Temporary safety passage for floor construction of fabricated building main structure

Abstract

The utility model discloses a kind of temporary safety passageway of assembly type building main structure floor construction, related to building construction equipment technical field, a kind of temporary safety passageway of assembly type building main structure floor construction, including frame body, the frame body is equipped with step, the frame body is equipped with the leveling assembly of adjusting frame body height. Frame body is installed between floor, and the intercommunication work of different floors is realized by step, so as to realize floor construction temporary safety passageway, the height of frame body is adjusted by adjusting assembly, so that frame body adjustment is even, ensure that every step on frame body is in horizontal state, and then ensure that entire safety passageway can normally work, and practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a temporary safety passage for the construction of the main structure floors of a prefabricated building. Background Technology

[0002] Temporary safety passages for the construction of prefabricated building main structure floors are important vertical passage components to ensure that construction workers can travel from the existing floor to the construction floor. Due to their special structure and complex and diverse installation environment, they are difficult to control in terms of quality, have high construction safety risks, and vary in reliability when put into use.

[0003] Currently, temporary safety passages for the construction of prefabricated building main structure floors typically take the following three forms, depending on their erection location and structural composition: a. Use the protective scaffolding system to erect planks as vertical passageways; b. Use a combination structure of scaffolding and wooden formwork in the stairwell as a vertical passageway; c. Scaffolding pipes and planks are installed to create a vertical passageway by utilizing the atrium space between the connecting corridor and the main building.

[0004] Temporary safety passages during the construction of prefabricated building main structures serve as crucial temporary components for workers to access the work floor from the existing floor. Their load-bearing capacity, stability, overturning resistance, and visual impact all directly affect the safety of construction workers. This leads to limitations in these aspects of traditional construction techniques, as analyzed below: a. Using the protective scaffolding system to erect planks or using the atrium space between the connecting corridor and the main structure to erect scaffolding pipes and lay planks as vertical passages has limitations: the scaffolding system is a non-load-bearing component with limited load-bearing capacity per square meter, making it unsuitable for carrying a large number of small tools for concentrated passage. Furthermore, it is located at a high edge, resulting in a large visual impact. Local instability of the scaffolding system will lead to the overall instability of the vertical passage, posing a significant safety risk.

[0005] b. Using a combination of scaffolding and wooden formwork in the stairwell as a vertical passage has the following limitations: the process is complicated, the erection and dismantling are labor-intensive, the materials are consumed in large quantities, the materials are not used frequently, and the economy is not reasonable.

[0006] For example, CN222782457U, published on April 22, 2025, discloses a temporary safety passage for prefabricated staircases, including a support assembly and a step assembly. The support assembly forms a receiving cavity, and the step assembly is disposed within the receiving cavity. The first end of the support assembly is used to place the resting platform of the (n-2)th floor staircase, the second end of the support assembly is used to place the floor platform of the (n-1)th floor staircase, and the third end of the support assembly is used to connect to a hoisting device; where n is a natural number greater than 2. When in use, the temporary safety passage disclosed above cannot be stably placed due to the different surface unevenness of different floors, thus making the safety passage less practical. Summary of the Invention

[0007] The purpose of this invention is to provide a more practical and convenient temporary safety passage for the construction of prefabricated building main structure floors. This invention uses a leveling component to adjust the height of the support frame, thereby ensuring the entire temporary safety passage is stably placed on different floors, thus enhancing its practicality.

[0008] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is: a temporary safety passage for the construction of the main structure floor of a prefabricated building, including a frame, steps on the frame, and a leveling component for adjusting the height of the frame.

[0009] The frame includes legs, transverse tie beams and longitudinal tie beams. The legs are arranged in a rectangular shape, and adjacent legs are connected by transverse tie beams or longitudinal tie beams.

[0010] The leveling assembly includes a nut mounted on the outrigger, and a supporting screw is provided on the nut, with one end of the supporting screw extending into the outrigger.

[0011] The length of the longitudinal tie beam is greater than the length of the transverse tie beam. There are two sets of support legs. The top height of one set of support legs is greater than the top height of the other set of support legs. The longitudinal tie beam is set at an angle.

[0012] The outrigger is equipped with a support beam, and the step is connected to the support beam.

[0013] A corbel is also provided between the support leg and the support beam.

[0014] The supporting lead screw is equipped with anti-slip pads.

