Protective structure of floor construction hole

Abstract

The utility model discloses a protection structure of a floor construction hole, which comprises a cover plate, at least three bolts are uniformly distributed at the edge part of the cover plate along the circumferential direction, the bolts are vertical to the cover plate, the bolts are movably arranged on the cover plate in a penetrating manner, the lower ends of the bolts are fixedly connected with clamping plates vertical to the bolts, and the clamping plates are fixedly connected with the cover plate. A clamping direction mark is arranged on the upper end face of the bolt, a lock nut is arranged on the bolt, and the lock nut is located on the cover plate. According to the utility model, the cover plate is locked on the construction hole by adopting the bolt with the clamping plate, the cover plate is good in stability, not easy to damage and high in safety, can be conveniently opened or closed as required, is convenient to disassemble and assemble, is simple in structure, is easy to maintain, is convenient to eliminate potential safety hazards, and is relatively convenient to use; meanwhile, cost is low, shaped batch production can be achieved, turnover use can be achieved, and the structure is attractive.

Description

Technical Field

[0001] The utility model relates to a construction hole protection structure, in particular to a floor slab construction hole protection structure. Background Art

[0002] During the construction process of a building project, there are a large number of construction openings in the building due to construction or design reasons. The protection facilities for the openings require:

[0003] 1) Openings on floors, roofs, platforms, etc. with a short side dimension less than 25 cm but greater than 2.5 cm must be covered tightly with a solid cover plate, and the cover plate must be fixed to prevent movement and displacement.

[0004] 2) Openings with a side length of 25 to 50 cm on the floor surface, openings made when installing prefabricated components, and openings temporarily formed due to missing parts can be covered with bamboo, wood, etc. The cover should be placed evenly on all sides and measures should be taken to fix its position to prevent it from moving or shifting.

[0005] 3) For openings with a side length of 50 to 150 cm, a layer of mesh grille made of steel pipes connected by fasteners must be installed, and bamboo fences or scaffolding boards must be covered on it. Steel bars running through the concrete slab can also be used to form a protective mesh grille. The spacing between the steel bars shall not be greater than 20 cm.

[0006] 4) For openings with a side length of more than 150 cm, protective railings must be installed around the openings, and a safety net must be installed under the openings for protection.

[0007] 5) The openings of garbage shafts and flues should be eliminated one by one as the floors are built or installed, or they should be protected in the same way as reserved openings.

[0008] 6) The covers of openings, deep trenches, pipe pits and grooves located next to vehicle driving lanes should be able to withstand a load of not less than twice the local rated effective load-bearing capacity of the truck rear wheels.

[0009] 7) For vertical openings on walls and other places, all openings that reach the ground should be equipped with switch-type, fixed or tool-type protective doors. The spacing between the door grids should not be greater than 15 cm. Protective railings can also be used with footboards underneath.

[0010] 8) For vertical openings such as window sills whose lower edge is less than 80cm from the floor or bottom surface, if the side drop is greater than 2m, a 1.2m high temporary guardrail should be installed.

[0011] 9) Other horizontal and vertical holes and openings that may cause falling hazards to nearby people and objects should be covered or protected and securely fixed to prevent movement.

[0012] At present, wooden covers and steel pipe protection are mostly used for the protection of construction openings in floor slabs. This protection structure is prone to having the opening exposed due to unauthorized movement, is not easy to maintain, and is likely to pose a relatively high safety risk. Moreover, during use, the covers and steel pipes need to be placed separately, making construction and use rather inconvenient. Summary of the Utility Model

[0013] The utility model provides a protection structure for construction openings in floor slabs with relatively high safety, and relatively simple construction and use, in order to solve the technical problems existing in the known technology.

[0014] The technical solution adopted by the utility model to solve the technical problems existing in the known technology is: a protection structure for construction openings in floor slabs, including a cover plate. Along the circumferential direction, at least three bolts are evenly distributed on the edge of the cover plate. The bolts are perpendicular to the cover plate and are movably inserted through the cover plate. A clamping plate perpendicular to it is fixedly connected to the lower end of the bolt. A clamping direction mark is provided on the upper end face of the bolt. A lock nut is provided on the bolt, and the lock nut is located above the cover plate.

