CN209293557U - A foundation pit border guardrail - Google Patents

Abstract

The utility model discloses a protective fence on the edge of a foundation pit, which comprises a column, a telescopic fence, and a transverse telescopic rod. U-shaped connectors are arranged on both sides of the column, and the telescopic fence is hinged by a plurality of connecting rods through connecting shafts. Formed, the left and right sides of the telescopic fence are connected to the U-shaped connector A bolts on the column through the connecting rod, and the two sides of the horizontal telescopic rod are connected to the two adjacent column bolts through the U-shaped connector B. The base of the column is a prism base. The utility model adopts the structure of the telescopic fence and the horizontal telescopic rod, which can be appropriately telescopically adjusted according to the actual size of the foundation pit on site. The connection is more flexible, so as to better meet the protection needs of irregular foundation pits. The utility model has the advantages of convenient assembly and disassembly, and the disassembled telescopic fence takes up less space, has a high rate of reutilization, and is more practical on site.

Description

A foundation pit border guardrail

technical field

The utility model relates to the technical field of building construction, in particular to a protective fence on the edge of a foundation pit.

Background technique

During the construction process, since the depth of the excavated foundation pit is generally deep, according to the safe and civilized construction regulations, it is necessary to set up protective fences around the foundation pit to achieve the effect of safety warning and protection. At present, the edge guardrail mainly adopts the overall grid structure, and the shape of the enclosure after installation is generally rectangular, which cannot meet the needs of foundation pits with different shapes, which will easily cause waste of materials and labor resources. Secondly, most of the guardrails The installation process is complicated, and it is also more difficult in the later dismantling process.

Contents of the invention

The purpose of the utility model is to solve the shortcomings of the existing technology and provide a foundation pit border protection fence, which is easy to install and can be installed and protected according to the actual shape of the foundation pit on the construction site; it is convenient to disassemble and easy to store.

In order to achieve the above purpose, the utility model provides the following technical solutions: a foundation pit border protection fence is composed of a column, a telescopic fence, and a transverse telescopic rod, and U-shaped connectors A and U-shaped connectors are arranged on both sides of the column. B and the U-shaped connector A and U-shaped connector B on each side are all welded on the column. The telescopic fence is composed of connecting rods passing through the connecting shaft. The U-shaped connector A is bolted, and the horizontal expansion rod is connected to the two connected columns through the U-shaped connector B. The base of the column is a prism-shaped base, and each base is provided with 8 holes.

Further, the horizontal telescopic rod is composed of an outer rod and an inner rod. By loosening and tightening the bolts on the upper part of the outer rod, the movement and fixation of the inner rod can be realized, thereby realizing the expansion and contraction of the telescopic rod.

Further, the hole diameters of the connectors on the left and right sides of the telescopic fence are 5 mm larger than the diameter of the bolt C, and the diameters of the holes on the left and right sides of the horizontal telescopic rod are 5 mm larger than the diameter of the bolt B.

Further, the upright posts, telescopic fences, and horizontal telescopic poles are all high-strength and corrosion-resistant steel materials.

Further, the cross-section of the column is a rectangular cross-section.

Further, reflective strips are pasted on the surface of the telescopic fence and the column.

Further, the horizontal telescopic rods are arranged at the lower and middle positions of the uprights, and the height of the horizontal telescopic rods arranged in the middle of the uprights from the ground is 1.4m.

Beneficial effects of the utility model: the utility model can make the size of the foundation pit edge protection fence be adjusted according to the actual size of the foundation pit on the site through the structure of the telescopic fence and the transverse telescopic rod; the U-shaped column on the column The connector structure can make the telescopic fence and the horizontal telescopic pole rotate at a certain angle, so as to be suitable for the case where the center lines of two adjacent columns do not coincide, so that the connection between the column, the telescopic fence and the horizontal telescopic pole is more flexible, and thus more It can well meet the protection needs of irregular foundation pits. Reflective strips are pasted on the surface of the telescopic fence and the column, which is beneficial to play the role of safety warning. The height of the horizontal telescopic rod arranged in the middle of the column from the ground is 1.4m, which is higher than the center of gravity of the human body, which is more conducive to Personal safety is guaranteed, and the utility model has the advantages of simple installation and convenient disassembly. After disassembly, the telescopic fence takes up less space, is easy to store, has a high reuse rate, and has strong practicability on site.

Description of drawings

Fig. 1 is the front view structure diagram of the utility model.

Fig. 2 is a schematic diagram of the connection of the U-shaped connector A.