[0015] The support beam has pre-welded uprights at both ends, and protective uprights are provided on the two pre-welded uprights, with protective crossbars on the protective uprights.

[0016] The outriggers are also equipped with lifting rings.

[0017] The outrigger is equipped with a lateral steel pipe, and a limit connector is snapped onto the lateral steel pipe.

[0018] The beneficial effects of this utility model are: The scaffolding is installed between floors, and steps connect different floors to create temporary safety passages for construction work. The height of the scaffolding can be adjusted by adjusting the components to make it level and ensure that each step on the scaffolding is in a horizontal state, thus ensuring that the entire safety passage can work normally and making it more practical. Rotate the supporting screw to adjust the length of the supporting screw extending to the outrigger, thereby adjusting the height of the entire outrigger and leveling the frame. This makes the frame more adaptable to connecting different floors, thus increasing its practicality. This device overcomes the shortcomings of traditional temporary safety passages, such as low load-bearing capacity, poor stability, strong visual impact on pedestrians, high psychological pressure due to potential safety hazards, and limited material turnover. Using this device can reduce construction risks, lower costs, reduce construction difficulty, and significantly improve construction efficiency and pedestrian safety. Attached Figure Description

[0019] Figure 1 This is a schematic elevation view of the temporary safety passage during the construction of the main structure floors of the prefabricated building according to this utility model.

[0020] Figure 2 for Figure 1 Top view.

[0021] Figure 3 This is a schematic diagram of the temporary safety passage structure for the construction of the main building floor of the prefabricated building according to this utility model.

[0022] Figure 4 for Figure 3 Side view.

[0023] Figure 5 for Figure 3 Top view.

[0024] Figure 6 This is a partial schematic diagram of the connection between the cow leg and the support leg.

[0025] Figure 7 This is a partial schematic diagram of the connection between the corbel and the supporting beam.

[0026] Figure 8 This is a partial schematic diagram of the connection between the pre-welded steel pipe and the support beam.

[0027] Figure 9 This is a partial schematic diagram showing the connection between the pre-welded steel pipe, support beam, protective vertical bar, and protective horizontal bar.

[0028] Figure 10This is a partial schematic diagram of the connection between the support beam and the steps.

[0029] Figure 11 This is a partial schematic diagram of the connection between the outrigger and the nut.

[0030] Figure 12 This is a partial schematic diagram of the connection between the lifting ring and the outrigger.

[0031] Figure 13 This is a partial schematic diagram of the connection between the support beam and the support leg.

[0032] Figure 14 This is a partial schematic diagram of the connection between the transverse tie beam and the support leg.

[0033] Figure 15 This is a schematic diagram showing the connection between two frames, lateral steel pipes, and limit connectors.

[0034] In the attached diagram: 1-Frame, 101-Outer leg, 102-Transverse tie beam, 103-Longitudinal tie beam, 2-Step, 3-Nut, 4-Supporting screw, 5-Supporting beam, 6-Corner, 7-Anti-slip pad, 8-Pre-welded upright, 9-Protective upright, 10-Protective crossbar, 11-Lifting ring, 12-Lateral steel pipe, 13-Limit connector. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0037] like Figure 1 As shown, the temporary safety passage for the construction of the main structure floors of the prefabricated building includes a frame 1, steps 2 on the frame 1, and a leveling component for adjusting the height of the frame 1. Specifically, the steps 2 are composed of patterned plates with patterns on the surface, and there are nine steps 2. The nine steps 2 are set diagonally to ensure that different floors can be connected through the steps 2 on the frame 1. The frame 1 is made of square steel.

[0038] In use, the frame 1 is installed between floors, and the steps 2 connect different floors to achieve temporary safety passages for floor construction. The height of the frame 1 can be adjusted by adjusting the components to make the frame 1 level and ensure that each step 2 on the frame 1 is in a horizontal state, thereby ensuring that the entire safety passage can work normally and has higher practicality.

