Prefabricated stairway protection platform and construction structure

Abstract

One end of a protection platform body can be in lap joint with a transverse section of a mounting part of an upper-layer beam plate, and the other end of the protection platform body extends downwards to a lower-layer beam plate through a supporting column and is in lap joint with the transverse section of the mounting part through a supporting block. Therefore, the prefabricated stair entrance protection platform is erected at a stair entrance of two adjacent layers of beam plates. The falling risk can be reduced, the construction safety can be improved, standing points can be provided for constructors, the limitation of staircases on construction is reduced, and the construction is more flexible and efficient; the prefabricated stairway protection platform does not need to be additionally provided with connecting pieces, is easy to use, and facilitates improvement of the construction speed; in addition, the protection platform body is composed of the main platform and the auxiliary platform, the auxiliary platform can be overturned upwards and even overlapped on the main platform, and therefore the width size is reduced, and transfer use and storage are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction tools in fixed buildings, and specifically relates to a prefabricated stairway protection platform and a construction structure. Background Art

[0002] In traditional building construction, stairs are mostly cast together with beams and slabs. However, in order to increase the construction speed, prefabricated stairs are often used now, such as a prefabricated staircase splicing structure for assembled buildings disclosed in Chinese patent CN220225996U; during construction, only beams and slabs are cast, stair openings are reserved on the beams and slabs, and an L-shaped mounting portion is formed on one side of the stair opening. The vertical section of the mounting portion is connected to the beams and slabs, and the horizontal section faces the inside of the stair opening. The mounting portions of two adjacent layers of beams and slabs are respectively located on opposite sides of the stair opening, thereby cooperating with the two ends of the prefabricated stairs to provide connection and support.

[0003] However, before the prefabricated stairs are installed, a cavity is formed on the beam slab at the stair entrance, and construction workers are at risk of falling when performing construction work on the beam slab, which poses a great safety hazard. At present, fences are generally set around the stair entrances to reduce the risk of falling, such as a prefabricated stair entrance safety protection device disclosed in Chinese patent CN220539281U, but the lower end of the fence needs to be fixedly connected to the beam slab, which not only requires a connecting piece to be set on the beam slab, but also the installation and disassembly are more troublesome, which has a certain impact on the construction speed. In addition, when it is necessary to set a mold near the stair entrance to cast other building components, the fence is not only easy to interfere with the fixing and supporting components used to set the mold, but also the operating space of the construction workers is greatly limited, which is not conducive to the relevant construction work.

[0004] Therefore, it is necessary to design a protective platform for prefabricated staircases, which not only plays a protective role, but also provides an operating platform for construction operations near the staircases to improve construction safety and construction speed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a prefabricated staircase protection platform and construction structure to solve the complex technical problems of using protective devices for prefabricated staircases and to achieve the effect of improving construction safety and construction speed.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A prefabricated staircase protection platform comprises a rectangular main platform, one surface of which is vertically connected to two support columns; in the length direction of the main platform, the two support columns are close to the same end of the main platform and are arranged at intervals along the width direction, and the side of the support column away from the main platform is vertically connected to a support block; auxiliary platforms are extended on both sides of the width direction of the main platform, the auxiliary platforms are hinged to the main platform and can only be flipped toward the side of the main platform away from the support columns, and the main platform and the auxiliary platforms on both sides form the protection platform body.

[0008] Furthermore, a hanging piece is provided on one end of the main platform facing away from the supporting column and close to the supporting column. A hanging hole is penetrated through the hanging piece. There are two hanging holes which are spaced apart along the width direction of the main platform.

[0009] Furthermore, a plurality of rectangularly distributed plug-in columns are vertically connected to a surface of the main platform that is away from the support column.

[0010] Furthermore, the two opposite side surfaces of the sub-platform and the main platform are abutted against each other, the two sides of the sub-platform and the main platform facing away from the support column are flush, the sub-platform and the main platform are hinged by a hinge, and the two sides of the hinge are respectively connected to the surfaces of the sub-platform and the main platform facing away from the support column, so that the sub-platform can only be flipped toward the side of the main platform facing away from the support column.

[0011] Furthermore, in the length direction of the support column, a transverse reinforcement rod is provided on the side of the support block close to the main platform, the transverse reinforcement rod is perpendicular to the two support columns respectively, and the transverse reinforcement rod is connected to the two support columns and the two support blocks respectively.

[0012] Furthermore, an oblique reinforcement rod is connected between the support column and the main platform.

[0013] Furthermore, the main platform and the auxiliary platform are plate-like structures or frame structures.

