A conversion device for a tidal lane and a method of installing the same

Abstract

The present application relates to the technical field of road traffic marking, and particularly relates to a conversion device suitable for tidal lane and a mounting method thereof, comprising a conversion device body arranged in a double yellow dotted line on a road surface, the conversion device body comprising a liftable strip-shaped block and a fixed strip-shaped block on the convex road surface; the fixed strip-shaped block is connected with a concrete bottom groove through a fixing pin, the surface of the fixed strip-shaped block is provided with an opening and closing cover, and the fixed strip-shaped block is provided with a controller; the liftable strip-shaped block is connected with a first steel plate assembly below through a reserved hole and a nut, the first steel plate assembly is provided with a second steel plate assembly below, the second steel plate assembly is provided with an extension assembly below, and the bottom of the extension assembly is connected with a cast iron piece in the concrete bottom groove through a pre-embedded piece. The present application can be suitable for various different tidal phenomena, the position is fixed, and the present application can effectively guide vehicles to normally drive according to traffic signals, and prevent the occurrence of illegal behaviors such as random merging, random turning and random overtaking.

Description

Technical Field

[0001] This invention relates to the field of road traffic marking technology, and in particular to a reversing device and its installation method suitable for tidal flow lanes. Background Technology

[0002] A tidal flow lane is a traffic management measure designed to alleviate traffic congestion and improve road utilization efficiency. It involves designating one or more lanes on a road as lanes for specific directions of travel during a given time period to accommodate changes in traffic flow.

[0003] Currently, there are two main ways to implement tidal flow lanes: The first method uses traffic signs, traffic lights, and similar devices to remind drivers to give way in one or more tidal flow lanes. However, if vehicles travel in the opposite direction, it will cause traffic chaos and severe congestion. This not only wastes more people's time but may also cause traffic accidents, threatening everyone's lives.

[0004] The second method involves using specialized zipper trucks to move the bollards one or more lanes to create a tidal flow lane. This physical separation further enhances the safety and efficiency of the tidal flow lane setup. However, encountering obstacles during the relocation process will significantly waste time, and the need for zipper trucks for each lane change will increase costs. Furthermore, if the bollards are accidentally bumped or knocked off their original positions after relocation, it will pose a safety hazard to drivers using the tidal flow lane. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lane-changing device and its installation method suitable for tidal flow lanes. This device is applicable to various tidal flow conditions, has a fixed position, and can effectively guide vehicles to drive normally according to traffic signals, preventing violations such as arbitrary lane changes, arbitrary turns, and arbitrary overtaking. It does not affect normal lane-changing behavior; it does not require the use of a zipper truck, saving costs, and is easy to install and replace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conversion device suitable for tidal flow lanes includes a conversion device body arranged within the double yellow dashed lines of the road surface. The conversion device body is located in the concrete bottom groove of the road surface, which includes a roadbed, a base course above the roadbed, and an asphalt surface course above the base course.

[0008] The main body of the transformation device includes a liftable strip block and a fixed strip block that protrude from the road surface;

[0009] The fixed strip block is connected to the concrete bottom groove by a fixing pin. The surface of the fixed strip block is provided with an opening and closing cover, and a controller is provided inside the fixed strip block.

[0010] The liftable strip block is connected to the first steel plate assembly below through a reserved hole and a nut. A second steel plate assembly is provided below the first steel plate assembly, and a telescopic assembly is provided below the second steel plate assembly. The bottom of the telescopic assembly is connected to the cast iron part in the concrete bottom trench through a pre-embedded part.

[0011] Preferably, the first steel plate assembly includes a trapezoidal steel plate and a first welding bolt connected to the trapezoidal steel plate. The first welding bolt is vertically disposed above the trapezoidal steel plate and is sleeved with a nut.

[0012] Preferably, the second steel plate assembly includes an inner channel steel plate that matches and is connected to the trapezoidal steel plate, and a second welding bolt that is connected to the inner channel steel plate, wherein the second welding bolt is vertically disposed below the inner channel steel plate.

[0013] Preferably, a first sliding groove is provided above the telescopic component, and a second sliding groove is provided below the telescopic component, with the first and second sliding grooves being arranged vertically and vertically respectively; the telescopic component is disposed between the first and second sliding grooves, and a spring damper is also provided between the first and second sliding grooves, with the spring damper disposed on the left and right sides of the telescopic component.

