A novel detachable and reusable edge protection device

Abstract

This utility model provides a novel detachable and reusable edge protection device. Its structure includes a steel pipe and tightening mechanisms at both ends of the steel pipe. The tightening mechanism includes a screw, a cylindrical fastener, a nut, a square tube, and a fastener. The fastener is welded to one side wall of the square tube, and the end of the steel pipe is fixedly connected to the square tube via the fastener. The nut is welded to the other side wall of the square tube opposite the fastener. The screw passes through the nut, and its end facing the wall is fixedly connected to the cylindrical fastener. Rotating the screw tightens the end of the cylindrical fastener against the wall. The edge protection device provided by this utility model is installed inside the window opening of an exterior wall. It is easy to disassemble and can be reused. It can be quickly installed after the construction work around the window opening is completed, saving construction costs and improving edge protection safety. Installation and disassembly can be performed by a single person, which is convenient and quick, effectively saving labor and achieving good economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a novel detachable and reusable edge protection device. Background Technology

[0002] During construction, it is typically necessary to install guardrails around unfinished floor edges, openings, elevator shafts, and other hazardous or protected areas; this is known as edge protection. Edge protection is a crucial measure to ensure the safety of construction workers, therefore, the quality of its installation must be guaranteed.

[0003] Traditional edge protection methods involve using steel pipes to form a frame, which is then fixed to the wall with expansion bolts. This approach can damage the structural wall; furthermore, the edge protection needs to be dismantled during secondary structure and plastering construction, and then re-erected after the masonry work is completed, resulting in a waste of manpower and resources. Moreover, since expansion bolts and other tools are disposable devices, they cannot be reused, increasing material costs. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of detachable and reusable edge protection device to solve the problems of existing edge protection devices requiring expansion bolts for fixing, which can damage the wall, and the inconvenience of dismantling, which wastes manpower and resources.

[0005] This utility model is implemented as follows:

[0006] A novel detachable and reusable edge protection device includes a steel pipe and a tightening mechanism at both ends of the steel pipe. The tightening mechanism includes a screw, a cylindrical fastener, a nut, a square tube, and a fastener. The fastener is welded to one side wall of the square tube, and the end of the steel pipe is fixedly connected to the side wall of the square tube through the fastener. The nut is welded to the other side wall of the square tube opposite to the fastener. The screw passes through the nut, and the end of the screw facing the wall is fixedly connected to the cylindrical fastener. Rotating the screw can tighten the end of the cylindrical fastener against the wall.

[0007] In the above scheme, preferably, each tightening mechanism has two screws and four nuts; each screw passes through two nuts, and the two screws are arranged in parallel.

[0008] In the above scheme, preferably, the cylindrical fastener is a cylindrical steel structure, and the end of the cylindrical fastener away from the wall is provided with an annular plug. The screw passes through the central through hole of the annular plug and extends into the cylindrical fastener. A first plug and a second plug are respectively welded on both sides of the annular plug on the screw.

[0009] In the above scheme, preferably, both the first plug and the second plug are nut structures.

[0010] In the above scheme, preferably, the cylindrical fastener has uniform radial grooves on one end face near the wall.

[0011] In the above scheme, preferably, a handle is provided at the end of the screw away from the wall.

[0012] In the above scheme, preferably, the steel pipe is a φ48mm steel pipe, and the square tube is a 40mm×40mm×3mm square tube.

[0013] The edge protection device provided by this utility model uses square tubing (e.g., 40×40×3mm) and prefabricated fasteners for its main frame, in conjunction with prefabricated steel pipes on site. Before installation, the fixing position of the steel pipe is determined according to the width of the window or opening. The steel pipe is then fastened to the side wall of the square tubing using fasteners, and subsequently fixed to the side walls at the window or opening location using bolts and cylindrical fasteners at their ends. This device is suitable for edge protection. On-site adjustments can be made according to the width of the window or opening to achieve a secure installation of the edge protection device.

[0014] The edge protection device provided by this utility model is installed on the inside of the window opening on the exterior wall. It is easy to disassemble, can be reused, and can be quickly installed after the construction around the window opening is completed, saving construction costs and improving the safety of edge protection. During installation and disassembly, a single person can operate the device, which is convenient and quick, effectively saving labor and achieving good economic benefits due to its reusability. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the screw and the cylindrical fastener in this utility model.

[0017] Figure 3 This is a schematic diagram of the end face structure of a cylindrical fastener.

[0018] In the diagram: 1. Screw; 1-1. First plug; 1-2. Second plug; 1-3. Handle; 2. Nut; 3. Cylindrical fastener; 3-1. Annular seal; 3-2. Groove; 4. Wall; 5. Fastener; 6. Square tube; 7. Steel pipe. Detailed Implementation

[0019] The technical solution of this utility model will now be described in conjunction with the accompanying drawings.

[0020] like Figure 1As shown, the novel detachable and reusable edge protection device provided by this utility model includes a steel pipe 7 for protection. The two ends of the steel pipe 7 are respectively tightened to the walls 4 on both sides of the window opening of the building by a tightening mechanism. The steel pipe 7 is horizontally intercepted at the window opening, thereby playing the role of edge protection.

