Traffic safety protection equipment and method

Abstract

This invention belongs to the field of traffic safety equipment technology, specifically a traffic safety protection device and method, including a base, support columns, a self-locking device, and a connecting device. The self-locking device mounts the support columns onto the upper surface of the base, improving the stability of the support columns. Furthermore, folding rods are hinged to the sides of the support plates between adjacent bases. Extending these folding rods allows them to work with the support columns and bases to form a guardrail, effectively improving the efficiency of guardrail installation. Connecting devices are installed on both the front and rear ends of each support column, connecting the support columns on the same base together, effectively enhancing the overall structural strength of the guardrail and simultaneously improving its stability. After road maintenance, the support columns on the base can be removed, and the folding rods can be folded together with their hinged support columns using the retraction function, effectively saving space and facilitating transportation.

Description

Technical Field

[0001] This invention belongs to the field of traffic safety equipment technology, specifically a traffic safety protection device and protection method. Background Technology

[0002] Traffic barriers are traffic safety facilities installed on the outer side of road shoulders, traffic dividers, and pedestrian curbs. They absorb collision energy by deforming themselves or allowing vehicles to climb, thereby changing the direction of travel, preventing vehicles from going off the road or entering oncoming lanes, and minimizing injury to occupants.

[0003] When maintenance or repairs are needed on parts of a road surface, or when other work requires isolating certain areas, guardrails are required. Guardrails effectively prevent pedestrians and vehicles from entering the isolated areas. However, common traffic guardrails are cumbersome and time-consuming to assemble, and cannot quickly separate the areas to be isolated. Existing guardrails that are relatively easy to install are made of plastic and are placed directly on the road surface without any connection between them. Although these guardrails can quickly separate the isolated areas, they lack connectivity and have poor stability. Therefore, a more stable and quickly installable traffic guardrail is needed. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the problems of traffic barriers not being able to be quickly assembled and not being able to promptly isolate areas to be isolated, this invention proposes a traffic safety protection device and method.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a traffic safety protection device and protection method according to the present invention includes a base, a folding rod and a support column. The base is designed in a stepped shape. Two support columns are installed on the upper surface of each base. A folding rod is hinged between the support columns above two adjacent bases.

[0006] The protective equipment also includes a self-locking device, which is installed on the upper surface of the base and is used for quick installation of the support column;

[0007] A connecting device is installed on the surfaces at both ends of the support column, and the connecting device is used to enhance the overall structural strength of the device.

[0008] Preferably, the self-locking device includes: a trapezoidal block, which is fixedly connected to the bottom of the support column, and the trapezoidal block is designed in an inverted trapezoidal shape;

[0009] The first groove is formed on the top of the base, and the first groove is designed to correspond and match the trapezoidal block;

[0010] An elastic element is located inside the sidewall of the first groove and is used to clamp the trapezoidal block.

[0011] Preferably, the bottom of the trapezoidal block is serrated, and the bottom of the first groove is designed to match the bottom of the trapezoidal block.

[0012] Preferably, the elastic element includes a rectangular groove located inside the front and rear end sidewalls of the first groove, and the length of the rectangular groove is designed to correspond to the length of the support column.

[0013] A slider, which is slidably connected inside the rectangular groove;

[0014] A spring is used to fix the slider to the sidewall of the rectangular groove.

[0015] Preferably, a reinforcing member is installed on the upper surface of the base, and the overall structure of the reinforcing member is designed in an I-shape.

[0016] Preferably, the reinforcing component includes: a sliding groove, the sliding groove being formed on the upper surface of the base, and the sliding groove being designed to communicate with the rectangular groove;

[0017] The movable plate has a C-shaped structure design. The bottom of the left and right ends of the movable plate is fixedly connected to the middle of the upper surface of the slider. A circular hole is opened in the middle of the movable plate. Two movable plates are respectively arranged above the same base.

[0018] A bolt, which passes through a circular hole in the middle of the movable plate;

[0019] A threaded tube is located between two adjacent bolts and is rotatably connected to the bolts. The threaded tube is fixed in the middle of the gap between two adjacent support columns above the base.

[0020] A blocking ring is located on the bolt between the moving plate and the threaded tube, and the distance from the moving plate to the blocking ring is equal to the distance the slider moves to contact the surface of the support column.

