Protective fence for road and bridge construction

Abstract

The utility model relates to the technical field of protective fences, in particular to a protective fence for road and bridge construction, which solves the problems mentioned in the background technology and comprises a base, a connecting rod is fixedly connected to the top of the base, and a rectangular through hole is formed in the side portion of the connecting rod. A plurality of evenly-distributed connecting blocks fixedly connected with the connecting rod are arranged on the rectangular through hole, clamping grooves are formed in the two sides of the top of each connecting block, a through hole is formed in the middle of the top of each connecting block, and a limiting plate in sliding connection with the rectangular through hole in the connecting rod is placed on the top of each connecting block. The connecting rod is rotationally connected with a threaded assembly which penetrates through the through hole and is in threaded connection with the limiting plate, the clamping groove is connected with a guardrail assembly in an inserted and pulled mode, the limiting plate can be driven to slide on the rectangular through hole of the connecting rod by rotating the threaded assembly, the guardrail assembly can be installed in the clamping groove in an inserted and pulled connection mode, and the device is convenient to disassemble or install. And in the transportation process, stacking is convenient, the occupied space is reduced, and carrying by installation personnel is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guardrails, in particular to a guardrail for road and bridge construction. BACKGROUND

[0002] It is known that in the process of road and bridge construction, the construction area needs to be surrounded by a guardrail to isolate the construction area and prevent pedestrians from entering the construction area and being injured, but the existing guardrails are generally carried into the construction site before use, which is troublesome and time-consuming because of their large size and inability to be disassembled into multiple parts. SUMMARY

[0003] (I) Technical problem solved

[0004] To overcome the shortcomings of the prior art, the utility model provides a guardrail for road and bridge construction, which solves the problems mentioned in the background.

[0005] (II) Technical scheme

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a guardrail for road and bridge construction, comprising a base, a connecting rod fixedly connected to the top of the base, a rectangular through hole opened in the side of the connecting rod, a plurality of evenly distributed connecting blocks fixedly connected to the connecting rod arranged on the rectangular through hole, a clamping groove opened on both sides of the top of the connecting block, a through hole opened in the middle of the top, a limiting plate placed on the top of the connecting block and slidably connected to the rectangular through hole of the connecting rod, a threaded assembly rotatably connected to the connecting rod and threadedly connected to the limiting plate, and a guardrail assembly plug-connected to the clamping groove.

[0007] Further, the guardrail assembly comprises a guardrail rod, and the two ends of the guardrail rod are fixedly connected to clamping blocks matched with the clamping grooves, and the clamping grooves are T-shaped.

[0008] Further, the threaded assembly comprises a threaded rod, smooth portions are arranged on the outer walls of the threaded rod near the two ends, and rotating blocks are connected to the smooth portions, and a rotating disc is installed at one end of the threaded rod.

[0009] Further, a plurality of evenly distributed fixing holes are opened in the base.

[0010] Further, a plurality of reflective sheets are installed on the outer wall of the connecting rod.

[0011] Further, a warning light is installed on the top of the rotating disc.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the utility model provides a guard bar for road bridge construction, has the following beneficial effects:

[0014] The guard bar for road bridge construction, the connecting rod is fixedly connected with the connecting block, the connecting block is provided with the clamping groove, the guard bar assembly can be installed in the clamping groove through the plug -in connection mode, is convenient for disassembling or installing the device, and is convenient for stacking in the transportation process, reduces the occupied space, and is also favorable for the installation personnel to carry. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is the three-dimensional structure schematic view of the utility model in base, connecting rod, connecting block, through -hole, clamping groove and fixed hole;

[0017] Figure 3 It is the three-dimensional structure schematic view of the utility model in limiting board;

[0018] Figure 4 It is the three-dimensional structure schematic view of the utility model in guard bar assembly;

[0019] Figure 5 It is the three-dimensional structure schematic view of the utility model in threaded assembly.

[0020] In the drawing: 1, base; 2, connecting rod; 3, connecting block; 4, through -hole; 5, clamping groove; 6, limiting board; 7, guard bar assembly; 8, threaded assembly; 9, guard bar; 10, clamping block; 11, threaded rod; 12, rotating block; 13, rotating disc; 14, fixed hole; 15, reflector; 16, warning light. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0022] Please refer to Figures 1-5The utility model discloses a guardrail for road and bridge construction, including base 1, a plurality of evenly distributed fixed holes 14 are opened to base 1, fixed hole 14 is divided into two sections, and the aperture of lower part is less than the aperture of upper part, to form a limiting platform in fixed hole 14, and the expansion bolt or ground peg is inserted into fixed hole 14, and the limiting platform can limit, to connect and fix base 1 with ground through expansion bolt or ground peg.

[0023] The top of base 1 is fixedly connected with connecting rod 2, and a rectangular through hole is formed in the side of connecting rod 2; a plurality of connecting blocks 3 in uniform distribution are arranged on the rectangular through hole and are fixedly connected with connecting rod 2; the rectangular through hole of connecting rod 2 is divided into a plurality of small through holes by connecting blocks 3; clamping grooves 5 are formed in the top of connecting blocks 3 on both sides, and a through hole 4 is formed in the middle of the top; a limiting plate 6 is arranged on the top of connecting block 3 and is slidably connected with the small through hole of connecting rod 2; the limiting plate 6 is in contact with the hole wall of the small through hole of connecting rod 2; the hole wall of the small through hole can limit the limiting plate 6, and the rotation of the limiting plate 6 in the small through hole is prevented.

