Adjustable guardrail for highway traffic safety

Abstract

This utility model relates to the field of road guardrail technology, and in particular to an adjustable guardrail for highway traffic safety. It includes two mounting bases, each with four casters at its lower corners. The adjustable guardrail of this utility model allows for easy movement to a designated position via the casters. Turning the lever activates a screw to drive a clamping plate, fixing the abrasive block to the ground. When length adjustment is needed, pushing the support rod allows the extension frame to slide out, embedding the extension component and adjusting it using fixing bolts and pins. When a required height is needed on the highway, a motor, gears, and racks work together to slide a guide plate, moving the crossbar and extending / retracting the extension guardrail, simultaneously adjusting the position of the second extension guardrail. This allows for flexible and precise adjustment of the guardrail's length and height, effectively addressing the diverse needs of different construction areas and complex highway environments, improving adaptability and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road guardrail technology, and in particular to an adjustable guardrail for highway traffic safety. Background Technology

[0002] Currently, highway traffic safety guardrails have many limitations in practical applications. Traditional guardrails are mostly of fixed specifications, with limited height and length adjustment. When highways undergo reconstruction, expansion, maintenance, or encounter complex terrain, they cannot be flexibly changed in size according to the site conditions, resulting in poor protective effects. For example, at curves, fixed-length guardrails cannot completely cover dangerous areas; fixed-height guardrails cannot provide effective protection against roadside elevation differences; furthermore, the installation process of existing guardrails is cumbersome, making them difficult to move and fix quickly, and they cannot adapt to the frequently changing needs of highway construction scenarios. Moreover, replacing the entire guardrail is costly. Therefore, we have introduced a new adjustable guardrail for highway traffic safety. Utility Model Content

[0003] The main purpose of this utility model is to provide an adjustable guardrail for highway traffic safety, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An adjustable guardrail for highway traffic safety includes two mounting bases. Each mounting base has four casters at its lower corners and a support rod at its upper end. The support rods are arranged symmetrically on the left and right sides. An adjustable guardrail assembly is housed within each support rod via a cavity. An extension component is movably installed inside the adjustable guardrail assembly. Fixing plates are located at the left and right ends of each mounting base. Screws are threaded onto the upper ends of the four fixing plates. A handle is located at the upper end of each of the four screws. A pressure plate is movably mounted at the lower end of each of the four pressure plates via a movable sleeve. A frosted block is located at the lower end of each of the four pressure plates.

[0006] Preferably, the adjustable guardrail assembly includes crossbeams and a motor. Four crossbeams are arranged in pairs, with each of the upper two crossbeams having four first extension rails at its lower end. Guide plates are provided at the lower ends of the upper two crossbeams near the two support rods. Several racks are provided at the left end of the guide plate on the left side. A drive gear is fixedly mounted on the output end of the motor via a rotating rod. The crossbeams located above and below the left side have hollow interiors. Extension frames are provided at the left ends of the crossbeams located above and below the right side. Slots are provided inside the upper extension frames, and slots are provided at the upper end of the lower extension frames. The left portions of the two extension frames extend into the interiors of the two left-side crossbeams and are slidably connected to the inner walls of the two left-side crossbeams. Four first outer guardrails are provided at the upper ends of the two lower crossbeams. The two lower crossbeams are fixed to the two support rods respectively.

[0007] Preferably, both guide plates are slidably connected together between the slider and the inner wall of the two support rods.

[0008] By adopting the above technical solution, the guide plate can slide flexibly on the support rod, allowing the guide plate to adjust its position and height as needed.

[0009] Preferably, the motor is fixedly mounted on the upper front end of the support rod on the left.

[0010] By adopting the above technical solution, stable support can be provided for the motor.

[0011] Preferably, the lower part of the first extension rail extends into the interior of the first outer protective rail.

[0012] By adopting the above technical solution, it is easier to make subsequent extensions.