[0021] Preferably, fasteners are fixedly connected to the surface of the movable plate near the support column.

[0022] Preferably, the fastener includes a cylinder, which is fixedly connected to the surface of the movable plate near the support column, and the length of the cylinder is designed to match the moving distance of the slider.

[0023] A circular groove is formed on the surface of the support column near the movable plate, and the circular groove is designed to correspond and match the column.

[0024] Preferably, the second groove is formed on the front and rear end surfaces of the support column above the same base, and the second grooves on the surface of the support column on the same base are combined to form an L-shaped structure.

[0025] A telescopic rod is fixedly connected to the side wall of the second groove, and a tension spring is fixedly connected between the top end of the telescopic rod and the bottom end inside the telescopic rod.

[0026] The stop block is rotatably connected to the top of the telescopic rod, and the stop block is engaged in the second groove in the vertical direction on the surface of the adjacent support column.

[0027] A reflective sticker is attached between two adjacent second grooves and is used to remind vehicles to avoid driving over the guardrail.

[0028] Preferably, the traffic safety protection method of the present invention is applicable to the above-mentioned traffic safety protection equipment, and the operation steps of the protection method are as follows;

[0029] S1. First, place the base evenly in the area to be isolated, insert the support column into the base along the first groove, and then stretch and unfold the folding rod to form a guardrail. Use the assembled guardrail to isolate and separate the area to be isolated, thereby preventing pedestrians and vehicles from entering the isolation area.

[0030] S2. Then rotate the bolt to drive the fastener to further fix the support column, pull the telescopic rod to lengthen, so that the stop block at the top of the telescopic rod is located inside the second groove in the vertical direction of the adjacent support column;

[0031] S3. After the guardrail is used, rotate the bolt in the opposite direction to shorten the distance between the blocking ring and the moving plate. When the surface of the blocking ring is in contact with the surface of the moving plate, continue to rotate the bolt in the opposite direction so that the blocking ring drives the moving plate and the slider to move synchronously into the rectangular groove. When the slider enters the rectangular groove, then remove the support column together with the trapezoidal block from the base. After the support column is removed, retract the folding rod and place it together.

[0032] The beneficial effects of this invention are as follows:

[0033] 1. The traffic safety protection equipment and method of the present invention comprises a base, support columns, a self-locking device, and a connecting device. The self-locking device, installed on the upper surface of the base, allows the support columns to stand upright on the upper surface of the base, improving the stability of the support columns. Furthermore, folding rods are hinged to the sides of the support plates between adjacent bases. Extending these folding rods allows them to work with the support columns and bases to form a guardrail, effectively improving the efficiency of guardrail installation. Connecting devices are installed on both the front and rear ends of each support column, connecting the support columns on the same base together, effectively enhancing the overall structural strength of the guardrail and simultaneously improving its stability.

[0034] 2. The traffic safety protection equipment and method of the present invention comprises a sliding groove, a rectangular groove, a movable plate, a slider, and a circular hole; by rotating the tail of the bolt, the movable plate drives the slider to move further towards the support column, so that the surface of the slider fully fits the surface of the support column, further fixing the support column. When it is necessary to disassemble the guardrail, a blocking ring is fixedly connected to one end of the bolt. By rotating the bolt in the opposite direction, the distance between the blocking ring and the movable plate is shortened. After the surface of the blocking ring fits the surface of the movable plate, the bolt is rotated in the opposite direction again, so that the blocking ring drives the movable plate and the slider to move synchronously into the rectangular groove, making it easy for the support column to be removed from the first groove. Attached Figure Description

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] Figure 1 This is the front view of the present invention;

[0037] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0038] Figure 3 yes Figure 1 Enlarged view of a section at point B in the middle;

[0039] Figure 4 This is a schematic diagram showing the connection between the support column and the trapezoidal block;

[0040] In the figure: base 1, first groove 11, slide 12, slider 13, rectangular groove 14, spring 15, support column 2, second groove 21, telescopic rod 22, stop block 23, circular groove 24, trapezoidal block 25, folding rod 3, moving plate 4, threaded pipe 41, bolt 42, cylinder 43. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0042] like Figures 1 to 3 As shown in the figure, the traffic safety protection equipment and method of the present invention includes a base 1, a folding rod 3 and a support column 2. The base 1 is designed in a stepped shape, and two support columns 2 are installed on the upper surface of each base 1. A folding rod 3 is hinged between the support columns 2 above two adjacent bases 1.

