Fabricated protective barrier

Abstract

The utility model belongs to the technical field of construction protective barriers, and discloses an assembly type protective barrier which comprises foundation pit foundation concrete, vertical stand column steel pipes are installed at the two ends of the top face of the foundation pit foundation concrete correspondingly, preformed holes are formed in the two ends of the top face of the foundation pit foundation concrete correspondingly, and connecting plates are fixedly connected to the bottoms of the stand column steel pipes; the stand column steel pipes are hollow, nuts are welded to the top faces of the connecting plates, embedded bolts are installed in the preformed holes and are in threaded connection with the nuts, and two foundation pit protective railings are movably connected between the two stand column steel pipes. And the device has the characteristics of reusability, low cost, high standardization degree and the like.

Description

Technical Field

[0001] The present application relates to the technical field of construction guardrails, and more specifically, to an assembled guardrail. Background Art

[0002] In recent years, the country has attached increasing importance to project safety, and the standardized requirements for safety protection have become increasingly higher. According to the requirements of relevant safety documents, protective railings must be installed around all pits at the construction site.

[0003] The traditional method of installing guardrails at construction sites is to drive the guardrail posts directly into the soil layer around the pit for fixation, and then install horizontal railings on the posts. The guardrails installed using this method have a lateral bearing capacity that is difficult to meet the 1000N requirement specified in the specification. At the same time, the guardrail line is not straight and the height difference at the top of the post is large, making it difficult to meet the standardization requirements of site safety protection.

[0004] In order to solve the above problems, the present application provides an assembled guardrail. Utility Model Content

[0005] The present application provides an assembled guardrail adopting the following technical solution:

[0006] A prefabricated guardrail comprises foundation pit concrete, both ends of the top surface of the foundation pit concrete are installed with vertical column steel pipes, both ends of the top surface of the foundation pit concrete are provided with reserved holes, the bottom of the column steel pipe is fixedly connected with a connecting plate, the interior of the column steel pipe is hollow, a nut is welded with a nut on the top surface of the connecting plate, embedded bolts are installed in the reserved holes, and the embedded bolts are threadedly connected with the nuts, two foundation pit guardrails are movably connected between the two column steel pipes, and a plurality of reinforcing ribs are fixedly connected between the top surface of the connecting plate and the outer periphery of the column steel pipe.

[0007] Through the above technical scheme, the guardrail of the present application can not only meet the lateral bearing capacity requirements specified in the specifications, but also ensure straight lines, flat heights, easy installation and disassembly, and has the characteristics of being reusable, low cost, and highly standardized.

[0008] Furthermore, a connecting block is fixedly connected to one side of the foundation pit foundation concrete, and mounting blocks are fixedly connected to the upper and lower ends of the other side, and the top surfaces of the connecting block and the mounting block are both provided with connecting threaded holes.

[0009] Through the above technical solution, several foundation pit foundation concretes can be connected through connecting blocks and mounting blocks, so that several foundation pit foundation concretes are in a straight line.

[0010] Furthermore, a through hole is opened on the side of the column steel pipe, the foundation pit protection railing is arranged in the through hole, and the column steel pipe is provided with a limiting mechanism.

[0011] Through the above technical solution, the foundation pit guardrail is installed through the through hole.

[0012] Furthermore, the limiting mechanism includes a threaded rod, a limiting plate and a limiting tube. The limiting tube is arranged in the through hole, and the foundation pit protection railing and the limiting tube. The outer periphery of the column steel pipe is threadedly connected with the threaded rod, and the threaded rod is rotatably connected with the limiting plate.

[0013] Through the above technical solution, the threaded rod is rotated to make the limit plate close to the limit tube and clamp the limit tube. The limit tube is a rubber tube that is squeezed so that the foundation pit guardrail can be limited and clamped.

[0014] Furthermore, the limiting plate is an arc-shaped plate, and the limiting plate conflicts with the limiting tube.

[0015] Through the above technical solution, the arc plate can fit the limiting pipe more closely, which is beneficial to the clamping and limiting of the limiting pipe and the foundation pit guardrail.

[0016] Furthermore, a plurality of positioning threaded holes 1 are provided on both sides of the top surface of the foundation pit concrete, a plurality of positioning threaded holes 2 are provided on the top surface of the connecting plate, and positioning bolts are threadedly connected to the top surface of the connecting plate.