[0013] Preferably, the extension assembly includes a mounting top plate and a base. The lower end of the mounting top plate is provided with eight second extension rails, and the upper end of the base is provided with eight second outer protective rails. The eight second extension rails extend into the interior of the eight second outer protective rails respectively. The front ends of the two second outer protective rails and the two extension rails located in the middle are all movably mounted with fixing pins through through holes. The left and right front ends and the left and right rear ends of the mounting top plate are all movably mounted with fixing bolts through mounting ears.

[0014] By adopting the above technical solution: the second extension rail and the second outer protective rail in the extension component adopt a nested design, which can realize flexible adjustment of length. The setting of the pin can fix the second extension rail and the second outer protective rail located in the middle. The design of the mounting ears and fixing bolts facilitates the fixed installation of the mounting top plate and other components.

[0015] Preferably, the base, the second extension rail, and the second outer protective rail all pass through the slot and extend between the two extension frames, and the base is movably engaged inside the slot.

[0016] By adopting the above technical solution, the extension component can be accurately positioned and installed between the two extension frames, and the movable snap-fit ​​method facilitates both installation and disassembly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The mounting base can be easily moved to the designated position using the casters at the bottom. Then, turn the handle to make the screw drive the pressure plate down, and the abrasive block will make close contact with the ground to complete the fixation. When the required protection length of the road section changes, push the support rod on the unfixed side, and the extension frame will slide out from the cross frame. After being fixed again, the extension component will be embedded. Through the cooperation of the fixing bolts and fixing pins, the length of the guardrail can be flexibly adjusted, effectively meeting the different protection length requirements of different construction areas.

[0019] 2. When the highway has a required guard height, the motor is started. Its drive gear meshes with the rack and pinion, causing the guide plate to slide along the inner wall of the support rod, so that the four crossbars move relative to each other. The first extension rail extends and retracts within the first outer guardrail, and the position of the second extension rail within the second outer guardrail is adjusted synchronously, so as to achieve precise adjustment of the guardrail height. There is no need to replace the entire guardrail, which significantly improves the adaptability and efficiency of the guardrail in complex highway environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an adjustable guardrail for highway traffic safety according to this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of an adjustable guardrail for highway traffic safety according to this utility model.

[0022] Figure 3 This is a schematic diagram of the overall structure of an adjustable guardrail assembly for highway traffic safety according to this utility model.

[0023] Figure 4 This is a schematic diagram of the overall structure of an extension component of an adjustable guardrail for highway traffic safety according to this utility model.

[0024] In the diagram: 1. Mounting base; 2. Caster wheel; 3. Support rod; 4. Adjustable guardrail assembly; 40. Horizontal frame; 41. First extension guardrail; 42. Guide plate; 43. Rack; 44. Motor; 45. Drive gear; 46. Extension frame; 47. Slot; 48. Card slot; 49. First outer guardrail; 5. Extension assembly; 51. Mounting top plate; 52. Base; 53. Second extension guardrail; 54. Second outer guardrail; 55. Fixing pin; 56. Fixing bolt; 6. Fixing plate; 7. Screw; 8. Handle; 9. Pressure plate; 10. Frosted block. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] An adjustable guardrail for highway traffic safety includes two mounting bases 1. Each mounting base 1 has a caster wheel 2 at its lower four corners. Each mounting base 1 has a support rod 3 at its upper end, with the two support rods 3 arranged symmetrically on the left and right sides. An adjustable guardrail assembly 4 is housed within each support rod 3 via a cavity. An extension component 5 is movably installed inside the adjustable guardrail assembly 4. Fixing plates 6 are located at the left and right ends of each mounting base 1. Screws 7 are threadedly installed onto the upper ends of each of the four fixing plates 6. A handle 8 is located at the upper end of each of the four screws 7. A pressure plate 9 is movably installed onto the lower end of each of the four pressure plates 7 via a movable sleeve. A frosted block 10 is located at the lower end of each of the four pressure plates 9.

