A type of guardrail for road construction

Abstract

This utility model relates to the field of guardrail technology, and more particularly to a guardrail for road construction. It includes a pair of positioning posts, with several guardrail bars positioned between the two posts. Each positioning post contains a lifting and moving component, and each post has an anti-loosening component at its top. This utility model utilizes the coordinated operation of the lifting and moving components and the anti-loosening components. During transport, rotating the casters lowers the casters to the ground, clamping the pivot and pushing allows for easy movement, saving time and effort. During installation, the casters are retracted, and the mounting plate is bolted on, completely detaching the guardrail from the roller support. The mounting plate is then bolted on after contact with the ground, completely eliminating the impact of the rollers on stability. This device retains the advantage of convenient transport while solving instability issues through the dual protection of the casters being completely detached from the ground and bolted fixation.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and in particular to a protective guardrail for engineering road construction. Background Technology

[0002] Protective barriers for road construction are safety protection facilities specifically designed for road construction scenarios. Their core function is to isolate the construction area from the normal passage area, ensuring the safety of construction personnel and equipment as well as the passage safety of passing vehicles and pedestrians. They also serve as traffic guidance and warning functions.

[0003] Existing technology CN212316776U discloses a municipal road construction guardrail, including a base, a support frame fixed to the bottom of the base, rollers at the bottom of the support frame, a fixed post fixedly connected to the top of the base, a telescopic post connected to the top of the fixed post, a telescopic post connected to the top of the telescopic post, a U-shaped plate fixedly connected to the top of the U-shaped plate, a support platform fixedly connected to the top of the support platform, a lighting lamp on the top of the lighting lamp, a solar panel on one side of the lighting lamp, a hook fixedly welded to one side of the telescopic post, a fixing block on the outside of the hook, a fixed main pole fixedly welded to one side of the fixing block, a protective net inside the fixed main pole, and a display screen inside the protective net. This provides a municipal engineering road construction guardrail that is easy to install and disassemble, and has lighting and warning functions.

[0004] While the addition of rollers facilitates handling, the rollers cannot completely detach from the ground or reliably lock, resulting in insufficient overall stability of the guardrail. In actual road construction environments, on the one hand, external forces such as airflow disturbances from passing vehicles and accidental collisions with pedestrians can easily cause guardrails with rollers to shift or tilt, compromising the integrity of the isolated area. On the other hand, if the construction section has a slight slope, the unlocked rollers may cause the guardrail to slide on its own, potentially even causing it to collapse. This not only renders it ineffective but may also pose secondary safety hazards to surrounding personnel and vehicles, failing to meet the core requirement of guardrail stability in road construction. Utility Model Content

[0005] The purpose of this utility model is to provide a protective barrier for road construction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution, which includes a pair of positioning posts, several guardrails between the two positioning posts, a lifting and moving component inside the positioning posts, and an anti-loosening component at the top of each positioning post.

[0007] As a preferred embodiment of this utility model, the bottom of the positioning column is provided with an installation plate, the installation plate is provided with several bolt holes, a docking plate is provided on one side of the positioning column, the docking plate is provided with several bolt holes, a moving groove is provided on the side of the positioning column, a sliding groove is symmetrically provided on the inner walls of both sides of the moving groove, and a pair of sliding grooves are provided on the top of the positioning column.

[0008] In a preferred embodiment of this utility model, the lifting and moving assembly includes a lead screw located within a moving groove. A rotating shaft is provided at the top of the lead screw. Both the rotating shaft and the lead screw are movably mounted within a positioning column via bearing seats. A rotating wheel is provided at the top of the rotating shaft. An I-shaped plate is provided within the moving groove. A nut is provided on the I-shaped plate, and the nut is threaded onto the lead screw. A pair of universal wheels are provided at the bottom of both sides of the I-shaped plate. A slider is provided on both sides of the I-shaped plate at a position corresponding to the first sliding groove, and the slider is located within the first sliding groove.

[0009] As a preferred embodiment of this utility model, the anti-loosening component includes a pair of clamping blocks disposed on the top of the positioning column, with several cleats disposed on the inner wall of the clamping blocks, the two clamping blocks clamping the outer side of the rotating shaft, a second slider disposed at the bottom of the clamping blocks, the second slider disposed in a second groove, a fixing plate disposed on one side of the clamping blocks, a screw threaded between the two fixing plates, a pair of nuts disposed on the screw thread, and the two nuts respectively abutting against the outer side of the two fixing plates.

