A side guard rail clamp for prefabricated buildings and a method for installing the same

Abstract

This invention relates to a side railing clamp for precast buildings and its installation method. The side railing clamp includes a fixed base, a railing, and a template limiting component. The fixed base is a hollow square tube with an inner through hole and an outer through hole. A screw passes through the outer and inner through holes to connect the hollow square tube to a screw hole on a precast beam. An inner nut and an outer nut are threaded onto the outer circumference of the screw inside the hollow square tube. The railing is installed on the top of the hollow square tube and has multiple hooks. The template limiting component is fixed to the inner side of the railing. The inner side of the template limiting component is not coplanar with the inner side of the hollow square tube, so that when the fixed base is fixed to the precast beam, a gap is formed between the precast beam and the template limiting component to accommodate the side mold. The advantage of this invention is convenient installation. The side railing clamp can be installed on the precast component before it is hoisted, and then the side railing clamp and the precast component are hoisted as a whole, reducing the risk and difficulty of installation.

Description

Technical Field

[0001] This invention relates to the field of accessories for prefabricated buildings, and in particular to a side railing clamp for prefabricated buildings and its installation method. Background Technology

[0002] During the construction of precast buildings, a post-concrete layer needs to be poured. During the pouring process, construction workers need to stand on the precast components. Therefore, temporary protection needs to be set up on the precast components to ensure that the workers do not fall.

[0003] Current concrete construction requires the erection of external scaffolding, with protective netting installed around its perimeter. However, scaffolding erection is time-consuming and labor-intensive. Furthermore, since the entire scaffolding is only dismantled after the building's exterior walls are completed, and its continued presence occupies space around the building, construction in the surrounding area can only proceed after the scaffolding is removed, thus extending the overall construction period. Therefore, how to eliminate the need for scaffolding in precast construction is a pressing issue that the industry urgently needs to address. Summary of the Invention

[0004] The purpose of this invention is to provide a side railing clamp for prefabricated buildings and its installation method. It can be quickly and easily installed on prefabricated components and hoisted synchronously with the prefabricated components. After the construction period is completed, it can be easily and quickly disassembled without any parts falling off during the disassembly process.

[0005] This invention is achieved through the following technical solution: a side railing clamp for prefabricated buildings, comprising a fixed base, a railing, and a template limiting component;

[0006] The fixed base is a hollow square tube, and the upper part of the inner side wall and the upper part of the outer side wall of the hollow square tube are respectively provided with an inner through hole and an outer through hole. The screw passes through the outer through hole and the inner through hole to connect the hollow square tube to the screw hole provided on the outer side wall of the precast beam; and an inner nut and an outer nut are threadedly connected inside the hollow square tube and on the outer circumference of the screw.

[0007] The railing is made of steel pipe and installed on the top of a hollow square tube, with multiple hooks connected to the railing.

[0008] The template limiting component is fixed to the inner side of the railing. The inner side of the template limiting component is not coplanar with the inner side of the hollow square tube, so that when the fixed base is fixed to the precast beam, a gap is formed between the precast beam and the template limiting component to accommodate the side mold.

[0009] A method for installing a side railing clamp for prefabricated buildings includes the following steps:

[0010] Step 1: Before the precast beam is hoisted, place the fixing base on the outer side of the precast beam and lock the fixing base on the outer side of the precast beam by passing the screws through the outer through hole, outer nut, inner nut and inner through hole in sequence.

[0011] Step 2: Adjust the inner and outer nuts so that the inner nut is initially positioned when the screw is fully connected to the precast beam, with the inner nut against the inner wall of the hollow square tube; and simultaneously, adjust the outer nut so that it is initially positioned when the screw is just detached from the precast beam, with the outer nut against the outer wall of the hollow square tube.

[0012] Step 3: Hoist the precast beam to the designated position;

[0013] Step 4: A horizontal steel pipe is placed at the bend, and the horizontal steel pipe is fixed by adjusting the round wing nut;

[0014] Step 5: Place the side formwork between the template limiting component and the precast beam;

[0015] Step 6: Pour concrete for the floor;

[0016] Step 7: Remove the side mold and horizontal steel pipe, and separate the fixed base by rotating the screw.

[0017] Compared with previous technologies, the beneficial effects of the present invention are as follows:

[0018] 1. Easy installation: The side guardrail clamps can be installed on the precast components before they are hoisted, and then the side guardrail clamps and the precast components are hoisted as a whole, which reduces the risk and difficulty of installation.

[0019] 2. Disassembly is convenient and no parts will fall off; specifically, the hook does not need to be removed and will not fall off, and the screw will not fall off because it is limited by the outer nut.

