A PVC guardrail that is convenient for disassembly and assembly and can be freely bent

Abstract

The present invention belongs to the technical field of guardrails and provides a PVC guardrail that is convenient for disassembly, assembly, and free bending. It includes at least two groups of mounting cylinders, a limiting rod, and a guardrail plate. A fixed seat is fixedly installed at the bottom of the mounting cylinder. A rotating shaft is rotatably installed in the mounting cylinder. First steel wires are wound around both the upper and lower ends of the rotating shaft. The movable ends of the first steel wires extend out of the mounting cylinder, and hooks are fixedly installed at the movable ends of the first steel wires. A connecting ring is fixedly installed on the back side of the side of the mounting cylinder corresponding to the position where the first steel wires extend. Compared with the prior art, the beneficial effects of the present invention are as follows: By changing the extending direction of the first steel wires through the limiting rod, the first steel wires are distributed along a set trajectory. Then, the guardrail plate is installed on the first steel wires, enabling the guardrail to be freely bent and arranged along the set trajectory, improving the flexibility of the guardrail setting and enhancing the practicality of the device.

Description

Technical Field

[0001] The present invention belongs to the technical field of guardrails, and particularly relates to a PVC guardrail that is easy to disassemble and assemble and can be freely bent. Background Art

[0002] PVC guardrails are mainly used in some sites such as roadblocks, villa fences or roadside fences. They have excellent characteristics such as good steel plasticity, high strength, and corrosion resistance, and are widely used. In addition, PVC guardrails also have the characteristics of safety, beauty, environmental protection, and long service life.

[0003] Most of the existing guardrails are integral straight guardrails. The length of the guardrail is set. Therefore, in special cases where the guardrail needs to be bent at a large angle and the trajectory changes frequently, it is difficult to bend the existing guardrail due to the length and shape settings, making it difficult for the traditional guardrail to be arranged according to the set guardrail trajectory and unable to meet the usage requirements in special situations, with poor flexibility in use. Thus, a guardrail that can be freely bent is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a PVC guardrail that is easy to disassemble and assemble and can be freely bent, aiming to solve the technical problem that it is difficult for the guardrail in the prior art to be arranged according to the set bent guardrail trajectory.

[0005] The present invention is realized as follows. A PVC guardrail that is easy to disassemble and assemble and can be freely bent includes at least two groups of mounting cylinders, limiting rods, and guardrail plates. A fixed seat is fixedly installed at the bottom of the mounting cylinder. A rotating shaft is rotatably installed in the mounting cylinder. First steel wires are wound around both the upper and lower ends of the rotating shaft. The movable end of the first steel wire extends out of the mounting cylinder, and a hook is fixedly installed at the movable end of the first steel wire. A connecting ring is fixedly installed on the back side of the mounting cylinder corresponding to the position where the first steel wire extends out. A worm gear is fixedly installed at the top of the rotating shaft, and the worm gear meshes with a worm rotatably installed on the mounting cylinder. During use, the hook is connected to the connecting ring on another group of mounting cylinders, and the first steel wires are distributed on the horizontal plane. Multiple groups of guardrail plates are provided and arranged on the first steel wires. Multiple groups of limiting rods are provided. A counterweight base is fixedly installed at the bottom of the limiting rod. The limiting rod is used in cooperation with the first steel wire and is used to change the direction of the first steel wire.

[0006] Further technical solution: Multiple groups of baffles are fixedly installed on the rotating shaft on both sides of the position where the first steel wire is wound.

[0007] Further technical solution: An L-shaped upper limit plate is fixedly installed at one end of the guardrail plate. A support plate is fixedly installed at the end of the guardrail plate away from the upper limit plate. An adjusting screw rod is threadedly installed on the support plate. The end of the adjusting screw rod is rotatably connected to an L-shaped lower limit plate. The lower limit plate is in sliding contact with the guardrail plate. The openings of the lower limit plate and the upper limit plate face each other. The guardrail plate is installed on the first steel wire rope through the upper limit plate and the lower limit plate.

[0008] Further technical solution: Two groups of L-shaped support plates are fixedly installed on the limit rod. The heights of the two groups of support plates are the same as the height where the first steel wire rope is located and are used to support the first steel wire rope. A pressing screw for fixing the first steel wire rope is threadedly installed on the support plate.

