Construction site foundation safety fence

Abstract

The utility model relates to the technical field of safety fences, in particular to a construction site foundation safety fence which comprises a first frame, one side of the first frame is rotationally connected with a second frame through a first hinge, and the other side of the first frame is rotationally connected with a third frame through a second hinge. Positioning support lugs are arranged on the outer walls of the stand columns, first support lugs are arranged at the ends, away from the first frame, of the third frame and the second frame, and fastening bolts penetrate through the positions between the first support lugs and the positioning support lugs. Through the arrangement of the folding structure, a traditional single screen plate is divided, and the screen plate is formed by folding and splicing three screen plates with small lengths, so that when the screen plate is carried, the area of the screen plate can be reduced through folding, a single person can carry the screen plate conveniently, and meanwhile, when the screen plate is installed and positioned, the screen plate is small in area and size, convenient to carry and convenient to use. The position adjustment is more convenient, and the requirement of single-person operation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of safety fences, in particular to a foundation safety fence for a construction site. Background Art

[0002] Foundation pit fence is a fence system specially used to enclose the foundation pit of construction site. The foundation pit refers to the underground space excavated during the construction process, which is used for temporary storage of materials and equipment or for basic engineering construction. The function of the foundation pit fence is to ensure the safety around the foundation pit and prevent people or objects from falling into the foundation pit. It is one of the commonly used protection systems on construction sites.

[0003] The existing foundation pit fence is mainly composed of two parts: a protective mesh plate and a column. The size of the protective mesh plate is fixed, and it is a longer mesh plate structure. When it is transported, it is inconvenient due to its long size. When it is installed and positioned, it is inconvenient for one person to adjust due to its large area, so its installation and positioning requires the cooperation of multiple people to complete. Utility Model Content

[0004] The purpose of the utility model is to provide a construction site foundation safety fence to solve the problem raised in the above background technology that it is inconvenient to carry due to its long size, and when installing and positioning, it is inconvenient for one person to adjust due to its large area, so that its installation and positioning requires the cooperation of multiple people to complete.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a construction site foundation safety fence, comprising:

[0006] A first frame, one side of the first frame is rotatably connected to the second frame via a first hinge, and the other side of the first frame is rotatably connected to the third frame via a second hinge;

[0007] The column has a positioning lug on its outer wall, the third frame and the second frame are both provided with a first lug at one end away from the first frame, and a fastening bolt is passed through between the first lug and the positioning lug.

[0008] Preferably, the frame structures of the first frame, the second frame and the third frame are the same, the inner walls of the first frame, the second frame and the third frame are all connected with metal meshes, and the bottom outer walls of the first frame, the second frame and the third frame are all connected with warning plates.

[0009] Preferably, the first hinge is located on a side of the first frame located at the warning plate, the second hinge is located on a side of the first frame away from the warning plate, and rotation grooves are provided on the first frame corresponding to the first hinge and the second hinge.

[0010] Preferably, two sets of the first hinge and the second hinge are provided. The second frame and the first frame are rotatably connected at 180 degrees through the first hinge, and the first frame and the third frame are rotatably connected at 180 degrees through the second hinge.

[0011] Preferably, guide grooves are formed at the four corners of the first frame, and positioning pins penetrate through the interiors of the guide grooves. One end of each positioning pin is fixedly connected to a lever. The lever has a T-shaped structure, and the hand-held end of the lever is located outside the first frame.

[0012] Preferably, a first positioning hole adapted to the positioning pin is formed at one end of the third frame close to the first frame, and a second positioning hole adapted to the positioning pin is formed at one end of the second frame close to the first frame. The positioning pins are respectively inserted into the interiors of the first positioning hole and the second positioning hole.

[0013] Preferably, the positioning pin has a rectangular structure. When the positioning pin is inserted into the first frame and the third frame, the first frame, the second frame, and the third frame are on the same horizontal plane.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the setting of the folding structure, the traditional single mesh plate is divided, and it is formed by folding and splicing three mesh plates with smaller lengths. Therefore, when the mesh plate is carried, its area can be reduced through folding, which is convenient for a single person to carry and operate. At the same time, when installing and positioning, its small area size also makes it more convenient to adjust its position, meeting the requirements of single-person operation. Its area can be fully expanded to the full size through rotation, and the operation is simple and convenient. At the same time, the positioning pins are used to assist in inserting and positioning the expanded mesh plate to ensure the stability and wind resistance of the mesh plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the distribution of the first hinge of the present utility model;

[0016] Figure 2 is the overall structural schematic diagram of the distribution of the second hinge of the present utility model;

[0017] Figure 3 is the partial exploded structural schematic diagram of the present utility model;

[0018] Figure 4 is the sectional structural schematic diagram of the present utility model;

[0019] Figure 5 is of the present utility model Figure 4 enlarged structural schematic diagram of A therein;

[0020] Figure 6 is of the present utility model Figure 4 Schematic diagram of the enlarged structure of B.

[0021] In the figure: 1, column; 11, positioning ear; 2, first frame; 3, second frame; 4, first hinge; 5, third frame; 6, second hinge; 7, positioning pin; 71, lever; 8, metal mesh; 9, warning plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides an embodiment: a construction site foundation safety fence, comprising:

[0024] A first frame 2, one side of the first frame 2 is rotatably connected to a second frame 3 via a first hinge 4, and the other side of the first frame 2 is rotatably connected to a third frame 5 via a second hinge 6. The first hinge 4 and the second hinge 6 have the same structural model, and are rotated 180 degrees to facilitate the folding and storage of the second frame 3 and the third frame 5. The above parts together constitute a protective mesh component;

[0025] The column 1 has a positioning lug 11 on its outer wall, the third frame 5 and the second frame 3 are both provided with a first lug at one end away from the first frame 2, and a fastening bolt is passed through the first lug and the positioning lug 11. Through this connection, the installation and positioning of the mesh panel is achieved, and the mesh panel can be unfolded and positioned after installation.