[0043] The protective equipment also includes a self-locking device, which is installed on the upper surface of the base 1 and is used to quickly install the support column 2;

[0044] A connecting device is installed on the surfaces of the front and rear ends of the support column 2, and the connecting device is used to enhance the overall structural strength of the device.

[0045] Traffic barriers are ubiquitous during operation. They are used when maintenance or repairs are needed on sections of roads, or when other work requires isolating certain areas. Barriers effectively prevent pedestrians and vehicles from entering the isolated areas. However, common traffic barriers are cumbersome and time-consuming to assemble, and cannot promptly isolate the areas to be isolated. While traffic cones are simple and convenient for road or area isolation, large gaps exist between adjacent cones, and cones can be easily moved. Therefore, cones are not effective in preventing pedestrians and vehicles from forcibly crossing the isolated areas. By installing a self-locking device on the upper surface of the base 1, the support column 2 is installed on the base. The upper surface of the base 1 enhances the stability of the support column 2 installed above the base 1. Furthermore, a folding rod 3 is hinged between adjacent support columns 2. Extending the folding rod 3 allows it to work with the support column 2 and base 1 to form a guardrail, effectively improving the efficiency of guardrail installation. Connecting devices are installed on both the front and rear ends of each support column 2, connecting the support columns 2 above the same base 1 together, effectively strengthening the overall structural strength of the guardrail and simultaneously improving its stability. After road maintenance, the support columns 2 above the base 1 can be removed, and the folding rod 3 can be folded together with its hinged support column 2 using its retraction function, effectively saving space and facilitating transportation.

[0046] As one embodiment of the present invention, the self-locking device includes: a trapezoidal block 25, which is fixedly connected to the bottom of the support column 2, and the trapezoidal block 25 is designed in an inverted trapezoidal shape;

[0047] The first groove 11 is formed on the top of the base 1, and the first groove 11 is designed to correspond and match the trapezoidal block 25.

[0048] An elastic element is located inside the side wall of the first groove 11, and the elastic element is used to clamp the trapezoidal block 25.

[0049] During operation, a trapezoidal block 25 is fixedly connected to the bottom of the support column 2. The trapezoidal block 25 is designed in an inverted trapezoidal shape, which facilitates the quick insertion of the bottom end of the trapezoidal block 25 into the first groove 11, saving assembly time and improving installation efficiency. An elastic element is installed inside the side wall of the first groove 11. In the initial state, the elastic element is extended and located at the upper end of the first groove 1. When the trapezoidal block 25 enters the first groove 11, the elastic element is forced to move towards the side wall of the first groove 11 until the bottom of the trapezoidal block 25 contacts the bottom of the first groove 11. At this time, the height of the trapezoidal block 25 is less than the height of the elastic element. The elastic element moves towards the middle of the first groove 11 and fits against the front and rear end surfaces of the support column 2, locking the support column 2 inside the first groove 11 and effectively preventing the support column 2 from detaching from the first groove 11.

[0050] In one embodiment of the present invention, the bottom of the trapezoidal block 25 is serrated, and the bottom of the first groove 11 is designed to match the bottom of the trapezoidal block 25.

[0051] During operation, to prevent the trapezoidal block 25 from wobbling inside the first groove 11 and affecting the overall stability of the guardrail, the bottom of the trapezoidal block 25 is designed with a sawtooth structure, and the bottom of the first groove 11 is designed to match the bottom of the trapezoidal block 25. This allows the bottom of the trapezoidal block 25 to fit together with the bottom of the first groove 11, preventing the trapezoidal block 25 from wobbling inside the first groove 11. This effectively enhances the stability of the support column 2 above the base 1.

