fixedly connected to the side end of the telescopic gear (606), the telescopic servo motor (607) is fixedly connected inside the telescopic box (608), the telescopic box (608) is slidably connected inside the swing box (604), and a warning sign (609) is fixedly connected to the top of the telescopic box (608).

Images