[0024] A threaded assembly 8 is arranged on connecting rod 2; the threaded assembly 8 comprises a threaded rod 11; smooth parts are arranged on the outer walls of the threaded rod 11 close to both ends; rotating blocks 12 are connected to the smooth parts; a rotating disc 13 is arranged at one end of the threaded rod 11; rotating grooves are formed in the inner top wall of connecting rod 2 and in base 1; the smooth parts of the threaded rod 11 and the rotating shaft are arranged in the rotating grooves and can rotate; the rotating blocks 12 limit the threaded rod 11 on connecting rod 2; the rotating disc 13 is arranged on the top of connecting rod 2, which is convenient for the operator to operate and rotate; the threaded rod 11 penetrates the through hole 4 of connecting block 3, and the limiting plate 6 is connected through threads; by rotating the handle, the threaded rod 11 rotates on connecting rod 2, and simultaneously drives the limiting plate 6 to slide on the small through hole of connecting rod 2.

[0025] The clamping grooves 5 are T-shaped; a guardrail assembly 7 is arranged on the clamping grooves 5; the guardrail assembly 7 comprises a guardrail rod 9; clamping blocks 10 matched with the clamping grooves 5 are fixedly connected to both ends of the guardrail rod 9; by holding the guardrail rod 9, the clamping blocks 10 at both ends of the guardrail rod 9 are arranged in the clamping grooves 5 of the two connecting blocks 3; then the limiting plate 6 is matched with the connecting blocks 3 by rotating the threaded rod 11, so as to fix the clamping blocks 10 on the clamping grooves 5, and the installation of the guardrail is further realized.

[0026] A plurality of reflecting sheets 15 are arranged on the outer wall of connecting rod 2; the reflecting sheets 15 can reflect light back to the light source in dim or weak light environment, so as to produce excellent light reflection effect and warning effect.

[0027] A warning light 16 is arranged on the top of the rotating disc 13; the warning light 16 can remind the driver to pay attention to the road boundary and potential dangerous area by bright light effect.

[0028] In summary, the guardrail for road and bridge construction, according to the use demand prepares several groups the device, determines the device starting point, then places the connecting rod 2 at the starting point, and according to the guardrail rod 9 length places the next connecting rod 2, then hand holds the guardrail rod 9 and places the clamping block 10 on the clamping groove 5 of the connecting block 3, sequentially places the connecting rod 2 and the guardrail rod 9, until to the length of the formed guardrail, then rotates the rotating disc 13, makes the threaded rod 11 drive the limiting block close to the connecting block 3, until to contact, so that the clamping block 10 is fixed in the clamping groove 5, installs the expansion bolt or ground nail on the fixed hole 14 of the base 1, connects the base 1 with the ground, makes the base 1 fixed.

[0029] Since the guardrail assembly 7 can be disassembled on the connecting rod 2, the whole is stacked, in the transportation process, the occupied space is reduced, and the installation personnel is convenient to carry.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A protective fence for road and bridge construction comprising a base (1), characterized in that: The top of base (1) is fixedly connected with connecting rod (2), the side of connecting rod (2) is provided with rectangular through hole, a plurality of evenly distributed connecting blocks (3) fixedly connected with connecting rod (2) are arranged on rectangular through hole, the top of connecting block (3) is provided with clamping slot (5) on both sides, and the top is provided with through hole (4) in the middle, the top of connecting block (3) is placed with limiting plate (6) slidably connected with the rectangular through hole on connecting rod (2), the connecting rod (2) is rotatably connected with threaded assembly (8) penetrating through the through hole (4) and being threadedly connected with the limiting plate (6), the clamping slot (5) is plug-connected with guardrail assembly (7), the limiting plate (6) can be driven to slide on the rectangular through hole of connecting rod (2) by rotating threaded assembly (8), and guardrail assembly (7) is limited on connecting block (3).

2. The guardrail for road and bridge construction according to claim 1, characterized in that: The guardrail assembly (7) comprises guardrail rod (9), both ends of the guardrail rod (9) are fixedly connected with the clamping block (10) matched with the clamping slot (5), and the clamping slot (5) is provided in T shape.

3. The guardrail for road and bridge construction according to claim 1, characterized in that: The threaded assembly (8) comprises threaded rod (11), the outer wall of threaded rod (11) near both ends is provided with smooth part, and the rotating block (12) is connected on the smooth part, and the one end of threaded rod (11) is provided with rotating disc (13).

4. The guardrail for road and bridge construction of claim 1, wherein: A plurality of evenly distributed fixing holes (14) are formed on the base (1).

5. The guardrail for road and bridge construction of claim 1, wherein: A plurality of reflecting sheets (15) are mounted on the outer wall of connecting rod (2).

6. The guardrail for road and bridge construction according to claim 3, characterized in that: The top of rotating disc (13) is provided with warning light (16).

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