[0020] 3. Due to the long length of the screw, in order to avoid the problem of the fixed base shaking, after the fixed base is installed on the precast beam by the screw, the inner nut is used to limit the movement of the fixed base on the screw. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a diagram showing the assembly state of the fixed base;

[0023] Figure 3 This is a diagram showing the combined state of the railings;

[0024] Figure 4 This is a diagram showing the assembly state of the template limiting components;

[0025] Figure 5 This is a schematic diagram of the invention installed on a precast beam;

[0026] Figure 6 A schematic diagram of hoisting a precast beam with side guardrail clamps;

[0027] Figure 7 This is a schematic diagram of installing horizontal steel pipes onto a railing.

[0028] Figure 8 This is a schematic diagram showing the installation of the side formwork between the template limiting component and the precast beam;

[0029] Figure 9 This is a schematic diagram showing the installation of the present invention.

[0030] Labeling Explanation: 1 Fixed Base, 11 Inner Through Hole, 12 Outer Through Hole, 13 Screw, 14 Inner Nut, 15 Outer Nut, 16 Positioning Hole, 2 Railing, 21 Hook Bolt, 22 Round Wing Butterfly Nut, 23 Limiting Hole, 3 Template Limiting Part, 31 Angle Steel, 32 Limiting Steel Plate, 4 Precast Beam, 41 Screw Hole, 5 Horizontal Steel Pipe, 6 Side Mold. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings:

[0032] like Figure 1-4 As shown: A side railing clamp for prefabricated buildings includes a fixed base 1, a railing 2, and a template limiting component 3;

[0033] The fixed base 1 is a hollow square tube, and the upper part of the inner side wall and the upper part of the outer side wall of the hollow square tube are respectively provided with an inner through hole 11 and an outer through hole 12. The screw 13 passes through the outer through hole 12 and the inner through hole 11 to connect the hollow square tube to the screw hole 41 provided on the outer side wall of the precast beam 4; and an inner nut 14 and an outer nut 15 are threadedly connected to the outer circumference of the screw 13 inside the hollow square tube.

[0034] The railing 2 is a steel pipe installed on the top of a hollow square tube, and multiple hooks are connected to the railing 2.

[0035] The template limiting member 3 is fixed to the inner side of the railing 2. The inner side of the template limiting member 3 is not coplanar with the inner side of the hollow square tube, so that when the fixed base 1 is fixed to the precast beam 4, a gap is formed between the precast beam 4 and the template limiting member 3 to accommodate the side mold 6.

[0036] The fixed base 1 here is installed on the side of the precast beam. When setting the positions of the inner through hole 11 and the outer through hole 12, it is necessary to consider setting them on the upper part of the side wall of the fixed base 1. In this way, when the railing is subjected to an outward overturning force, the fixed base 1 side wall below the inner through hole 11 will abut against the side wall of the precast beam with the screw as the fulcrum, forming an anti-overturning effect. In this process, the screw only needs to overcome an outward pulling force, and this pulling force can ensure that the screw does not pull out, thus ensuring the anti-overturning of the railing.

[0037] The screw rod here uses a double-nut configuration with an inner nut 14 and an outer nut 15. This is primarily for two reasons: firstly, the outer nut 15 prevents the screw rod from detaching from the fixed base, thus avoiding the possibility of objects falling from a height. Secondly, it limits the movement of the fixed base after installation. Specifically, due to the relatively long screw rod, to prevent the fixed base from wobbling, the inner nut's position after the fixed base is installed on the precast beam via the screw rod prevents the fixed base from shaking on the screw rod.

[0038] Due to deviations in different connection positions during the prefabrication process, both the inner through hole 11 and the outer through hole 12 are horizontally extending strip-shaped holes. Since the screw hole 41 may deviate during product manufacturing, the strip-shaped holes facilitate subsequent adjustment and installation.

[0039] The template limiting component 3 includes an angle steel 31 and limiting steel plates 32. The angle steel 31 is fixed to the inner side of the railing 2 and the top of the hollow square tube. Several horizontally extending limiting steel plates 32 are installed on the inner side of the angle steel 31 from top to bottom. The template limiting component 3 is mainly for facilitating the subsequent clamping of the side mold.

[0040] The hook includes a hook bolt 21 and a winged nut 22. Multiple limiting holes 23 are provided on the railing 2 from top to bottom. The hook bolt 21 passes through the limiting holes 23 and is fixed by the winged nut 22. This design allows for easy adjustment of tightness and facilitates the subsequent assembly and disassembly of the transverse steel pipe 5.

[0041] The fixed base 1 has a positioning hole 16 on its top, and the railing 2 is inserted into the positioning hole 16. Subsequently, the railing 2 can be simply inserted into the positioning hole 16 and welded in place to form a single unit.