[0014] Furthermore, the main platform and the auxiliary platform are frame structures. The main platform is composed of two parallel and opposite longitudinal rods and a plurality of transverse rods arranged at intervals along the longitudinal rods. The two support columns are vertically connected to the same end of the two longitudinal rods respectively. The auxiliary platform is composed of four connecting rods distributed in a rectangular shape and connected in pairs. The main platform and the auxiliary platform are respectively covered with steel meshes.

[0015] The utility model also includes a prefabricated stair opening construction structure, including a prefabricated stair opening protection platform as described above, wherein the prefabricated stair opening construction structure includes two adjacent upper and lower beam slabs, a stair opening is preset on the beam slab and one side of the stair opening has an L-shaped mounting portion, the vertical section of the mounting portion is connected to the beam slab, and the transverse section faces the inner side of the stair opening, and the mounting portions of the upper and lower beam slabs are respectively located on two opposite sides of the stair opening; one end of the protection platform body away from the support column is overlapped on the transverse section of the upper beam slab mounting portion, the support block is overlapped on the transverse section of the lower beam slab mounting portion, and the four sides of the protection platform body are respectively connected to the four sides of the stair opening The edge of the stair opening is connected to cover the stair opening.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The prefabricated stairway protection platform of the utility model is set up at the stairway of two adjacent layers of beams and slabs when in use. The rectangular protection platform body matches the size of the stairway, thereby covering the stairway, which can not only reduce the risk of falling and improve construction safety, but also provide a standing point for construction personnel when performing related construction operations, reduce the restrictions of the stairway on construction, and make construction more flexible and efficient; the prefabricated stairway protection platform does not require additional connecting parts, is relatively simple to use, and is conducive to improving construction speed.

[0018] 2. In the prefabricated stairway protection platform described in the utility model, the protection platform body is composed of a main platform and a secondary platform. The secondary platform can be turned upward or even overlapped on the main platform, thereby reducing the width for easy transfer, use and storage.

[0019] 3. In the prefabricated staircase protection platform described in the utility model, the lifting hole is located at the end of the main platform close to the support column. During lifting, the prefabricated staircase protection platform will deflect under the action of its own gravity, making the vertical passing dimension required for the prefabricated staircase protection platform smaller to facilitate lifting and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the prefabricated stairway protection platform described in the embodiment;

[0021] Figure 2 It is a three-dimensional schematic diagram of the prefabricated stairway protection platform (without the steel mesh) described in the embodiment;

[0022] Figure 3 It is a schematic diagram of the construction structure of the prefabricated staircase entrance described in the embodiment;

[0023] Among them, there are main platform 1, longitudinal rod 11, transverse rod 12, support column 2, support block 21, secondary platform 3, beam slab 4, stair opening 41, mounting part 42, steel mesh 5, hinge 6, lifting part 7, lifting hole 71, plug-in column 8, transverse reinforcement rod 91, and diagonal reinforcement rod 92. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0025] Example:

[0026] See also Figure 1 and Figure 2 A prefabricated stairway protection platform comprises a rectangular main platform 1, one side of which is vertically connected to two support columns 2; in the length direction of the main platform 1, the two support columns 2 are close to the same end of the main platform 1 and are arranged at intervals along the width direction, and a support block 21 is vertically connected to the side of the support column 2 away from the main platform 1; both sides of the main platform 1 in the width direction are extended with auxiliary platforms 3, which are hinged to the main platform 1 and can only be turned over toward the side of the main platform 1 away from the support column 2, and the main platform 1 and the auxiliary platforms 3 on both sides form the protection platform body; see Figure 3 During construction, a stair opening 41 is preset on the beam slab 4 and one side of the stair opening 41 has an L-shaped mounting portion 42, the vertical section of the mounting portion 42 is connected to the beam slab 4, and the transverse section faces the inner side of the stair opening 41, and the mounting portions 42 of the two adjacent beam slabs 4 are respectively located on the opposite sides of the stair opening 41; the end of the protective platform body away from the support column 2 is overlapped on the transverse section of the mounting portion 42 of the upper beam slab 4 and abuts against the vertical section, the support block 21 is overlapped on the transverse section of the mounting portion 42 of the lower beam slab 4 and abuts against the vertical section, and the part of the support column 2 lower than the support block 21 abuts against the end of the transverse section.