[0039] Reference Figures 1-4The frame 1 includes support legs 101, transverse tie beams 102, and longitudinal tie beams 103. The support legs 101 are rectangularly distributed, and adjacent support legs 101 are connected by transverse tie beams 102 or longitudinal tie beams 103. The frame 1, composed of support legs 101, transverse tie beams 102, and longitudinal tie beams 103, provides stable support for the steps 2. Specifically, the support legs 101, transverse tie beams 102, and longitudinal tie beams 103 are all square steel, and the support legs 101, transverse tie beams 102, and longitudinal tie beams 103 are connected in a rectangular pattern. The support legs 101 are connected by welding. There are four support legs 101, four transverse tie beams 102, and two longitudinal tie beams 103. There are two transverse tie beams 102 on the left and right sides of the frame 1, and one longitudinal tie beam 103 on the front and rear sides of the frame 1. The four support legs 101 are arranged in a rectangular shape. The two support legs 101 on the long side of the rectangular arrangement are connected by the longitudinal tie beams 103, and the two support legs 101 on the short side of the rectangular arrangement are connected by the transverse tie beams 102.

[0040] Reference Figure 3 The leveling component includes a nut 3 mounted on the support leg 101. A supporting screw 4 is mounted on the nut 3. One end of the supporting screw 4 extends into the support leg 101. By rotating the supporting screw 4, the length of the supporting screw 4 extending into the support leg 101 is adjusted, thereby adjusting the height of the entire support leg 101 and leveling the frame 1. Specifically, a pad is fully welded to the bottom of the support leg 101, and the nut 3 is welded to the pad.

[0041] Specifically, the length of the longitudinal tie beam 103 is greater than the length of the transverse tie beam 102, thus adapting to the rectangular distribution of the support legs 101. There are two sets of support legs 101, with the top height of one set of support legs 101 being greater than the top height of the other set of support legs 101, thereby ensuring that the left and right sides of the entire frame 1 are connected to different floors respectively. The longitudinal tie beam 103 is set diagonally, thereby ensuring stable support for the support legs 101.

[0042] The outrigger 101 is provided with a support beam 5, and the step 2 is connected to the support beam 5. The step 2 is installed on the frame 1 through the support beam 5. Specifically, the support beam 5 is a channel steel, and there are two support beams 5. The two support beams 5 are respectively set on the upper side of the two longitudinal tie beams 103, and the two support beams 5 are set at an angle. Specifically, the support beam 5 and the longitudinal tie beam 103 are set parallel to each other, so that the outrigger 101 is supported by the support beam 5 and the longitudinal tie beam 103. In this embodiment, the step 2 and the support beam 5 are connected by full welding.

[0043] Reference Figures 3-7A bracket 6 is also provided between the support leg 101 and the support beam 5. The bracket 6 increases the connection strength between the support beam 5 and the support leg 101, thereby increasing the strength of the entire frame 1 and ensuring the stable installation of the steps 2 on the frame 1, and ensuring the stable operation of the entire safety passage. Specifically, there are four brackets 6, and the two ends of the bracket 6 are connected to the support leg 101 and the support beam 5 by full welding.

[0044] The supporting screw 4 is equipped with anti-slip pads 7. The protective pads 7 are set to make the frame 1 fit tightly against the concrete floor, preventing the occurrence of slippage. Specifically, the anti-slip pads 7 are composed of plywood, square wood and plywood.

[0045] Reference Figures 3-9 The support beam 5 has pre-welded uprights 8 at both ends, and protective uprights 9 on the two pre-welded uprights 8. Protective crossbars 10 are provided on the protective uprights 9. The protective crossbars 10, protective uprights 9 and pre-welded uprights 8 form a protective system to protect the workers walking on the steps 2 on the support beam 5. Specifically, the pre-welded uprights 8 are fully welded to the support beam 5, and the protective uprights 9 are fitted on the top of the pre-welded uprights 8. The protective crossbars 10 are connected to the protective uprights 9 by a snap fastener, so as to realize the convenient assembly and disassembly of the entire protective system. The protective crossbars 10 are set parallel to the steps 2 to ensure that the protective crossbars 10 can stably perform the protective work. In this embodiment, there are four pre-welded uprights 8, four protective uprights 9 and four protective crossbars 10.

[0046] Reference Figure 12 The outrigger 101 is also equipped with a lifting ring 11. The lifting ring 11 facilitates the movement of the entire frame 1 to different positions for work. The lifting ring 11 is made of round steel. According to the cross-sectional size of the outrigger, the round steel is bent into an inverted "U" shape and welded to the top of the four outriggers. It is equipped with a special steel wire rope and "U" shaped clamp to form a complete and reliable lifting and moving system.