[0014] Preferably, the telescopic assembly includes a first slider and a second slider disposed in a first groove, and a third slider and a fourth slider disposed in a second groove. The first slider is connected to a first connecting rod, the second slider is connected to a second connecting rod, the third slider is connected to a third connecting rod, and the fourth slider is connected to a fourth connecting rod. The first and second connecting rods are arranged in a cross configuration and are hinged at the intersection point. The third and fourth connecting rods are arranged in a cross configuration and are hinged at the intersection point. The end of the first connecting rod is hinged to the end of the third connecting rod, and the end of the second connecting rod is hinged to the end of the fourth connecting rod.

[0015] Preferably, the outer sides of the first and second sliders are provided with transverse compression springs, the outer sides of the third and fourth sliders are provided with transverse compression springs, and a trapezoidal blocking block is provided on the left side of the transverse compression spring on the outer side of the third slider.

[0016] Preferably, the controller includes a control block and a control handle located below the control block. A vertical compression spring is sleeved on the control handle. A heart-shaped groove is provided below the control handle. A limiting rod is provided below the heart-shaped groove. One end of the limiting rod is engaged with the heart-shaped groove, and the other end of the limiting rod is hinged to a bearing. A wedge block is connected below the bearing, and the wedge block can engage with a pre-reserved joint in the concrete bottom trench.

[0017] Preferably, the slope of the wedge block is the same as that of the trapezoidal blocking block. When the wedge block moves downward, it can cause the trapezoidal blocking block to move to the right, thereby blocking the sliding of the third slider.

[0018] By adopting the above technical solution: when the control block is not pressed, if a vehicle illegally changes into the tidal flow lane, the retractable strip block will descend with the telescopic component, thereby blocking the illegal lane change; when the control block is pressed, the limiting rod will slide and lock in the heart-shaped groove, causing the wedge block to lock in the reserved gap, and the trapezoidal blocking block to lock the third slider, thereby preventing the telescopic component from descending and maintaining its original raised state, allowing the vehicle to safely change into the tidal flow lane.

[0019] The present invention also provides an installation method for a reversing device suitable for tidal flow lanes, comprising the following steps:

[0020] Step 1: Fabrication of individual precast concrete base trenches: Precast concrete base trenches are manufactured at the precast component processing plant. The length of each individual precast concrete base trench is A = 2~4m, width is B = 80~100cm, and thickness is H = 80~100cm. A rectangular prism is excavated in the center, with a length A = 2~4m, width B3 = 40~45cm, and depth H2 = 60~80cm. A small rectangular prism is excavated on the side platform, with a length A = 2~4m, width B1 = 20~30cm, and depth H1 = 20~30cm. After the individual precast concrete base trenches are fabricated, they are transported to the designated location for installation.

[0021] Step 2: Excavating and Cutting Strip-Shaped Foundation Trenches: First, measure and locate the strip-shaped foundation trench to be excavated between the double yellow dashed lines. The width of the strip-shaped foundation trench should be 10-20mm wider and the depth should be 10-20mm deeper than the precast concrete base trench. Then, use a cutting machine to cut the road surface to its full thickness, strictly controlling the depth during cutting to avoid damaging the base layer. After cutting, road surface fragments should be collected and properly disposed of, and random disposal is strictly prohibited. Finally, compact the road base layer and spread dry-mixed mortar with a water-cement ratio of 0.2 as a leveling layer, with the spreading thickness controlled within 20mm.

[0022] Step 3: Assemble the conversion device: First, install cast iron parts in the middle and left end of the precast concrete bottom trench, and connect the second slide in the middle with embedded bolts. Then, install the telescopic component, the first slide, and the second steel plate component in sequence and make a second bolt connection. Connect the liftable strip block to the first steel plate component with bolts. The trapezoidal steel plate of the first steel plate component engages with the inner groove steel plate of the second steel plate component and connects to the first slide. On the left side, install the controller, the fixed strip block, and the fixing pin in sequence to complete the splicing of one conversion device. Then, install multiple conversion devices in sequence.

[0023] Step 4: Hoist the conversion device into place: According to the positioning line, vertically place the assembled double yellow dashed line warning system into the road surface groove.

[0024] Step 5: Filling road gaps: After the unit double yellow dashed line warning system is installed, single-sized crushed stone of the same width as the gap is squeezed into the joint between the road surface and the concrete bottom groove to improve the interlocking force between the road panels and enhance the load transfer performance.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This invention adopts a purely mechanical design, does not require power supply, is highly adaptable, and is easy to use.