[0009] Further technical solution: An installation groove is fixedly installed at the top of the installation cylinder. Two installation cylinders are fixedly installed with a U-shaped bracket through the installation groove. Multiple first sliders are slidably installed on the horizontal section of the bracket. An I-shaped cross plate is slidably installed on the first slider. The cross plate is perpendicular to the horizontal section of the bracket and a second slider is slidably installed on the cross plate. A pressing cylinder for cooperating with the limit rod is arranged on the second slider.

[0010] Further technical solution: A threaded cylinder is fixedly installed on the bottom surface of the second slider. A pressing screw rod is threadedly connected in the threaded cylinder. The pressing cylinder is fixedly installed at the end of the pressing screw rod.

[0011] Further technical solution: A card slot for installing the first slider is opened at one end of the horizontal section of the bracket.

[0012] Further technical solution: A lifting cylinder is threadedly installed on the limit rod. A base plate is rotatably installed on the lifting cylinder. A through groove is opened on the base plate and a sliding sleeve is slidably installed on the base plate. A second steel wire rope is fixedly connected to the sliding sleeve. The end of the second steel wire rope away from the sliding sleeve is fixedly installed with a U-shaped connecting plate. A connecting screw is threadedly connected to the side wall of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. Connect adjacent two groups of installation cylinders through the first steel wire rope. Place a set number of limiting rods at the set positions through the counterweight bases according to the actual usage requirements of the guardrail. Change the extension direction of the first steel wire rope through the limiting rods so that the first steel wire rope is distributed along the set track. Then install the guardrail plate on the first steel wire rope. By changing the extension direction of the first steel wire rope through the limiting rods, the first steel wire rope is distributed along the set track. Then install the guardrail plate on the first steel wire rope, enabling the guardrail to be freely bent and arranged along the set track. Subsequently, remove the fixing screws that fix the first steel wire rope to re-adjust the positions of the limiting rods. By coordinating the winding, releasing of the first steel wire rope and the increase or decrease in the number of limiting rods, the bending track of the first steel wire rope can be flexibly adjusted, improving the flexibility of the guardrail setting and the practicality of the device.

[0015] 2. After the guardrail is set up, install the first sliders corresponding to the number of limiting rods onto the horizontal section of the bracket through the card slots. According to the positions of the limiting rods, adjust the positions of the first sliders, the cross plate and the second sliders so that the pressing cylinder moves directly above the corresponding limiting rod. Fix the positions of the first sliders, the cross plate and the second sliders through the fixing screws. Then rotate the pressing cylinder. Under the cooperation of the pressing screw rod and the threaded cylinder, the pressing cylinder moves downward and abuts against the top of the limiting rod. The top of the limiting rod enters the pressing cylinder, thereby applying a downward pressure on the limiting rod through the pressing cylinder and restricting the tilting movement of the limiting rod, improving the stability of the limiting rod, and thus ensuring that the first steel wire rope is always distributed along the set track and guaranteeing the stability of the railing.

[0016] 3. After the limiting rod is strengthened, rotate the lifting cylinder to make it move downward. Then connect the connecting plate to the area between two groups of guardrail plates on the first steel wire rope and fix it through the connecting screws. After the two connecting plates are connected to the first steel wire rope on both sides of the limiting rod, rotate the lifting cylinder to make it move upward until the second steel wire rope is straightened. Apply an upward pulling force on the first steel wire rope through the second steel wire rope, and the pulling force is transmitted to the limiting rod, thereby preventing the weight of the guardrail plate from causing the first steel wire rope to bend and deform, and further improving the stability and service life of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the installation cylinder in the present invention.

[0019] Figure 3 It is a cross-sectional structure schematic diagram of the installation cylinder in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the guardrail plate in the present invention.

[0021] Figure 5This is a schematic structural diagram of the bracket in the present invention.

[0022] Figure 6 It is Figure 5 an enlarged schematic diagram of area A1 in

[0023] Figure 7 It is Figure 5 an enlarged schematic diagram of area A2 in

[0024] In the attached drawings: 1. Installation cylinder; 2. Fixed seat; 3. Rotating shaft; 4. Baffle; 5. Worm gear; 6. Worm; 7. First steel wire rope; 8. Hook; 9. Connecting ring; 10. Installation groove; 11. Guardrail plate; 12. Upper limit plate; 13. Support plate; 14. Adjusting screw; 15. Lower limit plate; 16. Limit rod; 17. Counterweight base; 18. Support plate; 19. Compression screw; 20. Bracket; 21. First slider; 22. Cross plate; 23. Second slider; 24. Threaded cylinder; 25. Pressing screw rod; 26. Pressing cylinder; 27. Lifting cylinder; 28. Substrate; 29. Sliding sleeve; 30. Through groove; 31. Second steel wire rope; 32. Connecting plate; 33. Connecting screw; 34. Card slot. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following describes the specific implementation of the present invention in detail with specific embodiments.