[0042] like Figure 5-9 As shown: A method for installing a side railing clamp for prefabricated buildings, comprising the following steps:

[0043] Step 1: Before the precast beam 4 is hoisted, place the fixing base 1 on the outer side of the precast beam 4, and lock the fixing base 1 on the outer side of the precast beam 4 by passing the screw 13 through the outer through hole 12, the outer nut 15, the inner nut 14, and the inner through hole 11 in sequence.

[0044] Step 2: Adjust the inner nut 14 and the outer nut 15 so that the initial position of the inner nut 14 is when the screw 13 is fully connected to the precast beam 4, and the inner nut 14 is attached to the inner wall of the hollow square tube; at the same time, adjust the initial position of the outer nut 15 so that the screw 13 is just disengaged from the precast beam 4, and the outer nut 15 is attached to the outer wall of the hollow square tube.

[0045] Step 3: Hoist the precast beam 4 to the designated position;

[0046] Step 4: A horizontal steel pipe 5 is placed at the bend, and the horizontal steel pipe 5 is fixed by adjusting the round wing nut 22;

[0047] Step 5: Place the side mold 6 between the template limiting component 3 and the precast beam 4;

[0048] Step 6: Pour concrete for the floor;

[0049] Step 7: Remove the side mold 6 and the transverse steel pipe 5, and separate the fixed base 1 by rotating the screw 13.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamp for edge guardrails in prefabricated buildings, characterized in that: Includes a fixed base (1), railings (2), and template limiting components (3); The fixed base (1) is a hollow square tube, and the upper part of the inner side wall and the upper part of the outer side wall of the hollow square tube are respectively provided with an inner through hole (11) and an outer through hole (12). The screw (13) passes through the outer through hole (12) and the inner through hole (11) to connect the hollow square tube to the screw hole (41) provided on the outer side wall of the precast beam (4); and an inner nut (14) and an outer nut (15) are threaded on the outer circumference of the screw (13) inside the hollow square tube. The railing (2) is a steel pipe and is installed on the top of a hollow square tube. Multiple hooks are connected to the railing (2). The template limiting component (3) is fixed to the inner side of the railing (2). The inner side of the template limiting component (3) is not coplanar with the inner side of the hollow square tube, so that when the fixed base (1) is fixed to the precast beam (4), a gap is formed between the precast beam (4) and the template limiting component (3) to accommodate the side mold (6).

2. A side railing clamp for prefabricated buildings according to claim 1, characterized in that: Both the inner through hole (11) and the outer through hole (12) are horizontally extending strip-shaped holes.

3. A side railing clamp for prefabricated buildings according to claim 1, characterized in that: The template limiting component (3) includes an angle steel (31) and a limiting steel plate (32). The angle steel (31) is fixed to the inner side of the railing (2) and the top of the hollow square tube. Several horizontally extending limiting steel plates (32) are installed on the inner side of the angle steel (31) from top to bottom.

4. A side railing clamp for prefabricated buildings according to claim 1, characterized in that: The hook includes a hook head bolt (21) and a round wing nut (22). Multiple limiting holes (23) are provided on the railing (2) from top to bottom. The hook head bolt (21) passes through the limiting holes (23) and is fixed by the round wing nut (22).

5. A side railing clamp for prefabricated buildings according to claim 1, characterized in that: The fixed base (1) has a positioning hole (16) on its top, and the railing (2) is inserted into the positioning hole (16).

6. The installation method of a side railing clamp for prefabricated buildings according to claim 4, characterized in that: Includes the following steps: Step 1: Before the precast beam (4) is hoisted, place the fixing base (1) on the outer side of the precast beam (4) and lock the fixing base (1) on the outer side of the precast beam (4) by passing the screw (13) through the outer through hole (12), outer nut (15), inner nut (14) and inner through hole (11) in sequence. Step 2: Adjust the inner nut (14) and the outer nut (15) so that the initial position of the inner nut (14) is when the screw (13) is fully connected to the precast beam (4), and the inner nut (14) is attached to the inner wall of the hollow square tube; at the same time, adjust the initial position of the outer nut (15) so that the screw (13) is just disengaged from the precast beam (4), and the outer nut (15) is attached to the outer wall of the hollow square tube. Step 3: Hoist the precast beam (4) to the designated position; Step 4: A horizontal steel pipe (5) is placed at the bend, and the horizontal steel pipe (5) is fixed by adjusting the round wing nut (22); Step 5: Place the side formwork (6) between the template limiting component (3) and the precast beam (4); Step 6: Pour concrete for the floor; Step 7: Remove the side mold (6) and the transverse steel pipe (5), and separate the fixed base (1) by rotating the screw (13).

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