[0027] 2. This invention can effectively prevent illegal lane changes, reduce the occurrence of accidents, and ensure driving safety.

[0028] 3. The conversion device in this invention is easy to install and saves manpower and financial resources for construction to a certain extent.

[0029] 4. This invention is highly adaptable and can change the tidal flow lane according to actual traffic conditions.

[0030] 5. This invention is detachable and replaceable, saving time and costs. Attached Figure Description

[0031] Figure 1 This is a planar distribution diagram of the invention in a road scene;

[0032] Figure 2 This is a schematic diagram of the structure of a single conversion device of the present invention;

[0033] Figure 3 This is a schematic diagram of the state after the controller of the present invention is started;

[0034] Figure 4 This is a schematic diagram showing the state of the controller not being started in this invention;

[0035] Figure 5 This is a schematic diagram of the connection between the liftable strip block and the slide groove in this invention;

[0036] Figure 6 This is a schematic diagram of the structure of the first steel plate assembly in this invention;

[0037] Figure 7 This is a schematic diagram of the structure of the second steel plate assembly in this invention;

[0038] Figure 8 This is a schematic diagram of the installation of the telescopic component and the slide in this invention;

[0039] Figure 9This is a schematic diagram of the telescopic component in this invention;

[0040] Figure 10 This is a schematic diagram of the controller in this invention;

[0041] Figure 11 This is a perspective view of the multiple transformation devices of the present invention;

[0042] Figure 12 This is a dimensional diagram of the precast concrete bottom trench in this invention. Detailed Implementation

[0043] 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.

[0044] Reference Figures 1-2 A conversion device suitable for tidal flow lanes includes a conversion device body arranged within the double yellow dashed lines of the road surface. The conversion device body is located in the concrete bottom groove 15 of the road surface. The road surface includes a roadbed 14, a base course 13 located above the roadbed 14, and an asphalt surface course 12 located above the base course 13.

[0045] The main body of the conversion device includes a liftable strip block 1 and a fixed strip block 16 that protrude from the road surface; in actual application, both the liftable strip block 1 and the fixed strip block 16 are made of plastic rubber.

[0046] The fixed strip block 16 is connected to the concrete bottom groove 15 by a fixing pin 18. The surface of the fixed strip block 16 is provided with an opening and closing cover 17, and the fixed strip block 16 is provided with a controller 19.

[0047] The liftable strip block 1 is connected to the first steel plate assembly 2 below through a reserved hole and nut 3, so that the force is evenly distributed and the liftable strip block 1 is prevented from being crushed; a second steel plate assembly 4 is provided below the first steel plate assembly 2, and a telescopic assembly 5 is provided below the second steel plate assembly 4. The bottom of the telescopic assembly 5 is connected to the cast iron part 21 in the concrete bottom trench 15 through a pre-embedded part 9.

[0048] Specifically, refer to Figure 6The first steel plate assembly 2 includes a trapezoidal steel plate 202 and a first welding bolt 201 connected to the trapezoidal steel plate 202. The first welding bolt 201 is vertically arranged above the trapezoidal steel plate 202 and is sleeved with a nut 3. Here, the first welding bolt 201 and the trapezoidal steel plate 202 are used to play the role of bearing load and connection.

[0049] Specifically, refer to Figure 7 The second steel plate assembly 4 includes an inner groove steel plate 402 that is matched and connected to the trapezoidal steel plate 202, and a second welding bolt 401 that is connected to the inner groove steel plate 402. The second welding bolt 401 is vertically arranged below the inner groove steel plate 402. In actual application, the trapezoidal steel plate 202 and the inner groove steel plate 402 can be engaged, which is convenient for disassembly and replacement. The inner groove steel plate 402 is bolted to the first sliding groove 6 below through the second welding bolt 401.

[0050] Specifically, refer to Figure 8 The telescopic component 5 has a first sliding groove 6 above it and a second sliding groove 7 below it. The first sliding groove 6 and the second sliding groove 7 are arranged vertically and vertically respectively. The telescopic component 5 is located between the first sliding groove 6 and the second sliding groove 7. A spring damper 11 is also provided between the first sliding groove 6 and the second sliding groove 7. The spring damper 11 is located on the left and right sides of the telescopic component 5.