[0027] Such as Figures 1 - 4As shown in the figure, a PVC guardrail provided by the present invention is easy to disassemble and assemble and freely bend, including at least two groups of mounting cylinders 1, limiting rods 16 and guardrail plates 11. A fixed seat 2 is fixedly installed at the bottom of the mounting cylinder 1. A rotating shaft 3 is rotatably installed in the mounting cylinder 1. First steel wires 7 are wound around the upper and lower ends of the rotating shaft 3. The movable ends of the first steel wires 7 extend out of the mounting cylinder 1 and hooks 8 are fixedly installed at the movable ends of the first steel wires 7. A connecting ring 9 is fixedly installed on the back side of the side surface of the mounting cylinder 1 corresponding to the position where the first steel wire 7 extends out. Multiple groups of baffles 4 are fixedly installed on the rotating shaft 3 on both sides of the winding position of the first steel wire 7. A worm gear 5 is fixedly installed at the top of the rotating shaft 3. The worm gear 5 is engaged with a worm 6 rotatably installed on the mounting cylinder 1. During use, the hook 8 is connected to the connecting ring 9 on another group of mounting cylinders 1 and the first steel wires 7 are distributed on the horizontal plane. Multiple groups of guardrail plates 11 are provided and arranged on the first steel wires 7. An L-shaped upper limiting plate 12 is fixedly installed at one end of the guardrail plate 11. A support plate 13 is fixedly installed at the end of the guardrail plate 11 away from the upper limiting plate 12. An adjusting screw 14 is threadedly installed on the support plate 13. The end of the adjusting screw 14 is rotatably connected to an L-shaped lower limiting plate 15. The lower limiting plate 15 is in sliding contact with the guardrail plate 11. The lower limiting plate 15 and the upper limiting plate 12 have opposite openings. The guardrail plate 11 is installed on the first steel wire 7 through the upper limiting plate 12 and the lower limiting plate 15. Multiple groups of limiting rods 16 are provided. A counterweight base 17 is fixedly installed at the bottom of the limiting rod 16. The limiting rod 16 is used in cooperation with the first steel wire 7 and is used to change the direction of the first steel wire 7. Two groups of L-shaped support plates 18 are fixedly installed on the limiting rod 16. The heights of the two groups of support plates 18 are the same as the height where the first steel wire 7 is located and are used to support the first steel wire 7. A pressing screw 19 for fixing the first steel wire 7 is threadedly installed on the support plate 18.

[0028] In actual application of this embodiment, a set number of mounting cylinders 1 are fixedly installed on the ground at a set distance. The worm 6 is rotated through the handle, and the worm 6 drives the rotating shaft 3 to rotate through the engaged worm wheel 5 to release the first steel wire rope 7. The staff holds the hook 8 and pulls the first steel wire rope 7 to move and connects the hook 8 with the connecting ring 9 on the adjacent mounting cylinder 1. A set number of limiting rods 16 are placed at the set position through the counterweight base 17 according to the actual use requirements of the guardrail, and the first steel wire rope 7 is passed through the support plate 18. Then, the rotating shaft 3 is rotated in the reverse direction to tension the first steel wire rope 7, and the first steel wire rope 7 is wound at the set position through the baffle 4, so that the first steel wire rope 7 is in a straight and non-tensioned state. At this time, the first steel wire rope 7 is fixed to the support plate 18 through the compression screw 19. At this time, the setting of the first steel wire rope 7 is completed, and the first steel wire rope 7 is supported by the support plate 18. Then, the guardrail plate 11 is hung on the upper first steel wire rope 7 through the upper limiting plate 12. Then, the adjusting screw rod 14 is rotated to make the lower limiting plate 15 move upward to abut against the lower first steel wire rope 7, and the guardrail plate 11 can be fixedly installed through the upper limiting plate 12 and the lower limiting plate 15. Installation can be carried out according to the set interval. During subsequent disassembly, only the adjusting screw rod 14 needs to be rotated in the reverse direction to quickly disassemble. The extension direction of the first steel wire rope 7 is changed by the limiting rod 16, so that the first steel wire rope 7 is distributed according to the set track. Then, the guardrail plate 11 is installed on the first steel wire rope 7, so that the guardrail can be freely bent and arranged according to the set track. Subsequently, the fixing of the first steel wire rope 7 by the compression screw 19 is released, and the position of the limiting rod 16 can be readjusted. By cooperating with the winding, release of the first steel wire rope 7 and the increase and decrease of the number of limiting rods 16, the bending track of the first steel wire rope 7 can be flexibly adjusted, improving the flexibility of the guardrail setting and the practicability of the device.