[0026] Furthermore, the frame structures of the first frame 2, the second frame 3 and the third frame 5 are the same, the inner walls of the first frame 2, the second frame 3 and the third frame 5 are all connected with a metal mesh 8, and the bottom outer wall surfaces of the first frame 2, the second frame 3 and the third frame 5 are all connected with a warning plate 9. The installation of the warning plate 9 and the warning plate 9 further forms a protective mesh plate structure, and the setting of the warning plate 9 plays a good warning role.

[0027] Furthermore, the first hinge 4 is located on the side of the first frame 2 located at the warning plate 9, and the second hinge 6 is located on the side of the first frame 2 away from the warning plate 9, and rotation grooves are provided on the first frame 2 corresponding to the first hinge 4 and the second hinge 6. By providing the rotation grooves, the first hinge 4 and the second hinge 6 are installed in an implicit manner, thereby further improving the stability of folding.

[0028] Furthermore, there are two sets of the first hinge 4 and the second hinge 6 respectively. The second frame 3 and the first frame 2 are rotatably connected at 180 degrees through the first hinge 4, and the first frame 2 and the third frame 5 are rotatably connected at 180 degrees through the second hinge 6.

[0029] Furthermore, guide grooves are provided at the four corners of the first frame 2, and positioning pins 7 penetrate through the inside of the guide grooves. One end of the positioning pin 7 is fixedly connected with a lever 71. The lever 71 has a cross-shaped structure, and the hand-held end of the lever 71 is outside the first frame 2. A first positioning hole adapted to the positioning pin 7 is provided at one end of the third frame 5 close to the first frame 2, and a second positioning hole adapted to the positioning pin 7 is provided at one end of the second frame 3 close to the first frame 2. The positioning pins 7 are respectively inserted into the first positioning hole and the second positioning hole. The positioning pins 7 have a rectangular structure. When the positioning pins 7 are inserted into the first frame 2 and the third frame 5, the first frame 2, the second frame 3 and the third frame 5 are on the same horizontal plane. Through the insertion of the positioning pins 7, the stability of the first frame 2, the second frame 3 and the third frame 5 after being unfolded can be ensured, the wind resistance of its rotating parts can be reduced, so that the first frame 2, the second frame 3 and the third frame 5 present an integrated support, and at the same time, its overall wind resistance effect and stability are improved.

[0030] Working principle: The columns 1 used in this application are all products that can be directly purchased on the market, and their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here. When this utility model is in use, first, the first lugs at the ends of the second frame 3 and the third frame 5 are connected with the positioning lugs 11 respectively, and then the first frame 2, the second frame 3 and the third frame 5 are further unfolded to make them on the same horizontal plane. Further, by拨动 the lever 71, the positioning pins 7 are inserted into them to realize the stable reinforcement of their unfolding.

[0031] For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of this utility model, this utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of this utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in this utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A construction site foundation safety fence, characterized in that: Including: A first frame (2), one side of the first frame (2) is rotatably connected to a second frame (3) through a first hinge (4), and the other side of the first frame (2) is rotatably connected to a third frame (5) through a second hinge (6); A column (1), a positioning support ear (11) is arranged on the outer wall of the column (1), first support ears are arranged at one ends of the third frame (5) and the second frame (3) far from the first frame (2), and a fastening bolt penetrates between the first support ear and the positioning support ear (11).

2. A construction site foundation safety fence according to claim 1, characterized in that: The frame structures of the first frame (2), the second frame (3) and the third frame (5) are the same. Metal meshes (8) are connected to the inner walls of the first frame (2), the second frame (3) and the third frame (5), and warning plates (9) are connected to the bottom outer wall surfaces of the first frame (2), the second frame (3) and the third frame (5).

3. A construction site foundation safety fence according to claim 1, characterized in that: The first hinge (4) is on one side of the first frame (2) where the warning plate (9) is located, the second hinge (6) is on the side of the first frame (2) far from the warning plate (9), and rotation grooves are opened on the first frame (2) corresponding to the first hinge (4) and the second hinge (6).

4. A construction site foundation safety fence according to claim 1, characterized in that: Two groups of the first hinge (4) and the second hinge (6) are provided. The second frame (3) and the first frame (2) are rotatably connected at 180 degrees through the first hinge (4), and the first frame (2) and the third frame (5) are rotatably connected at 180 degrees through the second hinge (6).

5. A construction site foundation safety fence according to claim 1, characterized in that: Guide grooves are opened at four corners of the first frame (2), and positioning pins (7) penetrate through the inside of the guide grooves. One end of the positioning pin (7) is fixedly connected to a lever (71). The lever (71) has a cross-shaped structure, and the hand-held end of the lever (71) is outside the first frame (2).

6. A construction site foundation safety fence according to claim 5, characterized in that: A first positioning hole adapted to the positioning pin (7) is opened at one end of the third frame (5) close to the first frame (2), a second positioning hole adapted to the positioning pin (7) is opened at one end of the second frame (3) close to the first frame (2), and the positioning pin (7) is respectively inserted into the first positioning hole and the second positioning hole.

7. A construction site foundation safety fence according to claim 5, characterized in that: The positioning pin (7) has a rectangular structure. When the positioning pin (7) is inserted into the first frame (2) and the third frame (5), the first frame (2), the second frame (3) and the third frame (5) are on the same horizontal plane.

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