[0051] Specifically, refer to Figure 9 The telescopic assembly 5 includes a first slider 501 and a second slider 502 disposed in a first slide groove 6, and a third slider 503 and a fourth slider 504 disposed in a second slide groove 7. The first slider 501 is connected to a first connecting rod 505, the second slider 502 is connected to a second connecting rod 506, the third slider 503 is connected to a third connecting rod 507, and the fourth slider 504 is connected to a fourth connecting rod 508. The first connecting rod 505 and the second connecting rod 506 are arranged in a cross manner and are hinged at the intersection point. The third connecting rod 507 and the fourth connecting rod 508 are arranged in a cross manner and are hinged at the intersection point. The end of the first connecting rod 505 is hinged to the end of the third connecting rod 507, and the end of the second connecting rod 506 is hinged to the end of the fourth connecting rod 508.

[0052] The first slider 501 and the second slider 502 are provided with transverse compression springs 10 on their outer sides, the third slider 503 and the fourth slider 504 are provided with transverse compression springs 10 on their outer sides, and a trapezoidal blocking block 8 is provided on the left side of the transverse compression spring 10 on the outer side of the third slider 503.

[0053] In this embodiment, the connecting rod and the slider are hinged to allow for smooth sliding between them; at the same time, the connecting rods are hinged to each other to allow the upper and lower connecting rods to extend and retract smoothly.

[0054] Specifically, refer to Figure 10 The controller 19 includes a control block 1901 and a control handle 1903 located below the control block 1901. A vertical compression spring 1902 is sleeved on the control handle 1903. A heart-shaped groove 1904 is provided below the control handle 1903. A limiting rod 1905 is provided below the heart-shaped groove 1904. One end of the limiting rod 1905 is engaged with the heart-shaped groove 1904 and can slide within the heart-shaped groove 1904. The other end of the limiting rod 1905 is hinged to a bearing 1906, which facilitates rotation while also providing a locking function. A wedge block 1907 is connected below the bearing 1906. The wedge block 1907 can engage with the reserved gap 20 in the concrete bottom groove 15.

[0055] Specifically, the slope of the wedge block 1907 is the same as the slope of the trapezoidal blocking block 8. When the wedge block 1907 moves downward, it can make the trapezoidal blocking block 8 move to the right, thereby blocking the sliding of the third slider 503.

[0056] The working process of this invention:

[0057] Reference Figure 4 When the control block 1901 is not pressed, the vehicle illegally changes into the tidal flow lane, meaning the wheels are pressing on the retractable strip block 1. Under the action of gravity, the retractable strip block 1, through the first steel plate assembly 2 and the second steel plate assembly 4 below, and under the action of the connecting rod, causes the first slider 501 and the second slider 502 to slide to the left and right sides in the first slide groove 6, and the third slider 503 and the fourth slider 504 to slide to the left and right sides in the second slide groove 7. And through the lateral compression spring 10 below, it pushes the trapezoidal blocking block 8 to move to the left, and finally causes the retractable strip block 1 to descend with the telescopic assembly 5; at the same time, it also prevents the controller 19 in the fixed strip block 16 from operating, thereby blocking the illegal lane change.

[0058] Reference Figure 3 When the control block 1901 is pressed, the vertical compression spring 1902 causes the limiting rod 1905 to slide and lock in the heart-shaped groove 1904, so that the wedge block 1907 is locked in the reserved gap 20. The wedge block 1907 also causes the trapezoidal blocking block 8 to lock the third slider 503 and prevent it from sliding in the second groove 7, so that the telescopic component 5 cannot descend and maintains its original convex state. The vehicle can enter the tidal lane normally while ensuring safety.

[0059] Reference Figure 12 A method for installing a reversing device suitable for tidal flow lanes includes the following steps:

[0060] Step 1: Fabrication of individual precast concrete bottom trenches 15: Precast concrete bottom trenches 15 are fabricated at the precast component processing plant. The length of an individual precast concrete bottom trench 15 is A=2~4m, the width is B=80~100cm, and the thickness is H=80~100cm. A rectangular prism is excavated in the middle with a length A=2~4m, a width B3=40~45cm, and a depth H2=60~80cm. A small rectangular prism is excavated on the side platform with a length A=2~4m, a width B1=20~30cm, and a depth H1=20~30cm. After the individual precast concrete bottom trenches 15 are fabricated, they are transported to the designated location for installation.

