A cast-in-place floor reserved hole protection device

Abstract

The utility model relates to a cast-in-place floor reserved hole protection device belongs to hole protection technical field to solve the problem of traditional reserved hole safety protection setting not firm, easy to move, big security risk's defect. The present application includes the protection board and the rotating piece, the protection board is installed in the cast-in-place floor near the reserved hole through the rotating piece, the protection board rotates around the rotating piece towards the reserved hole and covers in the reserved hole to constitute the protection end. The cast-in-place floor reserved hole protection device of the present application sets up the hinge as the rotating piece, makes the protection board install in the reserved hole side with the rotary motion, needs to protect, turns over the protection board and covers the reserved hole, needs to construct, turns over the protection board again to carry out construction in the reserved hole. The protection device of the present application is firmly and stably connected with the cast-in-place floor structure, needs to turn over the protection board only, does not use the closed protection board, realizes fixed, recyclable use.

Description

Technical Field

[0001] This utility model relates to a protective device for reserved openings in cast-in-place floor slabs, belonging to the field of opening protection technology. Background Technology

[0002] During the construction process, especially in cast-in-place concrete slabs, various openings are left for subsequent construction needs, such as common layout openings, material transfer openings, and flue openings. Their safety protection management has become one of the key points of risk control.

[0003] Floor slab openings are typically square or rectangular. Existing safety measures for these openings usually consist of cover plates or steel mesh installed on the front of the opening. However, due to construction needs, workers often relocate or remove these safety measures, sometimes even losing them entirely. These untimely removals and falls pose a significant safety risk, as workers near the edge may suffer injuries or fatalities from falling materials or tools. Therefore, reducing the probability of accidents caused by inadequate or relocated safety measures at floor slab openings is a pressing technical challenge for civil engineers. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for reserved openings in cast-in-place floor slabs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for reserved openings in cast-in-place floor slabs, comprising a protective plate and a rotating component, wherein the protective plate is rotatably installed on the cast-in-place floor slab adjacent to the reserved opening via the rotating component; the protective plate rotates around the rotating component toward the reserved opening and covers the reserved opening to form a protective end.

[0006] Specifically, the protective plate includes a first protective plate and a second protective plate; the first protective plate is fixedly installed on the cast-in-place floor slab near the reserved opening by a fastener, and the second protective plate is rotatably connected to the first protective plate by a rotating component, and the second protective plate rotates around the rotating component toward the reserved opening and covers the reserved opening to form a protective end.

[0007] Specifically, the protective panels are made from template waste.

[0008] Specifically, the rotating component is a hinge.

[0009] Specifically, one end of the hinge is detachably and fixedly connected to the first protective plate by a self-tapping screw, and the other end is detachably and fixedly connected to the second protective plate by a self-tapping screw.

[0010] Specifically, both the first and second protective plates are square plate structures; each side of the second protective plate is at least 100mm away from the adjacent reserved opening.

[0011] Specifically, both the first and second protective plates are rectangular plate structures, and the width of the first protective plate is at least 140mm, while the length of the second protective plate is the same.

[0012] Specifically, a reinforcing plate is fixedly installed on the second protective plate at the position corresponding to the reserved opening.

[0013] Specifically, the reinforcing plate consists of several wooden blocks; these wooden blocks are installed parallel to each other and evenly spaced on the second protective plate, with the distance between two adjacent wooden blocks not exceeding 200mm.

[0014] Specifically, the cross-section of the timber is trapezoidal, with the side of the timber on the second protective plate being the long side of the parallel opposite sides of the trapezoidal structure, and the other side being the short side of the parallel opposite sides of the trapezoidal structure. The long side of the parallel opposite sides of the timber's trapezoidal structure is 5mm longer than the diameter of the reserved opening, and the short side of the parallel opposite sides of the timber's trapezoidal structure is 35mm shorter than the diameter of the reserved opening.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The protective device for reserved openings in cast-in-place floor slabs of this application uses a hinge as a rotating component, allowing the protective plate to be installed on the side of the reserved opening through rotation. When protection is needed, the protective plate is flipped over to cover the reserved opening; when construction is required, the protective plate is flipped over again to expose the reserved opening for construction. The protective device of this application is firmly and stably connected to the cast-in-place floor slab structure. It only requires flipping the protective plate when needed and can be closed when not in use, achieving fixation and reusability.