[0017] Through the above technical solution, the connection plate can be installed by installing the positioning bolts into the positioning threaded hole one and the positioning threaded hole two, thereby limiting the installation of the column steel pipe.

[0018] Furthermore, there are four positioning threaded holes 2 and four positioning threaded holes 1, and the four positioning threaded holes 2 and four positioning threaded holes 1 are symmetrically distributed about the center line of the foundation pit foundation concrete.

[0019] Through the above technical solution, the positioning threaded holes are evenly distributed and reasonably arranged, which can make the connection between the column steel pipe and the foundation pit foundation concrete tighter.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] The guardrail of the present application can not only meet the lateral bearing capacity requirements specified in the specifications, but also ensure straight lines, even heights, easy installation and disassembly, and has the characteristics of being reusable, low cost, and highly standardized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 A partial cross-sectional view of the present application;

[0024] Figure 3 This is a schematic diagram of the concrete structure of the foundation pit of this application;

[0025] Figure 4 This is a schematic diagram of the connection plate structure of this application;

[0026] Figure 5 This is a schematic diagram of the limit mechanism structure of this application.

[0027] Description of the numbers in the figure:

[0028] 1. Foundation pit concrete; 2. Column steel pipe; 3. Foundation pit guardrail; 4. Reserved holes; 5. Embedded bolts; 6. Connecting plates; 7. Nuts; 8. Connecting blocks; 9. Mounting blocks; 10. Connecting threaded holes; 11. Positioning bolts; 12. Reinforcement ribs; 13. Limiting tubes; 14. Threaded rods; 15. Positioning threaded hole one; 16. Positioning threaded hole two; 17. Through holes; 18. Limiting plates. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Example:

[0033] The present application embodiment discloses an assembled guardrail. Figure 1 , Figure 2 and Figure 3 , including foundation pit foundation concrete 1, vertical column steel pipes 2 are installed at both ends of the top surface of the foundation pit foundation concrete 1, reserved holes 4 are opened at both ends of the top surface of the foundation pit foundation concrete 1, the bottom of the column steel pipe 2 is fixedly connected with a connecting plate 6, the column steel pipe 2 is hollow inside, a nut 7 is welded on the top surface of the connecting plate 6, embedded bolts 5 are installed in the reserved holes 4, and the embedded bolts 5 are threadedly connected with the nuts 7, two foundation pit guardrails 3 are movably connected between the two column steel pipes 2, and a number of reinforcing ribs 12 are fixedly connected between the top surface of the connecting plate 6 and the outer periphery of the column steel pipe 2. The reinforcing ribs 12 can enhance the stability of the column steel pipe 2 and can resist impacts from different directions to a certain extent.

[0034] See also Figure 3 and Figure 4 A connecting block 8 is fixedly connected to one side of the foundation pit foundation concrete 1, and mounting blocks 9 are fixedly connected to the upper and lower ends of the other side. The top surfaces of the connecting block 8 and the mounting block 9 are provided with connecting threaded holes 10. Through the connecting block 8 and the mounting block 9, several foundation pit foundation concretes 1 can be connected, so that several foundation pit foundation concretes 1 are conveniently in a straight line;

[0035] A plurality of positioning threaded holes 15 are provided on both sides of the top surface of the foundation pit concrete 1, a plurality of positioning threaded holes 2 16 are provided on the top surface of the connecting plate 6, and the top surface of the connecting plate 6 is threadedly connected with positioning bolts 11. By installing the positioning bolts 11 into the positioning threaded holes 15 and the positioning threaded holes 2 16, the connecting plate 6 can be installed, thereby limiting the installation of the column steel pipe 2. There are four positioning threaded holes 2 16 and four positioning threaded holes 15, and the four positioning threaded holes 2 16 and the positioning threaded holes 15 are symmetrically distributed about the center line of the foundation pit concrete 1. The positioning threaded holes 15 are evenly distributed and reasonably laid out, so that the connection between the column steel pipe 2 and the foundation pit concrete 1 can be made tighter.