[0061] Step 2: Excavation and Cutting of Strip-Shaped Foundation Trench: First, measure and locate the strip-shaped foundation trench to be excavated between the double yellow dashed lines. The width of the strip-shaped foundation trench should be 10-20mm wider and the depth should be 10-20mm deeper than the precast concrete base trench 15. Then, use a cutting machine to cut the road surface to its full thickness, strictly controlling the depth during cutting to avoid damaging the base layer. After cutting, road surface fragments should be collected and properly disposed of, and random disposal is strictly prohibited. Finally, compact the road base layer and spread dry-mixed mortar with a water-cement ratio of 0.2 as a leveling layer, with the spreading thickness controlled within 20mm.

[0062] Step 3: Assemble the conversion device: First, install cast iron parts 21 in the middle and left end of the precast concrete bottom trough 15, and connect the second slide 7 in the middle with embedded parts 9 by bolts. Then, install the telescopic component 5, the first slide 6, and the second steel plate component 4 in sequence for a second bolt connection. Connect the liftable strip block 1 to the first steel plate component 2 by bolts. The trapezoidal steel plate 202 of the first steel plate component 2 engages with the inner groove steel plate 402 of the second steel plate component 4 and connects to the first slide 6. Install the controller 19, the fixed strip block 16, and the fixing pin 18 in sequence on the left side to complete the splicing of one conversion device. Then, install multiple conversion devices in sequence.

[0063] Step 4: Hoist the conversion device into place: According to the positioning line, vertically place the assembled double yellow dashed line warning system into the road surface groove.

[0064] Step 5: Filling road gaps: After the unit double yellow dashed line warning system is installed, single-sized crushed stone of the same width as the gap is squeezed into the joint between the road surface and the concrete bottom groove to improve the interlocking force between the road panels and enhance the load transfer performance.

[0065] In summary, this invention is applicable to various tidal phenomena, has a fixed position, and can effectively guide vehicles to drive normally according to traffic signals, preventing violations such as arbitrary lane changes, arbitrary turns, and arbitrary overtaking. It does not affect normal lane changing behavior; it does not require the participation of a zipper truck, saving costs, and is easy to install and replace.

[0066] 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 conversion device suitable for a tidal lane, comprising a conversion device body arranged in a double yellow dashed line of a road surface, characterized in that, The main body of the conversion device is located in the concrete bottom groove (15) of the road surface. The road surface includes a roadbed (14), a base course (13) located above the roadbed (14), and an asphalt surface course (12) located above the base course (13). The main body of the transformation device includes a liftable strip block (1) with a raised road surface and a fixed strip block (16). The fixed strip block (16) is connected to the concrete bottom groove (15) by a fixing pin (18). The surface of the fixed strip block (16) is provided with an opening and closing cover (17), and a controller (19) is provided inside the fixed strip block (16). The liftable strip block (1) is connected to the first steel plate assembly (2) below through a reserved hole and a nut (3). The first steel plate assembly (2) is provided with a second steel plate assembly (4) below it. The second steel plate assembly (4) is provided with a telescopic assembly (5) below it. The bottom of the telescopic assembly (5) is connected to the cast iron part (21) in the concrete bottom trench (15) through a pre-embedded part (9). The telescopic component (5) has a first sliding groove (6) above it and a second sliding groove (7) below it. The first sliding groove (6) and the second sliding groove (7) are arranged vertically and vertically. The telescopic component (5) is located between the first sliding groove (6) and the second sliding groove (7). A spring damper (11) is also provided between the first sliding groove (6) and the second sliding groove (7). The spring damper (11) is located on the left and right sides of the telescopic component (5). The telescopic assembly (5) includes a first slider (501) and a second slider (502) disposed in a first slide groove (6), and a third slider (503) and a fourth slider (504) disposed in a second slide groove (7). The first slider (501) is connected to a first connecting rod (505), the second slider (502) is connected to a second connecting rod (506), the third slider (503) is connected to a third connecting rod (507), and the fourth slider (504) is connected to a fourth connecting rod (508). The first connecting rod (505) and the second connecting rod (506) are arranged in a cross manner and are hinged at the intersection point. The third connecting rod (507) and the fourth connecting rod (508) are arranged in a cross manner and are hinged at the intersection point. The end of the first connecting rod (505) is hinged to the end of the third connecting rod (507), and the end of the second connecting rod (506) is hinged to the end of the fourth connecting rod (508). The outer sides of the first slider (501) and the second slider (502) are provided with transverse compression springs (10), the outer sides of the third slider (503) and the fourth slider (504) are provided with transverse compression springs (10), and a trapezoidal blocking block (8) is provided on the left side of the transverse compression spring (10) on the outer side of the third slider (503). The controller (19) includes a control block (1901) and a control handle (1903) located below the control block (1901). A vertical compression spring (1902) is sleeved on the control handle (1903). A heart-shaped groove (1904) is provided below the control handle (1903). A limiting rod (1905) is provided below the heart-shaped groove (1904). One end of the limiting rod (1905) is engaged with the heart-shaped groove (1904), and the other end of the limiting rod (1905) is hinged to a bearing (1906). A wedge block (1907) is connected below the bearing (1906). The wedge block (1907) can engage with the reserved gap (20) in the concrete bottom groove (15). The slope of the wedge block (1907) is the same as that of the trapezoidal blocking block (8). When the wedge block (1907) moves downward, it can make the trapezoidal blocking block (8) move to the right, thereby blocking the sliding of the third slider (503).