[0010] As a preferred embodiment of this invention, the positioning post is symmetrically provided with reflective strips on both its front and back sides, and the reflective strips are located above the moving groove.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. This utility model utilizes a lifting and moving component in conjunction with an anti-loosening component. During transport, rotating the caster allows the caster to move down to the ground, and after clamping the pivot, it can be pushed to move, saving time and effort. During installation, the caster is retracted by reversing the operation, and the mounting plate is fixed with bolts, so that the guardrail is completely detached from the roller support. After the mounting plate is in contact with the ground, it is fixed with bolts, completely eliminating the impact of the rollers on stability. This device retains the advantage of convenient transport, and solves the instability problem through the double guarantee of the caster being completely detached from the ground and fixed with bolts. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the positioning column, lifting moving component, and anti-loosening component of this utility model during assembly. Figure 3 This is a schematic diagram of the positioning column structure of this utility model; Figure 4 This is a schematic diagram of the lifting and moving component structure of this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the anti-loosening component structure of this utility model.

[0013] Reference numerals: Positioning post 1, Mounting plate 10, Bolt hole one 11, Moving groove 12, Connecting plate 13, Bolt hole two 14, Slide groove one 15, Slide groove two 16, Guardrail 2, Lifting moving assembly 3, Lead screw 30, Rotating shaft 31, Rotating wheel 32, Bearing seat 33, I-shaped plate 34, Lead nut 35, Universal wheel 36, Slider one 37, Anti-loosening assembly 4, Clamping block 40, Spike 41, Slider two 42, Fixing plate 43, Screw 44, Nut 45, Reflective strip 5. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0015] like Figures 1-6 As shown, this utility model proposes a protective railing for road construction, which includes a pair of positioning posts 1, with several guardrails 2 arranged between the two positioning posts 1 to connect the two positioning posts 1. An installation plate 10 is welded to the bottom of the positioning post 10, and four bolt holes 11 are evenly provided on the installation plate 10 for fixing to the ground. A connecting plate 13 is welded to the side of the positioning post 1 away from the guardrail, and several bolt holes 14 are provided on the connecting plate 13. A moving groove 12 is provided on the side of the positioning post 1 along the height direction. A sliding groove 15 is symmetrically provided on the inner walls of both sides of the moving groove 12. A pair of sliding grooves 16 are provided on the top of the positioning post 1, which provide installation and movement space for the lifting moving component 3 and the anti-loosening component 4, respectively. The positioning post 1 has reflective strips 5 affixed to both sides, which can alert passing vehicles at night by reflecting light and improving the warning effect; The lifting and moving component 3 is used to realize the convenient movement of the guardrail, avoiding the manpower consumption when carrying the traditional guardrail. The specific structure includes a screw 30, which is vertically set in the moving groove 12 of the positioning post 1. A rotating shaft 31 is coaxially welded to the top of the screw 30. The top of the rotating shaft 31 extends to the outside of the positioning post 1, and a rotating wheel 32 is set at the top of the rotating shaft 31 to facilitate manual operation by the staff. The lifting and moving assembly 3 also includes an I-shaped plate 34, which is located in the moving groove 12. A nut 35 is provided in the middle of the I-shaped plate 34. The nut 35 is sleeved on the lead screw 30. The rotation of the lead screw 30 drives the I-shaped plate 34 to move in the vertical direction. A pair of universal wheels 36 are fixed on the bottom of both sides of the I-shaped plate 34 to support the guardrail and enable movement. Slider blocks 37 (with clearance fit with the slide groove 15) are provided on both sides of the I-shaped plate 34 at the positions corresponding to the slide groove 15. The slider blocks 37 are embedded in the slide groove 15 to limit the rotation of the I-shaped plate 34 and ensure that it rises and falls smoothly in the vertical direction. The anti-loosening component 4 is used to fix the rotating shaft 31 of the lifting and moving component 3, so as to prevent the guardrail from moving or the rotating shaft 31 from rotating accidentally during use, and to ensure the stability of the structure. The specific structure includes a pair of clamping blocks 40, which are symmetrically distributed on the top of the positioning column 1. Several rows of barbs 41 are evenly arranged on the inner wall of the clamping block 40. When the two clamping blocks 40 are closed, they can wrap around the outside of the rotating shaft 31. The barbs 41 enhance the anti-slip effect. A second slider 42 (which is in clearance fit with the second groove 16) is provided at the bottom of the clamping block 40. The second slider 42 is embedded in the second groove 16, so that the clamping block 40 can move horizontally along the second groove 16 to clamp or release the rotating shaft 31. Two clamping blocks 40 are symmetrically provided with fixing plates 43 on the same side. Both fixing plates 43 have through holes. The screw 44 passes through the through holes of the two fixing plates 43. Both ends of the screw 44 are threaded with nuts 45. By tightening the nuts 45, the two fixing plates 43 are pushed closer to each other, thereby clamping the rotating shaft 31 with the clamping blocks 40. When the nuts 45 are loosened, the clamping blocks 40 can be pulled apart to release the fixation of the rotating shaft 31.