[0030] In this embodiment, the adjustable guardrail assembly 4 includes a crossbeam 40 and a motor 44. Four crossbeams 40 are arranged in pairs, with each of the upper two crossbeams 40 having four first extension rails 41 at their lower ends. Guide plates 42 are provided at the lower ends of the upper two crossbeams 40 near the two support rods 3. Several racks 43 are provided at the left end of the guide plate 42 on the left side. A drive gear 45 is fixedly mounted on the output end of the motor 44 via a rotating rod. The crossbeams 40 located at the upper left and lower left sides are hollow inside. Extension rails 46 are provided at the left ends of the crossbeams 40 located at the upper right and lower right sides. The extension frame 46 of the lower part has a slot 47 inside, and the upper end of the extension frame 46 of the lower part has a slot 48. The left parts of the two extension frames 46 extend into the interior of the two horizontal frames 40 on the left side and are slidably connected to the inner wall of the two horizontal frames 40 on the left side. The upper end of the two horizontal frames 40 of the lower part is provided with four first outer guardrails 49. The two horizontal frames 40 of the lower part are fixed to the two support rods 3 respectively. The two guide plates 42 are slidably connected to the inner wall of the two support rods 3 through sliders. The motor 44 is fixedly installed on the upper front end of the support rod 3 of the left part. The lower part of the first extension rail 41 extends into the interior of the first outer guardrail 49.

[0031] Through the above scheme: when using the adjustable guardrail assembly 4, the motor 44 starts and drives the drive gear 45 to rotate. The drive gear 45 meshes with the rack 43, driving the left guide plate 42 to slide along the inner wall of the left support rod 3 via the slider. The right guide plate 42 simultaneously slides along the inner wall of the right support rod 3 via the slider, causing the four crossbars 40 to move relative to each other. The first extension rail 41 extends and retracts within the first outer guardrail 49, realizing the adjustment of the guardrail height.

[0032] In this embodiment, the extension assembly 5 includes a mounting top plate 51 and a base 52. The lower end of the mounting top plate 51 is provided with eight second extension rails 53, and the upper end of the base 52 is provided with eight second outer protective rails 54. The eight second extension rails 53 extend into the interior of the eight second outer protective rails 54 respectively. The front ends of the two second outer protective rails 54 and the second extension rails 53 located in the middle are all movably installed with fixing pins 55 through through holes. The left and right front ends and the left and right rear ends of the mounting top plate 51 are movably installed with fixing bolts 56 through mounting ears. The base 52, the second extension rails 53 and the second outer protective rails 54 all pass through the slots 47 and extend between the two extension frames 46. The base 52 is movably engaged in the interior of the slot 48.

[0033] The above solution allows for the following: When it is necessary to extend the length of the guardrail, the base 52 of the extension component 5, the second extension bar 53, and the second outer guardrail 54 are inserted through the slot 47 and extended between the two extension frames 46, so that the base 52 is movably engaged in the slot 48. By removing the two fixing pins 55, the second extension bar 53 is extended and retracted to a suitable length within the second outer guardrail 54. Finally, the mounting top plate 51 is fixedly connected to the extension frame 46 by the fixing bolt 56, thus completing the extension of the guardrail length.