[0047] Reference Figure 15 The outrigger 101 is equipped with a lateral steel pipe 12, and a limit connector 13 is snapped onto the lateral steel pipe 12. The lateral steel pipe 12 and the limit connector 13 are used to connect the two frames 1 of the zigzag temporary safety passage, making them a whole, more stable and not overturned. This structure is easy to install and disassemble.

[0048] Reference Figure 1 and 2Based on the height and width of the zigzag staircase in the main structure and the clear space of the stairwell, and adhering to the principles of meeting construction functions, being lightweight, and not affecting the construction of the main structure, the dimensions, structural form, and material composition of the staircase are determined. The temporary safety passage is also designed with a zigzag structure, and is made of square steel, channel steel, checkered plates, etc., processed and welded together. The distance between the edges of the frame and the edges of the surrounding main structure (or formwork) should be sufficient to allow for the installation of tie rods on the beam and slab formwork (100mm).

[0049] After the frame 1 is fabricated, a tower crane is used with a dedicated hoisting system to lift it into the stairwell of the required working floor. Workers manually place anti-slip pads on the rest platform of the stairwell below the working floor, ensuring that the formwork construction is not affected and allowing sufficient working space around the perimeter. The rigging operator directs the tower crane to slowly lower it, and workers manually guide the outriggers 101 of frame 1 onto the anti-slip pads 7. Then, using a leveling assembly and a spirit level, frame 1 is leveled. Next, the "U"-shaped reinforcing bars of the limit connector 13 are inserted into the pre-welded lateral steel pipes 12 on the sides of the outriggers. At this point, the wire ropes of the hoisting system are removed and properly stored. Manual installation of the protective facilities begins, with the protective uprights 9 inserted into the pre-welded uprights 8 at the top of frame 1. After the uprights are installed, the protective crossbars 10 are pinned to the protective uprights 9. The entire temporary safety passage device is now complete.

[0050] A temporary safety passage device for the construction of prefabricated building main structure floors has been developed, overcoming the shortcomings of traditional temporary safety passages, such as low load-bearing capacity, poor stability, strong visual impact on pedestrians, high psychological pressure due to potential safety hazards, and limited material turnover. Using this device can reduce construction risks, decrease costs, reduce construction difficulty, and significantly improve construction efficiency and personnel passage safety.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temporary safety passage for the construction of the main structure floors of a prefabricated building, characterized in that, The system includes a frame (1) that is erected on different floors. The frame (1) is provided with steps (2) and a leveling component for adjusting the height of the frame (1). The frame (1) includes legs (101), transverse tie beams (102) and longitudinal tie beams (103). The legs (101) are rectangularly distributed and adjacent legs (101) are connected by transverse tie beams (102) or longitudinal tie beams (103). The leveling component includes nuts (3) provided on the legs (101) and a supporting screw (4) provided on the nuts (3). One end of the supporting screw (4) extends into the legs (101).

2. A temporary safety passage for the construction of the main structure floors of a prefabricated building according to claim 1, characterized in that, The length of the longitudinal tie beam (103) is greater than the length of the transverse tie beam (102). There are two sets of legs (101), and the top height of one set of legs (101) is greater than the top height of the other set of legs (101). The longitudinal tie beam (103) is obliquely arranged.

3. A temporary safety passage for the construction of the main structure floors of a prefabricated building according to claim 1, characterized in that, The support leg (101) is provided with a support beam (5), and the step (2) is connected to the support beam (5).

4. A temporary safety passage for the construction of the main structure floors of a prefabricated building according to claim 3, characterized in that, A corbel (6) is also provided between the support leg (101) and the support beam (5).

5. A temporary safety passage for the construction of the main structure floors of a prefabricated building according to any one of claims 1-4, characterized in that, The supporting screw (4) is provided with anti-slip pads (7).

6. A temporary safety passage for the construction of prefabricated building main structure floors according to claim 3, characterized in that, The support beam (5) has pre-welded uprights (8) at both ends, and protective uprights (9) are provided on the two pre-welded uprights (8), and protective crossbars (10) are provided on the protective uprights (9).

7. A temporary safety passage for the construction of prefabricated building main structure floors according to claim 6, characterized in that, The outrigger (101) is also equipped with a hanging ring (11).

8. A temporary safety passage for the construction of the main structure floors of a prefabricated building according to claim 6, characterized in that, The outrigger (101) is provided with a lateral steel pipe (12), and a limit connector (13) is snapped onto the lateral steel pipe (12).

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