[0016] During use, the operator stands beside the positioning post 1, holds the rotating wheel 32 with both hands, and manually rotates the rotating wheel 32 on both positioning posts 1 clockwise (synchronous operation is required to avoid tilting the guardrail); the rotating wheel 32 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the lead screw 30 to rotate synchronously. Because the lead screw nut 35 is threadedly engaged with the lead screw 30, and the I-shaped plate 34 is restricted from rotation by the slider 37, the rotation of the lead screw 30 will cause the lead screw nut 35 and the I-shaped plate 34 to move downwards in the vertical direction; the downward movement of the I-shaped plate 34... During the process, the caster 36 at the bottom gradually contacts the ground and continues to rotate the wheel 32 until the caster 36 fully supports the positioning column 1, causing the mounting plate 10 to lift off the ground; then the two clamping blocks 40 are pushed to move along the slide groove 16 toward the rotating shaft 31, so that the cleats 41 on the inner wall of the clamping blocks 40 fit against the surface of the rotating shaft 31; then the nuts 45 at both ends of the screw 44 are tightened, and the fixing plate 43 is squeezed by the nuts 45, so that the two clamping blocks 40 tightly clamp the rotating shaft 31, preventing the rotating shaft 31 from rotating accidentally; After securing the two positioning posts 1, workers can push the guardrail and move it to the designated construction section using the casters 36. Once the guardrail is in the construction section, loosen the nuts 45 at both ends of the screw 44, pull the clamping block 40 to separate along the slide groove 16, and release the clamping of the rotating shaft 31. Manually rotate the wheel 32 counterclockwise to rotate the rotating shaft 31 and the lead screw 30 in the opposite direction, causing the lead nut 35 and the I-shaped plate 34 to move upward in the vertical direction. The casters 36 move upward with the I-shaped plate 34 and gradually detach from the ground. Continue rotating the wheel 32 until the mounting plate 10 at the bottom of the positioning post 1 is completely in contact with the ground. At this point, stop rotating the wheel 32. Take a suitable expansion bolt, pass it through the bolt hole 11 on the mounting plate 10, and use a tool to screw the expansion bolt into the pre-set hole in the ground to ensure that the positioning post 1 is firmly fixed to the ground.

[0017] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A barrier for use in the construction of an engineered road, comprising a pair of positioning posts (1), a plurality of barrier poles (2) being provided between the two positioning posts (1), characterised in that: The positioning column (1) is provided with a lifting moving component (3), and each positioning column (1) is provided with an anti-loosening component (4) at its top. The bottom of the positioning post (1) is provided with a mounting plate (10), and the mounting plate (10) has several bolt holes (11). The side of the positioning post (1) is provided with a docking plate (13), and the docking plate (13) has several bolt holes (14). The side of the positioning post (1) is provided with a moving groove (12), and the inner walls of the moving groove (12) are symmetrically provided with sliding grooves (15). The top of the positioning post (1) is provided with a pair of sliding grooves (16). The lifting moving assembly (3) includes a lead screw (30), which is located in the moving groove (12). A rotating shaft (31) is provided at the top of the lead screw (30). Both the rotating shaft (31) and the lead screw (30) are movably mounted in the positioning column (1) through a bearing seat (33). A rotating wheel (32) is provided at the top of the rotating shaft (31). An I-shaped plate (34) is provided in the moving groove (12). A nut (35) is provided on the I-shaped plate (34). The nut (35) is threaded on the lead screw (30). A pair of universal wheels (36) are provided at the bottom of both sides of the I-shaped plate (34). A slider (37) is provided on both sides of the I-shaped plate (34) at the position corresponding to the sliding groove (15). The slider (37) is located in the sliding groove (15). The anti-loosening component (4) includes a pair of clamping blocks (40) set on the top of the positioning column (1). Several barbs (41) are provided on the inner wall of the clamping block (40). The two clamping blocks (40) are clamped on the outside of the rotating shaft (31). A second slider (42) is provided at the bottom of the clamping block (40). The second slider (42) is set in the second slide groove (16). A fixing plate (43) is provided on one side of the clamping block (40). A screw (44) is passed between the two fixing plates (43). A pair of nuts (45) are provided on the screw (44), and the two nuts (45) abut against the outside of the two fixing plates (43) respectively.

2. The protective fence for engineering road construction according to claim 1, characterized in that: The positioning post (1) is symmetrically provided with reflective strips (5) on both the front and back sides, and the reflective strips (5) are located above the moving groove (12).

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