Fig. 3 is a schematic diagram of the structure of the horizontal telescopic rod.

Figure 4 is a schematic diagram of the structure of the column base.

Marks in the figure: 1. Post, 2. Telescopic fence, 3. Horizontal telescopic rod, 4. U-shaped connector A, 5. Connecting shaft, 6. Bolt A, 7. Base, 8. Bolt C, 9. Connecting rod , 10. U-shaped connector B, 11. Anti-pull insertion rod, 12. Inner rod, 13. Outer rod, 14. Connecting rod, 15. Bolt B.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

As shown in Figure 1, a foundation pit border protection fence includes a column (1), a telescopic fence (2), and a horizontal telescopic rod (3), wherein the left and right sides of the column (1) are welded with U-shaped connectors A (4) , U-shaped connector B (10), the telescopic fence (2) is hinged by several connecting rods (14) and connecting shafts (5), and the left and right sides of the telescopic fence (2) are connected to the uprights through the connecting rods (9) The U-shaped connector A (4) on (1) is connected by bolts. With reference to Fig. 3, the transverse expansion rod (3) is composed of an inner rod (12) and an outer rod (13), and the outer rod (13) has a fixed inner rod (13). The bolt A (6) of the rod (12); the left and right sides of the horizontal telescopic rod (3) are connected with the bolts of the vertical rod (1) through the U-shaped connector B (10). 7) It is a frustum-shaped base, and 8 anti-pull insertion rods (11) are installed around the base (7).

When using this utility model, first according to the size and shape of the foundation pit on site, place appropriate columns (1) along the periphery of the foundation pit, and then connect the connecting rods (9) on the left and right sides of each telescopic fence (2) with the adjacent two The U-shaped connectors A (4) on the two columns (1) are connected by bolts. When the cross-sectional centerline positions of two adjacent columns (1) do not coincide, the connection method of the U-shaped connectors can make the telescopic fence ( 2) Rotate horizontally at a certain angle, so that the connection of the guardrail on the side of the foundation pit is more flexible, which meets the protection needs of foundation pits of different shapes, and then the base (7) is fixed, and finally according to the two adjacent columns (1) The distance stretches the transverse telescopic rod (3), and connects with two adjacent columns (1) by bolts through a U-shaped connector B (10).

Concretely, the utility model connects the bolts of the telescopic fence (2) and the transverse telescopic rod (3) respectively through the structures of the U-shaped connector A (4) and the U-shaped connector B (10) on the left and right sides of the column (1). The connection can make the disassembly and assembly process of the utility model more convenient, and the above-mentioned connection method is more flexible and convenient, and the field is more practical; It is conducive to the effect of safety warning; the shape of the base (7) is truncated, and each base (7) is equipped with 8 anti-pull insertion rods (11) around it, which is conducive to enhancing the stability of the column (1) .

Claims (5)

1. A foundation pit border guardrail, is characterized in that, comprises column (1), telescopic fence (2), transverse expansion bar (3), and wherein described column (1) left and right sides are provided with U-shaped connector A (4) and U-shaped connector B (10), the telescopic fence (2) is hinged by several connecting rods (14) and connecting shafts (5), and the left and right sides of the telescopic fence (2) pass through the connecting rod (9) Bolted with the U-shaped connector A (4) on the column (1), the horizontal telescopic rod (3) is positioned at the side of the column (1), parallel to the telescopic fence, and connected with the bolt B (15) The U-shaped connectors B bolts on the columns (1) on the left and right sides are connected. The base (7) of the column (1) is a prism-shaped base, and 8 anti-pull insertion rods (11) are installed around the base (7). . 2. A protection fence on the edge of a foundation pit according to claim 1, characterized in that: said upright column (1), telescopic fence (2), and transverse telescopic rod (3) are all high-strength and corrosion-resistant steel materials. 3. A protection fence on the edge of a foundation pit according to claim 1, characterized in that: the surface of the telescopic fence (2) and the column (1) are all pasted with reflective strips. 4. A foundation pit border protection fence according to claim 1, characterized in that: said transverse telescopic rod (3) is composed of an outer rod (13) and an inner rod (12). The bolt A (6) on the top of the bar can realize the movement and fixation of the inner bar (12), thereby realizing the expansion and contraction of the transverse telescopic bar (3). 5. A foundation pit border guardrail according to claim 1, characterized in that: the transverse telescopic rod (3) is arranged at the lower and middle positions of the column (1), and at the position of the column (1) ) The height of the horizontal telescopic rod (3) arranged in the middle part from the ground is 1.4m.