[0027] The prefabricated stairway protection platform of the utility model, when in use, one end of the rectangular protection platform body is overlapped on the transverse section of the mounting portion 42 of the upper beam plate 4, and the other end extends downward to the lower beam plate 4 through the support column 2 and is overlapped on the transverse section of the mounting portion 42 through the support block 21. The prefabricated stairway protection platform can be erected at the stairway 41 of two adjacent beam plates 4, which can not only reduce the risk of falling and improve construction safety, but also provide a standing point for construction personnel when performing related construction operations, reduce the restrictions of the stairway 41 on construction, and make the construction more flexible and efficient; the prefabricated stairway protection platform does not need to be additionally provided with connecting parts, is relatively simple to use, and is conducive to improving the construction speed;

[0028] In addition, the protection platform body is composed of a main platform 1 and a sub-platform 3. The sub-platform 3 can be flipped upward or even overlapped on the main platform 1. For a closed rectangular staircase, the protection platform body can be set to match the size of the staircase 41. Flipping the sub-platform 3 upward can reduce the width of the protection platform body to facilitate transfer and storage. When in use, flipping the sub-platform 3 downward to reset it can make the protection platform body completely cover the staircase 41, thereby improving construction safety. For staircases that are open on both sides in the width direction, such as a suspended escalator in a shopping mall, after flipping the sub-platform 3 downward to unfold it, the main platform 1 can be extended in the width direction, providing a larger platform area for construction operations.

[0029] During implementation, the main platform 1 and the auxiliary platform 3 can adopt a plate structure or a frame structure, see Figure 2 In this embodiment, in order to reduce the weight of the protective platform body and facilitate transfer, use and storage, the main platform 1 and the auxiliary platform 3 both adopt a frame structure. Specifically, the main platform 1 is composed of two parallel and opposite longitudinal rods 11 and a plurality of cross rods 12 arranged at intervals along the longitudinal rods 11. The cross rod 12 is located above the longitudinal rod 11 and is perpendicular to the longitudinal rod 11. The two ends of the cross rod 12 are respectively fixedly connected to the two longitudinal rods 11. The support column 2 is located below the longitudinal rod 11. The two support columns 2 are respectively vertically connected to the same end of the two longitudinal rods 11. The auxiliary platform 3 is composed of four connecting rods distributed in a rectangular shape and connected in pairs; the cross rod 12 and the connecting rod are both made of rectangular steel pipes, and the longitudinal rod 11, the support column 2 and the support block 21 are all made of I-beams.

[0030] See also Figure 1 In order to facilitate the construction workers to stand on the protective platform body and to prevent construction tools from falling from the gap on the protective platform body, the main platform 1 and the auxiliary platform 3 are also covered with a steel mesh 5; in this embodiment, the auxiliary platform 3 is hinged to the main platform 1 using a hinge 6. Specifically, each cross bar 12 is of equal length and has a flush end surface. The upper surface of the connecting rod is flush with the upper surface of the cross bar 12. The connecting rod close to the main platform 1 abuts against the opposite end surfaces of each cross bar 12. The hinge 6 is arranged along the length direction of the cross bar 12. One side of the hinge 6 is connected to the upper surface of the cross bar 12, and the other end is connected to the upper surface of the connecting rod of the auxiliary platform 3 close to the main platform 1, so that the auxiliary platform 3 can only be flipped toward the side of the main platform 1 away from the support column 2.

[0031] See also Figure 2 A hanging piece 7 is provided on the side of the main platform 1 facing away from the supporting column 2 and close to the end where the supporting column 2 is located. A hanging hole 71 is penetrated through the hanging piece 7. There are two hanging holes 71 and they are spaced apart along the width direction of the main platform 1. In this embodiment, the hanging piece 7 is rod-shaped and is connected to the two longitudinal bars 11 like the cross bar 12.

[0032] In this way, when in use, the prefabricated staircase protection platform can be connected to the hook of the lifting equipment through the lifting hole 71 to facilitate lifting and transfer. There are two lifting holes 71 to avoid rotation during lifting and make the lifting more stable. In addition, the lifting hole 71 is located at the end of the main platform 1 close to the support column 2. Figure 3 After being lifted in the shown state, the prefabricated staircase protection platform will rotate clockwise by a certain angle with the lifting hole 71 as the center under the action of its own gravity, and the end of the protection platform body away from the support column 2 will tilt downward, and the support column 2 will deflect upward, so that the size of the prefabricated staircase protection platform in the length direction of the protection platform body in the original state is reduced, and the auxiliary platform 3 is flipped upward to reduce the size of the prefabricated staircase protection platform in the width direction of the protection platform body in the original state, so that the vertical passing size required for the prefabricated staircase protection platform is smaller, so that when the prefabricated stairs are installed on the current floor, it can be directly lifted to the upper floor along the reserved staircase 41; after being lifted to the upper floor and the end of the protection platform body away from the support column 2 is overlapped on the horizontal section of the corresponding installation part 42, the protection platform body can be put down, rotated counterclockwise to restore to a horizontal state, and the support block 21 is overlapped on the horizontal section of the installation part 42, so as to quickly complete the transfer and re-installation of the prefabricated staircase protection platform, making the prefabricated staircase protection platform more convenient to use.