2. A conversion device for a tidal lane according to claim 1, characterized in that The first steel plate assembly (2) includes a trapezoidal steel plate (202) and a first welding bolt (201) connected to the trapezoidal steel plate (202). The first welding bolt (201) is vertically disposed above the trapezoidal steel plate (202) and is sleeved with a nut (3).

3. A conversion device for a tidal lane according to claim 2, characterized in that The second steel plate assembly (4) includes an inner channel steel plate (402) that is matched and connected to the trapezoidal steel plate (202), and a second welding bolt (401) that is connected to the inner channel steel plate (402). The second welding bolt (401) is vertically disposed below the inner channel steel plate (402).

4. A method of installing a conversion device for a tidal lane according to any one of claims 1 to 3, characterized in that, Includes the following steps: Step 1: Fabrication of a single precast concrete trough 15: Precast concrete troughs (15) are fabricated at the precast component processing plant. The length of a single precast concrete trough (15) is A=2~4m, the width is B=80~100cm, and the thickness is H=80~100cm. The middle is hollowed out as a cuboid with a length A=2~4m, a width B3=40~45cm, and a depth H2=60~80cm. The side platform is hollowed out as a small cuboid with a length A=2~4m, a width B1=20~30cm, and a depth H1=20~30cm. After the single precast concrete trough (15) is fabricated, it is transported to the designated location for installation. Step 2: Excavate and cut the strip-shaped foundation trench of the road surface: First, measure and locate the strip-shaped foundation trench to be excavated between the double yellow dashed lines. The width of the strip-shaped foundation trench should be 10~20mm wider than the precast concrete bottom trench (15), and the depth should be 10~20mm deeper than the precast concrete bottom trench (15). Then, use a cutting machine to cut the road surface to its full thickness. Strictly control the depth during cutting to avoid damaging the base layer. After cutting, road debris should be collected and properly disposed of; it is strictly forbidden to discard it at will. Finally, the road base should be compacted and a dry-mixed mortar with a water-cement ratio of 0.2 should be laid as a leveling layer, with the thickness controlled within 20mm. Step 3: Assemble the conversion device: First, install cast iron parts (21) in the middle and left end of the precast concrete bottom trough (15), and connect the second slide (7) in the middle with the embedded parts (9) by bolts. Then, install the telescopic component (5), the first slide (6), and the second steel plate component (4) in sequence for the second bolt connection. Connect the liftable strip block (1) with the first steel plate component (2) by bolts. The trapezoidal steel plate (202) of the first steel plate component (2) engages with the inner groove steel plate (402) of the second steel plate component (4) and connects with the first slide (6). Install the controller (19), the fixed strip block (16), and the fixing pin (18) in sequence on the left side to complete the splicing of one of the conversion devices. Then, install multiple conversion devices in sequence. Step 4: Hoist the conversion device into place: According to the positioning line, vertically place the assembled double yellow dashed line warning system into the road surface groove. Step 5: Filling the road surface gaps: After the unit double yellow dashed line warning system is installed, single-sized crushed stone of the same width as the gap is squeezed into the joint between the road surface and the concrete bottom groove to improve the interlocking force between the road panels and enhance the load transfer performance.

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