[0052] In one embodiment of the present invention, the elastic element includes: a rectangular groove 14, the rectangular groove 14 being located inside the front and rear end sidewalls of the first groove 11, and the length of the rectangular groove 14 being designed to correspond to the length of the support column 2;

[0053] Slider 13, which is slidably connected to the inside of the rectangular groove 14;

[0054] Spring 15, the slider 13 is fixedly connected to the side wall of the rectangular groove 14 by spring 15;

[0055] During operation, a rectangular groove 14 is provided in the side wall of the first groove 11, and a slider 13 is slidably connected inside the rectangular groove 14. The slider 13 is fixedly connected to the side wall of the rectangular groove 14 by a spring 15. When the trapezoidal block 25 enters the first groove 11, the slider 13 is forced to move inward toward the rectangular groove 14 until the bottom of the trapezoidal block 25 contacts the bottom of the first groove 11. At this time, the height of the trapezoidal block 25 is less than the height of the slider 13. Then, the slider 13 moves toward the middle of the first groove 11 by the elastic force of the spring 15 and fits against the surface of the support column 2 near the end of the slider 13, thus restricting the trapezoidal block 25 inside the first groove 11 and preventing the trapezoidal block 25 from falling out of the first groove 11, thereby effectively improving the overall structural strength of the guardrail.

[0056] As one embodiment of the present invention, a reinforcing member is installed on the upper surface of the base 1, and the overall structure of the reinforcing member is designed in the shape of an I-beam.

[0057] During operation, two support columns 2 are installed above each base 1. To improve the stability of the support columns 2 above the base 1, a reinforcing member is installed on the upper surface of the base 1. The reinforcing member drives the slider 13 to clamp the support column 2, thereby effectively improving the stability of the support column 2 above the base 1. At the same time, by using the reinforcing member, the slider 13 can also be driven to move into the rectangular groove 14, making it easy to remove the support column 2 from above the base 1.

[0058] In one embodiment of the present invention, the reinforcement includes: a sliding groove 12, which is formed on the upper surface of the base 1 and is designed to communicate with the rectangular groove 14;

[0059] The movable plate 4 has a C-shaped structure. The bottom of the left and right ends of the movable plate 4 is fixedly connected to the middle of the upper surface of the slider 13. A round hole is opened in the middle of the movable plate 4. Two movable plates 4 are respectively arranged above the same base 1.

[0060] Bolt 42, the bolt 42 passes through the circular hole in the middle of the movable plate 4;

[0061] Threaded tube 41, the threaded tube 41 is located between two adjacent bolts 42, the threaded tube 41 is rotatably connected to the bolts 42, and the threaded tube 41 is fixed in the middle of the gap between two adjacent support columns 2 above the base 1.

[0062] A blocking ring is located on a bolt 42 between a movable plate 4 and a threaded tube 41. The distance from the movable plate 4 to the blocking ring is equal to the distance from which the slider 13 moves to contact the surface of the support column 2.

[0063] During operation, due to the interconnected design of the slide groove 12 and the rectangular groove 14, the C-shaped design of the movable plate 4 allows its left and right ends to pass through the slide groove 12 and be fixedly connected to the slider 13 inside the rectangular groove 14. This enables the slider 13 to move synchronously with the movable plate 4 during movement. A circular hole is provided in the middle of the movable plate 4, with a diameter larger than the diameter of the thread at the end of the bolt 42 but smaller than the diameter of the tail of the bolt 42. This allows the bolt 42 to pass through the circular hole and rotately connect with the threaded tube 41 above the base 1, thus not affecting the synchronous movement of the slider 13 and the movable plate 4 during movement. When the trapezoidal block 25 is inserted into the first groove 11, the slider 13 moves towards the support column 2. During this movement, the slider 13 drives the movable plate 44 to move synchronously until the surface of the slider 13 is in contact with the surface of the support column 2. Through the threaded connection between bolt 42 and threaded pipe 41, rotate the tail of bolt 42 to move bolt 42 in the direction of threaded pipe 41. During the movement, bolt 42 drives moving plate 4 and slider 13 to move further in the direction of support column 2, so that the surface of slider 13 fully fits the surface of support column 2, further fixing support column 2. When it is necessary to disassemble the guardrail, a blocking ring is fixedly connected to one end of bolt 42. The blocking ring is located on bolt 42 between moving plate 4 and threaded pipe 41. Rotate bolt 42 in the opposite direction to shorten the distance between blocking ring and moving plate 4. After the surface of blocking ring fits the surface of moving plate 4, continue to rotate bolt 42 in the opposite direction, so that blocking ring drives moving plate 4 and slider 13 to move synchronously into rectangular groove 14, making it easy for support column 2 to be removed from the first groove 11.

[0064] In one embodiment of the present invention, fasteners are fixedly connected to one end of the movable plate 4 near the support column 2.

