Telescopic edge guardrail fixing device

Abstract

The utility model discloses a telescopic edge guardrail fixing device which comprises a U-shaped clamping frame horizontally buckled on a shear wall of a door and window opening of a building outer wall, the U-shaped clamping frame is defined by a bottom frame and a pair of side frames perpendicularly and fixedly connected to the two ends of the bottom frame, a connecting piece is fixedly connected to one side frame, a threaded through hole is formed in the connecting piece, and the threaded through hole is communicated with the U-shaped clamping frame. The axial direction of the threaded penetrating hole is consistent with the length direction of the bottom frame, a jacking screw is arranged in the threaded penetrating hole in a threaded connection and penetrating mode, the inner end of the jacking screw is provided with a rubber pad which abuts against the shear wall, the outer end of the jacking screw is provided with a fixing head, and a cross-shaped fastener is buckled to the fixing head. And the other buckle head of the cross-shaped fastener is fixed on a guardrail steel pipe on the outer side of the door and window opening of the outer wall of the building in a surrounding manner. The connecting device has the advantages that the connecting device can be easily fixed on the shear wall and can be easily connected with a guardrail steel pipe, physical damage to the shear wall and secondary damage after plastering are effectively avoided, the apparent quality of the shear wall is guaranteed, and the service life of the shear wall is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a telescopic edge guardrail fixing device specifically used in high-rise building construction. Background Technology

[0002] Edge railings are a very common safety protection facility for exterior wall and window openings on construction sites. Traditional edge railings use clamps and nails to fix the steel pipes to the shear wall, forming a protective railing across the exterior wall door and window openings. Nail work causes significant damage to the surface of the shear wall, and the nails need to be removed during subsequent plastering work. After plastering is completed, the nails are then re-applied to fix the steel pipes, causing secondary damage to the appearance of the shear wall. This not only damages the finished shear wall but also greatly increases labor and material costs, leading to rework in plastering, increasing the risk of safety hazards, and affecting the overall efficiency of construction work. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a telescopic edge guardrail fixing device specifically designed for high-rise building construction.

[0004] To achieve the above objectives, the present invention can adopt the following technical solution:

[0005] The telescopic edge guardrail fixing device of this utility model includes a U-shaped frame that is horizontally snapped onto the shear wall of the door and window opening of the building exterior wall. The U-shaped frame is formed by a bottom frame and a pair of side frames that are vertically fixed to both ends of the bottom frame. A connector is fixed to one of the side frames. The connector has a threaded hole. The axis of the threaded hole is consistent with the length direction of the bottom frame. A top support screw is threaded through the threaded hole. The inner end of the top support screw is provided with a rubber pad that presses against the shear wall. The outer end of the top support screw is provided with a fixing head. A cross fastener is snapped onto the fixing head. The other end of the cross fastener is ring-fixed to the guardrail steel pipe outside the door and window opening of the building exterior wall.

[0006] Furthermore, both the bottom frame and the side frame are made of angle steel with a diameter of ∠25×25×2mm, which makes it convenient to obtain materials directly from the construction site.

[0007] Furthermore, the rubber pad has anti-slip ribs evenly arranged on its top support surface, which can improve its friction when it is in contact with the shear wall.

[0008] The advantages of this utility model are that it can be easily fixed to the shear wall of the building's exterior door and window openings through the U-shaped frame and the top support screw with rubber pads at the end. At the same time, the cross fasteners that snap onto the fixing heads of the top support screws can be easily connected to the guardrail steel pipes, ensuring that the guardrail steel pipes are firmly positioned on the outside of the building's exterior door and window openings. This effectively avoids physical damage to the shear wall and secondary damage after plastering, ensures the appearance quality of the shear wall, extends the service life of the shear wall, reduces maintenance costs, reduces manpower, and enhances the safety of building construction. It has significant practical value and promising prospects for promotion. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 yes Figure 1 Top view.

[0011] Figure 3 yes Figure 1 Axonometric view of the U-shaped card frame.

[0012] Figure 4 yes Figure 3 Enlarged view of section A. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0015] like Figure 1-4 As shown, the telescopic edge guardrail fixing device of this utility model is mainly used in the construction of high-rise buildings. It includes a U-shaped frame 1, which is specifically formed by a bottom frame 1.1 and a pair of side frames 1.2 vertically fixed to both ends of the bottom frame 1.1. It can be horizontally fastened to the shear wall 100 at the edge of the door and window openings of the building exterior wall. In order to facilitate the direct acquisition of materials on the construction site, both the bottom frame 1.1 and the side frames 1.2 can be made of angle steel with a diameter of ∠25×25×2mm.

[0016] A connector 2 is fixedly connected to one of the side frames 1.2. The connector 2 has a threaded through hole. The axis of the threaded through hole is consistent with the length direction of the bottom frame 1.1. Specifically, a nut can be used as the connector 2 and vertically welded to the side frame 1.2. The screw hole on the nut is the threaded through hole. When welding, just make sure that the axis of the screw hole on the nut is parallel to the length direction of the bottom frame 1.1.