[0033] See also Figure 2 A plurality of rectangularly distributed plug-in columns 8 are vertically connected to the side of the main platform 1 facing away from the support columns 2. In this embodiment, the plug-in columns 8 are arranged on the cross bar 12 and close to its end. In this way, it is convenient to set up a scaffold based on the plug-in columns 8 to carry out related construction operations. When setting up the scaffold, the vertical support rods of the scaffold are plugged into the plug-in columns 8 to avoid displacement of the scaffold.

[0034] See also Figure 2 In the length direction of the support column 2, a transverse reinforcement rod 91 is provided on the side of the support block 21 close to the main platform 1. The transverse reinforcement rod 91 is perpendicular to the two support columns 2 respectively, and the transverse reinforcement rod 91 is connected to the two support columns 2 and the two support blocks 21 respectively; in this way, the transverse reinforcement rod 91 not only connects the ends of the two support columns 2 away from the main platform 1 together, thereby increasing the overall structural strength, but the transverse reinforcement rod 91 is also connected to the support block 21, thereby strengthening the connection strength between the support block 21 and the support column 2.

[0035] See also Figure 2 An oblique reinforcing rod 92 is connected between the support column 2 and the main platform 1; in this way, the oblique reinforcing rod 92 strengthens the connection between the support column 2 and the main platform 1, which is beneficial to increase the overall structural strength of the prefabricated staircase protection platform.

[0036] The utility model also includes a prefabricated stair opening 41 construction structure. The prefabricated stair opening 41 construction structure uses a prefabricated stair opening protection platform as described above. The structure and effect of the prefabricated stair opening protection platform have been described in detail above and will not be repeated here.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A prefabricated stairway protection platform, characterized in that: It includes a rectangular main platform, with two supporting columns vertically connected to one side of the main platform; in the length direction of the main platform, the two supporting columns are close to the same end of the main platform and are arranged at intervals along the width direction, and the side of the supporting column away from the main platform is vertically connected to a supporting block; auxiliary platforms are extended on both sides of the width direction of the main platform, the auxiliary platforms are hinged to the main platform and can only be flipped toward the side of the main platform away from the supporting columns, and the main platform and the auxiliary platforms on both sides form the protective platform body.

2. According to claim 1, the prefabricated stairway protection platform is characterized by: A hanging piece is provided on one end of the main platform facing away from the supporting column and close to the supporting column. A hanging hole is penetrated through the hanging piece. There are two hanging holes which are spaced apart along the width direction of the main platform.

3. According to claim 1, the prefabricated stairway protection platform is characterized by: A plurality of rectangularly distributed plug-in columns are vertically connected to a surface of the main platform away from the supporting columns.

4. The prefabricated stairway protection platform according to claim 1, characterized in that: The two opposite side surfaces of the auxiliary platform and the main platform are abutted, and the two sides of the auxiliary platform and the main platform facing away from the support column are flush. The auxiliary platform and the main platform are hinged by a hinge, and the two sides of the hinge are respectively connected to the surfaces of the auxiliary platform and the main platform facing away from the support column, so that the auxiliary platform can only be flipped toward the side of the main platform facing away from the support column.

5. The prefabricated stairway protection platform according to claim 1, characterized in that: In the length direction of the support column, a transverse reinforcement rod is provided on the side of the support block close to the main platform. The transverse reinforcement rod is perpendicular to the two support columns and connected to the two support columns and the two support blocks respectively.

6. The prefabricated stairway protection platform according to claim 1, characterized in that: An oblique reinforcement rod is connected between the support column and the main platform.

7. The prefabricated stairway protection platform according to claim 1, characterized in that: The main platform and the auxiliary platform are plate-like structures or frame structures.

8. The prefabricated stairway protection platform according to claim 1, characterized in that: The main platform and the auxiliary platform are frame structures. The main platform is composed of two parallel and opposite longitudinal rods and multiple cross rods arranged at intervals along the longitudinal rods. The two supporting columns are vertically connected to the same end of the two longitudinal rods respectively. The auxiliary platform is composed of four connecting rods distributed in a rectangular shape, connected in pairs. The main platform and the auxiliary platform are covered with steel meshes respectively.

9. A prefabricated staircase construction structure, characterized in that: It comprises a prefabricated stairway protection platform as described in any one of claims 1 to 8, wherein the prefabricated stairway construction structure comprises two adjacent upper and lower beam slabs, a stairway is preset on the beam slab and one side of the stairway has an L-shaped mounting portion, the vertical section of the mounting portion is connected to the beam slab, and the transverse section faces the inner side of the stairway, and the mounting portions of the upper and lower beam slabs are respectively located on opposite sides of the stairway; one end of the protection platform body away from the support column is overlapped on the transverse section of the upper beam slab mounting portion, and the support block is overlapped on the transverse section of the lower beam slab mounting portion.

Images