[0065] During operation, in order to improve the overall structural strength of the guardrail, fasteners are fixedly connected to the surface of the moving plate near the support column 2. The two support columns 2 above the base 1 are fastened together using the fasteners, which can effectively improve the overall structural strength of the guardrail.

[0066] In one embodiment of the present invention, the fastener includes: a cylinder 43, which is fixedly connected to the surface of the movable plate 4 near the support column 2, and the length of the cylinder 43 is designed to match the moving distance of the slider 13.

[0067] A circular groove 24 is formed on the surface of the support column 2 near the movable plate 4, and the circular groove 24 is designed to match the circular column 43.

[0068] During operation, a cylinder 43 is fixedly connected to the surface of the moving plate 4 near the support column 2. A circular groove 24 corresponding to the cylinder 43 is opened on the surface of the support column 2 near the moving plate 4. As the moving plate 4 moves towards the support column 2 by rotating the bolt 42, the cylinder 43 is simultaneously fully fitted into the circular groove 24, which further improves the stability of the support column 2 above the base 1 and enhances the overall structural strength of the guardrail.

[0069] As one embodiment of the present invention, the second groove 21 is formed on the front and rear end surfaces of the support column 2 above the same base 1, and the second grooves 21 on the surface of the support column 2 on the same base 1 are combined to form an L-shaped structure.

[0070] Telescopic rod 22, which is fixedly connected to the side wall of the second groove 21, and a tension spring is fixedly connected between the top end and the bottom end of the telescopic rod 22, the tension spring being located inside the telescopic rod 22;

[0071] The top end of the telescopic rod 22 is rotatably connected to the stop block 23, which is engaged in the vertical portion of the second groove 21 on the surface of the adjacent support column 2.

[0072] Reflective stickers are attached between two adjacent second grooves 21 and are used to remind vehicles to avoid driving over guardrails.

[0073] During operation, to improve the connectivity between adjacent support columns 2, a second groove 21 is provided on the surface of the support column 2 near the moving plate 4. A telescopic rod 22 is fixedly connected inside the second groove 21, and a stop 23 is rotatably connected to the top of the telescopic rod 22. After the support column 2 is installed, the telescopic rod 22 inside the second groove 21 is stretched, so that the stop 23 at the top of the telescopic rod 22 is located inside the second groove 21 in the vertical direction of the adjacent support column 2. A tension spring is fixedly connected between the top and bottom of the telescopic rod 22, and the tension of the spring is used to connect the support columns 2 above the same base 1 together. With the help of fasteners, the connectivity between adjacent support columns 2 in the upper part of the support column 2 is improved, thereby enhancing the overall structural strength of the guardrail. By sticking reflective stickers between adjacent second grooves 21, when the vehicle is driving at night, the headlights shine on the reflective stickers, and the reflective properties of the reflective stickers are used to remind the vehicle to avoid the guardrail, thereby effectively improving the safety performance of the vehicle when driving at night.

[0074] As one embodiment of the present invention, a traffic safety protection method is provided, applicable to the aforementioned traffic safety protection equipment. The operation steps of the protection method are as follows:

[0075] S1. First, place the base 1 evenly in the area to be isolated, insert the support column 2 into the base 1 along the first groove 11, and then stretch and unfold the folding rod 3 to form a guardrail. Use the assembled guardrail to isolate and separate the area to be isolated, thereby preventing pedestrians and vehicles from entering the isolation area.

[0076] S2. Then rotate the bolt 42 to drive the fastener to further fix the support column 2, pull the telescopic rod 22 to lengthen, so that the stop block 23 at the top of the telescopic rod 22 is located inside the second groove 21 in the vertical direction of the adjacent support column 2;

[0077] S3. After the guardrail is used, rotate the bolt 42 in the opposite direction to shorten the distance between the blocking ring and the moving plate 4. After the surface of the blocking ring is in contact with the surface of the moving plate 4, continue to rotate the bolt 42 in the opposite direction so that the blocking ring drives the moving plate 4 and the slider 13 to move synchronously into the rectangular groove 14. After the slider 13 enters the rectangular groove 14, the support column 2 together with the trapezoidal block 25 is taken out from the base 1. After being taken out, the support column 2 retracts the folding rod 3 and places it together.