[0015] The cover plate is made of galvanized steel plate.

[0016] The clamping plate adopts a strip structure and extends towards one side of the bolt. The clamping plate is made of steel plate.

[0017] Two lock nuts are provided on the bolt.

[0018] The utility model has the following advantages and positive effects: By using bolts with clamping plates to lock the cover plate on the construction opening, the cover plate has good stability, is not easy to be damaged, has high safety, and can be conveniently opened or closed as needed. It is convenient to disassemble and assemble, has a simple structure, is easy to maintain, is convenient for eliminating potential safety hazards, and is relatively easy to use. At the same time, it has low cost, can be mass-produced in a standardized manner, can be reused, and has a beautiful structure. Brief Description of the Drawings

[0019] Figure 1 is the front view of the utility model;

[0020] Figure 2 is the top view of the utility model;

[0021] Figure 3 is the perspective view of the utility model.

[0022] In the figure: 1. Cover plate; 2. Bolt; 3. Clamping plate; 4. Clamping direction mark; 5. Lock nut. Detailed Description of the Preferred Embodiment

[0023] In order to further understand the content, features and effects of the present invention, the following embodiments are cited and detailed as follows in conjunction with the accompanying drawings:

[0024] Please refer to Figures 1 to 3 , a protective structure for the construction opening of a floor slab, including a cover plate 1. Along the circumferential direction of the edge of the cover plate 1, at least three bolts 2 are evenly distributed. The bolts 2 are perpendicular to the cover plate 1. The bolts 2 are movably inserted through the cover plate 1. At the lower end of the bolts 2, a clamping plate 3 perpendicular to them is fixedly connected. On the upper end face of the bolts 2, a clamping direction mark 4 is provided. On the bolts 2, a lock nut 5 is provided, and the lock nut 5 is located above the cover plate 1.

[0025] A more preferred solution of this embodiment is as follows:

[0026] The cover plate 1 is made of galvanized steel sheet, with excellent corrosion resistance, paintability, formability and spot weldability.

[0027] The clamping plate 3 adopts a strip structure and extends towards one side of the bolt 2. The clamping plate 3 is made of steel plate, with simple structure and good economy.

[0028] There are 2 lock nuts provided on the bolt 2. Double-nut locking is adopted, which can prevent loosening.

[0029] The installation and disassembly steps of the above protective structure are as follows:

[0030] First, rotate the bolt to turn the clamping plate to the lower side of the cover plate, then cover the cover plate directly above the construction opening of the floor slab. Rotate the bolt again to screw out the clamping plate from the cover plate and make it located at the set clamping position. The set clamping position is determined by the clamping direction mark. Then lock the double nuts. The disassembly steps are opposite to the installation steps. When removing the cover plate, loosen the lock nut, make the clamping plate disengage from the floor slab, and then rotate the bolt in the reverse direction to turn the clamping plate to the lower side of the cover plate. Lift the cover plate to remove it. The installation and disassembly are simple and convenient, and will not cause damage to the floor slab structure. After disassembly, it can be reused multiple times, with good economy.

[0031] Although the preferred embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose and scope protected by the claims of the present invention. These all fall within the protection scope of the present invention.

Claims

1. A protective structure for a floor construction opening, comprising a cover plate, characterized in that: At least three bolts are evenly distributed along the circumferential direction on the edge of the cover plate, the bolts are perpendicular to the cover plate, the bolts are movably inserted into the cover plate, a clamping plate perpendicular to the bolts is fixedly connected to the lower end of the bolts, a clamping direction mark is provided on the upper end surface of the bolts, a lock nut is provided on the bolt, and the lock nut is located above the cover plate.

2. The protective structure for floor construction openings according to claim 1, characterized in that: The cover plate is made of galvanized steel plate.

3. The protective structure for floor construction openings according to claim 1, characterized in that: The clamping plate adopts a strip structure and extends to one side of the bolt. The clamping plate is made of a steel plate.

4. The protective structure for floor construction openings according to claim 1, characterized in that: Two lock nuts are arranged on the bolt.

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