[0017] A support screw 3 is threaded through the threaded hole and fitted with a top support screw 3. The inner end of the support screw 3 is fitted with a rubber pad 4 that presses against the shear wall 100, and the outer end is fitted with a convenient gripping fixing head 5. By gripping the fixing head 5, the support screw 3 can be easily screwed on, ensuring that the rubber pad 4 at the inner end of the support screw 3 is tightly pressed against the shear wall 100, thus ensuring that the U-shaped clip frame 1 is securely fastened to the shear wall 100. Furthermore, to increase the friction when the rubber pad 4 is against the shear wall 100, anti-slip ribs 6, made of the same material and integrally formed, can be evenly arranged on the top support surface of the rubber pad 4.

[0018] In addition, a cross-shaped fastener 7 is also fastened to the fixing head 5. The cross-shaped fastener 7 is formed by two fasteners that are axially perpendicular and fixed together. One fastener is clamped on the fixing head 5, and the other fastener is ring-fixed to the guardrail steel pipe 200 that needs to be pre-installed on the outside of the door and window openings of the building exterior wall. This clamps and fixes the guardrail steel pipe 200, so that the guardrail steel pipe 200 can be stably mounted horizontally on the outside of the door and window openings of the building exterior wall to form a safety protection facility. This effectively avoids the physical damage to the shear wall 100 and the secondary damage after plastering when fixing the guardrail steel pipe 200 by the traditional method of using clamps and nails. It ensures the appearance quality of the shear wall 100, extends the service life of the shear wall 100, reduces maintenance costs, reduces manpower, and enhances the safety of building construction. It has significant practical value and promotion prospects.

[0019] In actual assembly: First, a 620mm long ∠25×25×2mm angle steel can be cut, bent and welded into a U-shaped frame 1 using a grinding wheel cutter and an electric welding machine. Ensure that the length of the two side frames 1.2 of the U-shaped frame 1 is 200mm and the length of the bottom frame 1.1 in the middle is 220mm (because the width of the shear wall 100 will increase after the plastering is completed, the length of the bottom frame 1.1 is 20mm longer than the thickness of the shear wall 100 of 200mm, which is suitable for installation after plastering).

[0020] Then, at the center of the top surface of one of the side frame 1.2, use an electric welding machine to vertically weld an 8.8 grade nut with an outer diameter of 25mm as a connector 2, so that the axial direction of the screw hole on the nut is consistent with the length direction of the bottom frame 1.1, thus ensuring that the axial direction of the screw hole on the nut is perpendicular to the length direction of the side frame 1.2.

[0021] Next, a 15mm outer diameter support screw 3 is screwed onto the connector 2. A rubber pad 4 is glued to the inner end of the support screw 3 with liquid adhesive, and a 40mm outer diameter nut is welded to the outer end as a fixing head 5. The rubber pad 4 can ensure soft contact with the shear wall 100, while the fixing head 5 can ensure that the buckle on one side of the cross fastener 7 is securely fastened to it while making it easy to hold and tighten.

[0022] Finally, the U-shaped clip 1 is horizontally clipped onto the shear wall 100 at a height of 1.2 meters from the ground, and the rubber pad 4 is firmly supported on the shear wall 100 by screwing on the top support screw 3. Then, one side of the cross fastener 7 is clipped onto the fixing head 5, and the other side of the cross fastener 7 is clipped onto the guardrail steel pipe 200. Two sets of the telescopic edge guardrail fixing devices described in this utility model are symmetrically installed on the shear walls 100 on the left and right sides of the building's exterior wall door and window openings. This allows the horizontal guardrail steel pipe 200 to be firmly mounted on the outside of the building's exterior wall door and window openings, thus forming a safety protection facility located at the exterior wall door and window openings.

Claims

1. A telescopic edge guardrail fixing device, characterized in that: The device includes a U-shaped clip frame that is horizontally fastened to the shear wall of the building's exterior door and window openings. The U-shaped clip frame is formed by a bottom frame and a pair of side frames that are vertically fixed to both ends of the bottom frame. A connector is fixed to one of the side frames, and the connector has a threaded hole. The axis of the threaded hole is consistent with the length direction of the bottom frame. A top support screw is threaded through the threaded hole. The inner end of the top support screw is provided with a rubber pad that presses against the shear wall, and its outer end is provided with a fixing head. A cross fastener is fastened to the fixing head, and the other end of the cross fastener is ring-fixed to the guardrail steel pipe outside the building's exterior door and window openings.

2. The telescopic edge guardrail fixing device according to claim 1, characterized in that: Both the bottom frame and the side frame are made of angle steel with a diameter of ∠25×25×2mm.

3. The telescopic edge guardrail fixing device according to claim 1, characterized in that: The rubber pad has anti-slip ribs evenly arranged on its top surface.

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