[0029] As Figures 1 - 7 shown, a PVC guardrail that is easy to disassemble and assemble and can be freely bent provided by the present invention. An installation groove 10 is fixedly installed at the top of the mounting cylinder 1. Two mounting cylinders 1 are fixedly installed with a U-shaped bracket 20 through the installation groove 10. A plurality of first sliders 21 are slidably installed on the horizontal section of the bracket 20. A horizontal plate 22 with an I-shaped structure is slidably installed on the first slider 21. The horizontal plate 22 is perpendicular to the horizontal section of the bracket 20 and a second slider 23 is slidably installed on the horizontal plate 22. A pressing cylinder 26 that cooperates with the limiting rod 16 is arranged on the second slider 23.

[0030] A threaded cylinder 24 is fixedly installed on the bottom surface of the second slider 23. A pressing screw rod 25 is in threaded connection with the threaded cylinder 24. The pressing cylinder 26 is fixedly installed at the end of the pressing screw rod 25.

[0031] A card slot 34 for installing the first slider 21 is opened at one end of the horizontal section of the bracket 20.

[0032] In actual application of this embodiment, after the guardrail is set up, the bracket 20 is installed in the installation groove 10 and fixed by fixing screws. Then, the first sliders 21 corresponding to the number of the limiting rods 16 are installed on the horizontal section of the bracket 20 through the card slots 34. According to the position of the limiting rods 16, the positions of the first sliders 21, the cross plate 22 and the second sliders 23 are adjusted so that the pressing cylinder 26 moves to directly above the corresponding limiting rod 16. The positions of the first sliders 21, the cross plate 22 and the second sliders 23 are fixed by fixing screws. Then, the pressing cylinder 26 is rotated. Under the cooperation of the pressing screw rod 25 and the threaded cylinder 24, the pressing cylinder 26 moves downward and abuts against the top of the limiting rod 16. The top of the limiting rod 16 enters the pressing cylinder 26, so that a downward pressure is applied to the limiting rod 16 through the pressing cylinder 26 to limit the tilting movement of the limiting rod 16, improve the stability of the limiting rod 16, and thus ensure that the first steel wire rope 7 is always distributed on the set track, and ensure the stability of the railing.

[0033] As Figure 7 shown, a PVC guardrail that is convenient for disassembly, assembly and free bending provided by the present invention is provided. An elevating cylinder 27 is threadedly installed on the limiting rod 16. A base plate 28 is rotatably installed on the elevating cylinder 27. A through groove 30 is formed on the base plate 28 and a sliding sleeve 29 is slidably installed on the base plate 28. A second steel wire rope 31 is fixedly connected to the sliding sleeve 29. One end of the second steel wire rope 31 far from the sliding sleeve 29 is fixedly installed with a U-shaped connecting plate 32. A connecting screw 33 is threadedly connected to the side wall of the connecting plate 32.