[0034] It should be noted that this utility model is an adjustable guardrail for highway traffic safety. During use, the guardrail is moved to the required position for highway safety by using the movable wheels 2 at the four corners of the lower end of the mounting base 1. Rotating the two handles 8 on one side drives the screw 7 to rotate on the fixed plate 6, making the abrasive block 10 at the lower end of the pressure plate 9 in close contact with the ground, thus fixing one side of the guardrail. When it is necessary to extend the length of the guardrail, the support rod 3 on the unfixed side is pushed, causing the two extension frames 46 to extend out from the inside of the two cross frames 40 on the left side. Then, by rotating the two handles 8 on the unfixed side again, the screw 7 is driven to rotate on the fixed plate 6, making the abrasive block 10 at the lower end of the pressure plate 9 in close contact with the ground, thus fixing the guardrail as a whole. Then, the base 52 of the extension component 5, the second extension rail 53, and the second outer guardrail 54 are inserted through it. The groove 47 extends between the two extension frames 46, allowing the base 52 to be movably engaged in the groove 48; and the mounting top plate 51 is fixedly connected to the extension frame 46 by the fixing bolt 56, and then the two fixing pins 55 are removed. When the overall height needs to be adjusted, the motor 44 is started by the controller, and its output end drives the drive gear 45 to rotate through the rotating rod. The drive gear 45 meshes with the rack 43 at the left end of the left guide plate 42, driving the left guide plate 42 to slide along the inner wall of the left support rod 3 through the slider. At the same time, the right guide plate 42 slides along the inner wall of the right support rod 3 through the slider, causing the four cross frames 40 to move relative to each other. The first extension rail 41 at the lower end of the upper cross frame 40 extends and retracts within the first outer guardrail 49 at the upper end of the lower cross frame 40, realizing the adjustment of the guardrail height. At the same time, the second extension rail 53 extends and retracts to the appropriate length within the second outer guardrail 54.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable guardrail for highway traffic safety, comprising a mounting base (1), characterized in that: There are two mounting bases (1). Each of the four corners of the lower end of the two mounting bases (1) is provided with a moving wheel (2). Each of the two mounting bases (1) is provided with a support rod (3) at the upper end. The two support rods (3) are distributed in a left-right correspondence. Each of the two support rods (3) is provided with an adjustable guardrail assembly (4) through a cavity. An extension component (5) is movably installed inside the adjustable guardrail assembly (4). Each of the two mounting bases (1) is provided with a fixing plate (6) at the left and right ends. Each of the four fixing plates (6) is provided with a screw (7) threaded through the upper end. Each of the four screws (7) is provided with a handle (8) at the upper end. Each of the four screws (7) is provided with a pressure plate (9) movably installed through a movable sleeve at the lower end. Each of the four pressure plates (9) is provided with a frosted block (10) at the lower end. The adjustable guardrail assembly (4) includes a crossbeam (40) and a motor (44). Four crossbeams (40) are arranged in pairs, with each pair corresponding to the other. The lower ends of the two upper crossbeams (40) are each provided with four first extension rails (41). The lower ends of the two upper crossbeams (40) near the two support rods (3) are each provided with a guide plate (42). The left end of the guide plate (42) on the left side is provided with several racks (43). The output end of the motor (44) is fixedly mounted with a drive gear (45) via a rotating rod. The crossbeams (40) located above and below the left side... The interior is hollow. The left end of the cross frame (40) located at the upper right and lower right is provided with an extension frame (46). The upper extension frame (46) is provided with a slot (47). The upper end of the lower extension frame (46) is provided with a slot (48). The left part of the two extension frames (46) extends into the interior of the two cross frames (40) on the left and slides together with the inner wall of the two cross frames (40) on the left. The upper end of the two lower cross frames (40) is provided with four first outer guardrails (49). The two lower cross frames (40) are fixed to the two support rods (3) respectively.

2. The adjustable guardrail for highway traffic safety according to claim 1, characterized in that: Both guide plates (42) are slidably connected to the inner walls of the two support rods (3) via sliders.

3. The adjustable guardrail for highway traffic safety according to claim 1, characterized in that: The motor (44) is fixedly installed on the upper front end of the support rod (3) on the left.

4. The adjustable guardrail for highway traffic safety according to claim 1, characterized in that: The lower part of the first extension rail (41) extends into the interior of the first outer guardrail (49).

5. An adjustable guardrail for highway traffic safety according to claim 1, characterized in that: The extension assembly (5) includes a mounting top plate (51) and a base (52). The lower end of the mounting top plate (51) is provided with eight second extension rails (53), and the upper end of the base (52) is provided with eight second outer protective rails (54). The eight second extension rails (53) extend into the interior of the eight second outer protective rails (54). The front ends of the two second outer protective rails (54) and the second extension rails (53) located in the middle are all movably installed with fixing pins (55) through through holes. The left and right front ends and the left and right rear ends of the mounting top plate (51) are movably installed with fixing bolts (56) through mounting ears.

6. An adjustable guardrail for highway traffic safety according to claim 5, characterized in that: The base (52), the second extension rail (53), and the second outer protective rail (54) all pass through the slot (47) and extend between the two extension brackets (46), and the base (52) is movably engaged inside the slot (48).

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