Claims

1. A traffic safety protection device, comprising a base, a folding rod, and support columns, wherein the base is designed in a stepped shape, and two support columns are mounted on the upper surface of each base, and a folding rod is hinged between the support columns above two adjacent bases, characterized in that: Protective equipment also includes: A self-locking device is installed on the upper surface of the base and is used for quick installation of the support column; A connecting device is installed on the surfaces at both ends of the support column, and the connecting device is used to enhance the overall structural strength of the device. The self-locking device includes: A trapezoidal block, which is fixedly connected to the bottom of the support column, and the trapezoidal block is designed as an inverted trapezoid; The first groove is formed on the top of the base, and the first groove is designed to correspond and match the trapezoidal block; An elastic element is located inside the sidewall of the first groove and is used to clamp the trapezoidal block. The elastic element includes: A rectangular groove is located inside the front and rear end sidewalls of the first groove, and the length of the rectangular groove is designed to correspond to the length of the support column. A slider, which is slidably connected inside the rectangular groove; A spring is used to fix the slider to the sidewall of the rectangular groove. The upper surface of the base is equipped with a reinforcing member, the overall structure of which is an I-shaped design; The reinforcement includes: A sliding groove is formed on the upper surface of the base, and the sliding groove is designed to communicate with the rectangular groove; The movable plate has a C-shaped structure design. The bottom of the left and right ends of the movable plate is fixedly connected to the middle of the upper surface of the slider. A circular hole is opened in the middle of the movable plate. Two movable plates are respectively arranged above the same base. Bolts, the bolts passing through a circular hole in the middle of the movable plate; A threaded tube is located between two adjacent bolts, the threaded tube is rotatably connected to the bolts, and the threaded tube is fixed in the middle of the gap between two adjacent support columns above the base; A blocking ring is located on the bolt between the movable plate and the threaded tube, and the distance from the movable plate to the blocking ring is equal to the distance the slider moves to contact the surface of the support column; Fasteners are fixedly connected to one end of the movable plate near the support column. Fasteners include: A cylinder is fixedly connected to the surface of the movable plate near the support column, and the length of the cylinder is designed to match the moving distance of the slider. A circular groove is formed on the surface of the support column near the movable plate, and the circular groove is designed to match the circular column. The connecting device includes: The second groove is formed on the front and rear end surfaces of the support column above the same base. The second grooves on the surface of the support column on the same base are combined to form an L-shaped structure. A telescopic rod is fixedly connected to the side wall of the second groove, and a tension spring is fixedly connected between the top end and the bottom end of the telescopic rod, the tension spring being located inside the telescopic rod; The stop block is rotatably connected to the top of the telescopic rod, and the stop block is engaged in the vertical portion of the second groove on the surface of the adjacent support column; After the support column is installed, the telescopic rod inside the second groove is extended so that the stop block at the top of the telescopic rod is located inside the second groove in the vertical direction of the adjacent support column. A tension spring is fixedly connected between the top and bottom of the telescopic rod. The tension of the tension spring is used to connect the support columns above the same base together. With the help of fasteners, the connection between adjacent support columns in the upper part of the support column is improved.

2. The traffic safety protection device according to claim 1, characterized in that: The bottom of the trapezoidal block is serrated, and the bottom of the first groove is designed to match the bottom of the trapezoidal block.

3. A traffic safety protection method, characterized in that: The protection method is applicable to a traffic safety protection device according to any one of claims 1-2, and the operation steps of the protection method are as follows: S1. First, place the base evenly in the area to be isolated, insert the support column into the base along the first groove, and then stretch and unfold the folding rod to form a guardrail. Use the assembled guardrail to isolate and separate the area to be isolated, thereby preventing pedestrians and vehicles from entering the isolation area. S2. Then rotate the bolt to drive the fastener to further fix the support column, pull the telescopic rod to lengthen, so that the stop block at the top of the telescopic rod is located inside the second groove in the vertical direction of the adjacent support column; S3. After the guardrail is used, rotate the bolt in the opposite direction to shorten the distance between the blocking ring and the moving plate. After the surface of the blocking ring is in contact with the surface of the moving plate, continue to rotate the bolt in the opposite direction so that the blocking ring drives the slider of the moving plate to move synchronously into the rectangular groove. After the slider enters the rectangular groove, remove the support column together with the trapezoidal block from the base. After the support column is removed, retract the folding rod and place it together.

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