[0034] In actual application of this embodiment, after the limiting rod 16 is reinforced, the elevating cylinder 27 is rotated to move it downward. Then, the connecting plate 32 is connected to the area between two groups of guardrail plates 11 on the first steel wire rope 7 and fixed by the connecting screw 33. After the two groups of connecting plates 32 are connected to the first steel wire ropes 7 on both sides of the limiting rod 16, the elevating cylinder 27 is rotated to move it upward until the second steel wire rope 31 is straightened. An upward pulling force is applied to the first steel wire rope 7 through the second steel wire rope 31, and the pulling force is transmitted to the limiting rod 16, so as to avoid the bending deformation of the first steel wire rope 7 caused by the weight of the guardrail plate 11, and further improve the stability and service life of the guardrail.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0036] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PVC guardrail that is convenient for disassembly, assembly, and free bending, comprising at least two groups of installation cylinders (1), limit rods (16), and guardrail plates (11), characterized in that, A fixing base (2) is fixedly installed at the bottom of the installation cylinder (1). A rotating shaft (3) is rotatably installed in the installation cylinder (1). First steel cables (7) are wound around both the upper and lower ends of the rotating shaft (3). The movable ends of the first steel cables (7) extend out of the installation cylinder (1), and hooks (8) are fixedly installed at the movable ends of the first steel cables (7). A connecting ring (9) is fixedly installed on the back side of the side surface of the installation cylinder (1) corresponding to the position where the first steel cable (7) extends out. A worm gear (5) is fixedly installed at the top of the rotating shaft (3). The worm gear (5) meshes with a worm (6) rotatably installed on the installation cylinder (1). During use, the hook (8) is connected to the connecting ring (9) on another set of installation cylinders (1) to make the first steel cables (7) distributed on a horizontal plane. Multiple groups of guardrail plates (11) are provided and arranged on the first steel cables (7). Multiple groups of limiting rods (16) are provided. A counterweight base (17) is fixedly installed at the bottom of the limiting rod (16). The limiting rod (16) is used in cooperation with the first steel cable (7) and is used to change the direction of the first steel cable (7). An installation groove (10) is fixedly installed at the top of the installation cylinder (1). Two sets of installation cylinders (1) are fixedly installed with a U-shaped bracket (20) through the installation groove (10). Multiple first sliders (21) are slidably installed on the horizontal section of the bracket (20). A cross plate (22) with an I-shaped structure is slidably installed on the first slider (21). The cross plate (22) is perpendicular to the horizontal section of the bracket (20), and a second slider (23) is slidably installed on the cross plate (22). A pressing cylinder (26) used in cooperation with the limiting rod (16) is provided on the second slider (23).

2. The PVC guardrail according to claim 1, which is convenient for disassembly and assembly and can be freely bent, is characterized in that, Multiple baffles (4) are fixedly installed on the rotating shaft (3) on both sides of the winding position of the first steel cable (7).

3. A PVC guardrail that is easy to disassemble and assemble and can be freely bent according to claim 1, characterized in that, An L-shaped upper limiting plate (12) is fixedly installed at one end of the guardrail plate (11). A support plate (13) is fixedly installed at the end of the guardrail plate (11) away from the upper limiting plate (12). An adjusting screw (14) is threadedly installed on the support plate (13). The end of the adjusting screw (14) is rotatably connected to an L-shaped lower limiting plate (15). The lower limiting plate (15) is in sliding contact with the guardrail plate (11). The lower limiting plate (15) and the upper limiting plate (12) have opposite openings. The guardrail plate (11) is installed on the first steel cable (7) through the upper limiting plate (12) and the lower limiting plate (15).

4. A PVC guardrail that is easy to disassemble and assemble and can be freely bent according to claim 1, characterized in that, Two sets of L-shaped support plates (18) are fixedly installed on the limiting rod (16). The heights of the two sets of support plates (18) are the same as the height where the first steel cable (7) is located and are used to support the first steel cable (7). A pressing screw (19) for fixing the first steel cable (7) is threadedly installed on the support plate (18).

5. A PVC guardrail that is easy to disassemble and assemble and can be freely bent according to claim 1, characterized in that, A threaded cylinder (24) is fixedly installed on the bottom surface of the second slider (23). A pressing screw (25) is threadedly connected in the threaded cylinder (24). The pressing cylinder (26) is fixedly installed at the end of the pressing screw (25).

6. The PVC guardrail according to claim 1, which is convenient for disassembly and assembly and free bending, is characterized in that A card slot (34) for installing the first slider (21) is opened at one end of the horizontal section of the bracket (20).

7. A PVC guardrail that is easy to disassemble and assemble and can be freely bent according to claim 1, characterized in that, A lifting cylinder (27) is threadedly mounted on the limiting rod (16). A base plate (28) is rotatably mounted on the lifting cylinder (27). A through groove (30) is formed in the base plate (28), and a sliding sleeve (29) is slidably mounted on the base plate (28). A second steel wire rope (31) is fixedly connected to the sliding sleeve (29). One end of the second steel wire rope (31) away from the sliding sleeve (29) is fixedly provided with a U-shaped connecting plate (32). A connecting screw (33) is threadedly connected to the side wall of the connecting plate (32).

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