[0021] Each tightening mechanism includes two screws 1, two cylindrical fasteners 3, four nuts 2, a square tube 6, and a fastener 5. The square tube 6 is typically a 40mm × 40mm × 3mm square tube with its opening facing upwards. A nut 2 is welded to each of the four corners of the rear side wall of the square tube 6. One screw 1 passes laterally through the two upper nuts 2, and the other screw passes laterally through the two lower nuts 2. Each screw 1 is connected to the square tube 6 via two nuts 2. The screws 1 can be φ12mm screws. Rotating the screws 1 allows them to move left and right. Because... Figure 1 It is a top view, so only the top screw 1 is shown.

[0022] Fasteners 5 are welded to the other side wall (front side wall) of the square tube 6, opposite to the four nuts 2. Fasteners 5 are purchased finished parts, and the end of the steel tube 7 is fixed to the fasteners 5, thereby achieving a fixed connection between the end of the steel tube 7 and the front side wall of the square tube 6. The steel tube 7 is usually made of φ48mm steel.

[0023] The screw 1 passes through two nuts 2 and is connected to a cylindrical fastener 3 at its end facing the wall 4. (Connection) Figure 2 The cylindrical fastener 3 is a cylindrical steel structure. An annular seal 3-1, also made of steel plate, is welded along the edge of one end face of the cylindrical fastener 3. One end of the screw 1 passes through the central through-hole of the annular seal 3-1 and extends into the cylindrical fastener 3. To connect the end of the screw 1 to the cylindrical fastener 3, a first plug 1-1 and a second plug 1-2 are welded to the screw 1 on both sides of the annular seal 3-1. The first plug 1-1 is located inside the cylindrical fastener 3, and the second plug 1-2 is located outside the cylindrical fastener 3. The first plug 1-1 and the second plug 1-2 are respectively engaged with the annular seal 3-1. Due to the presence of the first plug 1-1 and the second plug 1-2, the end of the screw 1 will not fall out of the cylindrical fastener 3, thus achieving a fixed connection between the end of the screw 1 and the cylindrical fastener 3. In this invention, both the first plug 1-1 and the second plug 1-2 are nut structures.

[0024] During installation, to facilitate installation and welding, a first plug 1-1 can be welded to the end of the screw 1 first. Then, the other end of the screw 1 passes through the cylindrical fastener 3, so that the first plug 1-1 is engaged with the annular seal 3-1. Then, a second plug 1-2 is welded to the screw 1 on the outside of the annular seal 3-1, adjacent to the annular seal 3-1. Simultaneously, the screw 1 passes through the cylindrical fastener 3 and also through two nuts 2 welded to the square tube 6. To facilitate the rotation of the screw 1, after passing through the two nuts 2, the end of the screw 1 is bent to form a circular handle 1-3.

[0025] Handles 1-3 and cylindrical fasteners 3 are located at both ends of screw 1, with the cylindrical fasteners 3 facing the wall 4. By simultaneously rotating the upper and lower screws 1, the two screws 1 are moved towards the wall 4, allowing the cylindrical fasteners 3 to rest against the wall 4. Then, by rotating the two screws 1 on the other side, the friction between the end faces of the four cylindrical fasteners 3 and the wall 4 is used to achieve a fixed connection between the screws 1 and the wall 4, further securing the steel pipe 7.

[0026] To increase the friction between the end of the cylindrical fastener 3 and the wall 4, a radial cut is made on the annular surface of the end of the cylindrical fastener 3 (the end opposite to the annular seal 3-1) to form a uniform groove 3-2, such as... Figure 3 As shown. This structural design of the present invention allows the steel pipe 7 to withstand an external impact of 1000N.

[0027] When disassembly is required, the cylindrical fastener 3 can be moved away from the wall 4 by rotating the screw 1, thus achieving disassembly. Installation and disassembly can be performed by a single person, saving manpower and resources. Moreover, this edge protection device will not damage the wall 4 and is very convenient for repeated use.

Claims

1. A novel detachable and reusable edge protection device, characterized in that, The device includes a steel pipe and a tightening mechanism at both ends of the steel pipe. The tightening mechanism includes a screw, a cylindrical fastener, a nut, a square tube, and a fastener. The fastener is welded to one side wall of the square tube, and the end of the steel pipe is fixedly connected to the side wall of the square tube through the fastener. The nut is welded to the other side wall of the square tube opposite to the fastener. The screw passes through the nut, and the end of the screw facing the wall is fixedly connected to the cylindrical fastener. Rotating the screw can tighten the end of the cylindrical fastener against the wall.

2. The novel detachable and reusable edge protection device according to claim 1, characterized in that, Each tightening mechanism has two screws and four nuts; the two screws are arranged in parallel, and each screw passes through two nuts.

3. The novel detachable and reusable edge protection device according to claim 1, characterized in that, The cylindrical fastener is a cylindrical steel structure. The end of the cylindrical fastener away from the wall is provided with an annular plug. The screw passes through the central through hole of the annular plug and extends into the cylindrical fastener. A first plug and a second plug are welded on both sides of the annular plug on the screw, respectively.

4. The novel detachable and reusable edge protection device according to claim 3, characterized in that, Both the first plug and the second plug are nut structures.

5. The novel detachable and reusable edge protection device according to claim 1, characterized in that, The cylindrical fastener has uniform radial grooves on one end face near the wall.

6. The novel detachable and reusable edge protection device according to claim 1, characterized in that, A handle is provided at the end of the screw that is away from the wall.

7. The novel detachable and reusable edge protection device according to claim 1, characterized in that, The steel pipe is a φ48mm steel pipe, and the square tube is a 40mm×40mm×3mm square tube.

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