[0036] See also Figure 1 and Figure 5A through hole 17 is opened on the side of the column steel pipe 2, and the foundation pit protection railing 3 is arranged in the through hole 17. The column steel pipe 2 is provided with a limiting mechanism, which includes a threaded rod 14, a limiting plate 18 and a limiting tube 13. The limiting tube 13 is arranged in the through hole 17, and the foundation pit protection railing 3 and the limiting tube 13, the outer periphery of the column steel pipe 2 is threadedly connected with a threaded rod 14, and the threaded rod 14 is rotatably connected to the limiting plate 18, and the threaded rod 14 is rotated to make the limiting plate 18 close to the limiting tube 13 and clamp the limiting tube 13. The limiting tube 13 is a rubber tube, which is squeezed so that the foundation pit protection railing 3 can be limited and clamped. The limiting plate 18 is an arc plate, and the limiting plate 18 conflicts with the limiting tube 13. The arc plate can fit the limiting tube 13 more closely, which is beneficial to the clamping and limiting of the limiting tube 13 and the foundation pit protection railing 3.

[0037] The implementation principle of this embodiment is as follows: 1. First, a strip of foundation pit foundation concrete 1 is cast on the support formwork around the foundation pit, and at the same time, a pre-buried bolt 5 is buried every two meters in the strip foundation. The key to the construction here is to ensure that the top of the strip foundation is flat and the threaded steel wire head is partially buried in the concrete;

[0038] 2. After the strip foundation reaches the required strength, screw the column steel pipe 2 with the nut 7 base into the pre-buried bolts 5 so that it is tightly attached to the top of the foundation pit concrete 1;

[0039] 3. Insert the foundation pit guardrail 3 into the limiting tube 13, then screw the threaded rod 14 to make the limiting plate 18 close to the limiting tube 13 and clamp the limiting tube 13. The limiting tube 13 is a rubber tube, which is squeezed so that the foundation pit guardrail 3 can be limited and clamped.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An assembled guardrail, comprising foundation pit concrete (1), characterized in that: Vertical column steel pipes (2) are installed at both ends of the top surface of the foundation pit concrete (1), and reserved holes (4) are opened at both ends of the top surface of the foundation pit concrete (1). A connecting plate (6) is fixedly connected to the bottom of the column steel pipe (2). The column steel pipe (2) is hollow inside, and a nut (7) is welded to the top surface of the connecting plate (6). An embedded bolt (5) is installed in the reserved hole (4), and the embedded bolt (5) is threadedly connected to the nut (7). Two foundation pit guard rails (3) are movably connected between the two column steel pipes (2), and a plurality of reinforcing ribs (12) are fixedly connected between the top surface of the connecting plate (6) and the outer periphery of the column steel pipe (2).

2. The assembled guardrail according to claim 1, characterized in that: A connection block (8) is fixedly connected to one side of the foundation pit concrete (1), while upper and lower ends of the other side are fixedly connected to mounting blocks (9), and the top surfaces of the connection block (8) and the mounting block (9) are both provided with connection threaded holes (10).

3. The assembled guardrail according to claim 1, characterized in that: A through hole (17) is provided on the side of the column steel pipe (2), the foundation pit protection railing (3) is arranged in the through hole (17), and the column steel pipe (2) is provided with a limiting mechanism.

4. The assembled guardrail according to claim 3, characterized in that: The limiting mechanism comprises a threaded rod (14), a limiting plate (18) and a limiting tube (13); the limiting tube (13) is arranged in the through hole (17), and the foundation pit protection railing (3) and the limiting tube (13); the outer periphery of the column steel pipe (2) is threadedly connected to the threaded rod (14), and the threaded rod (14) is rotatably connected to the limiting plate (18).

5. The assembled guardrail according to claim 4, characterized in that: The limiting plate (18) is an arc-shaped plate, and the limiting plate (18) is in conflict with the limiting tube (13).

6. The assembled guardrail according to claim 1, characterized in that: A plurality of first positioning threaded holes (15) are provided on both sides of the top surface of the foundation pit foundation concrete (1), a plurality of second positioning threaded holes (16) are provided on the top surface of the connecting plate (6), and a positioning bolt (11) is threadedly connected to the top surface of the connecting plate (6).

7. The assembled guardrail according to claim 6, characterized in that: The number of the second positioning threaded hole (16) and the number of the first positioning threaded hole (15) are both four, and the four second positioning threaded holes (16) and the four first positioning threaded holes (15) are symmetrically distributed about the center line of the foundation pit concrete (1).

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