[0016] 2. Based on the foregoing, the protective plate of this application includes a first protective plate and a second protective plate, which are rotatably connected by a hinge. The first protective plate is fixedly installed to the cast-in-place floor slab using fasteners, while the second protective plate can be rotated to form a protective end that can be used to protect a pre-reserved opening. This results in a simple protective device structure, low manufacturing difficulty, ease of manufacture, and widespread application.

[0017] 3. Based on the foregoing, the protective panel of this application is made from template waste. This achieves the utilization of conventional materials such as on-site template waste, turning waste into treasure, saving resources, reducing waste, and lowering manufacturing costs.

[0018] 4. Based on the foregoing, one end of the hinge in this application is detachably and fixedly connected to the first protective plate via a self-tapping screw, and the other end is detachably and fixedly connected to the second protective plate via a self-tapping screw. This allows for the disassembly of small components such as the hinge after the pre-reserved opening has been removed and sealed, enabling them to be recycled and reused, thereby reducing construction costs.

[0019] 5. Based on the foregoing, both the first and second protective plates of this application are square plate structures; each side of the second protective plate is at least 100mm away from the adjacent reserved opening. The protective device product of this application is highly adaptable, flexible in use, and can be applied to reserved openings of different sizes and irregular shapes.

[0020] 6. Based on the foregoing, both the first and second protective plates of this application are rectangular plate structures, and the width of the first protective plate is at least 140mm, while the length of the second protective plate is the same as its length. The protective device of this application is simple to install and easy to learn; with only a brief explanation, a carpenter can fabricate and install it on-site.

[0021] 7. Based on the foregoing, a reinforcing plate is fixedly installed on the second protective plate of this application at the position corresponding to the reserved opening, so as to improve the rigidity of the second protective plate at the opening when the size of the reserved opening is large, thereby improving the construction safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the reserved opening protection device for the reserved opening in the cast-in-place floor slab in this embodiment; Figure 2 for Figure 1 Sectional view at point AA; Figure 3 This is a schematic diagram of the timber structure of the protective device for the reserved opening in the cast-in-place floor slab in this embodiment.

[0023] In the diagram: 1. Cast-in-place floor slab; 2. Reserved opening; 3. First protective plate; 4. Second protective plate; 5. Self-tapping screws; 6. Hinges; 7. Cement nails; 8. Timber. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. For clarity, the reserved opening shape on the cast-in-place floor slab in this embodiment is a rectangular structure, with a long side dimension of H mm and a short side dimension of B mm.

[0025] Please see Figures 1-3 This embodiment discloses a protective device for reserved openings in cast-in-place floor slabs, including a protective plate and a rotating component. The protective plate includes a first protective plate 3 and a second protective plate 4. The first protective plate 3 is fixedly installed on the cast-in-place floor slab 1 adjacent to the reserved opening 2 by cement steel nails 7 with a length of 50mm. The second protective plate 4 is rotatably connected to the first protective plate through the rotating component, and the second protective plate rotates around the rotating component toward the reserved opening and covers the reserved opening to form a protective end.

[0026] The protective plate in this embodiment is made from template waste. The rotating component is a 2-inch hinge 5. One end of the hinge is detachably fixed to the first protective plate by a self-tapping screw 6, and the other end is detachably fixed to the second protective plate by a self-tapping screw.

[0027] Furthermore, in this embodiment, both the first and second protective plates are rectangular plate structures, with the width of the first protective plate being 140mm and the length of the second protective plate being the same as its length. In this embodiment, the distance between each side of the second protective plate and the adjacent pre-reserved opening is 100mm.

[0028] Considering the large size of the reserved opening, the rigidity of the second protective plate at the opening will be reduced. In this embodiment, several wooden blocks 8 are fixedly installed on the second protective plate at positions corresponding to the reserved opening. The wooden blocks are evenly distributed parallel to each other along the long side of the second protective plate, and the spacing between them shall not exceed 200mm. The wooden blocks are fixed to the second protective plate with cement nails. In addition, the cross-section of the wooden blocks in this embodiment is trapezoidal, and the plate on one side of the second protective plate is the long side of the parallel opposite side of the trapezoidal structure, and the plate on the other side is the short side of the parallel opposite side of the trapezoidal structure. The length of the parallel opposite side of the trapezoidal structure of the wooden block is 5mm longer than the diameter of the reserved opening, and the length of the parallel opposite side of the trapezoidal structure of the wooden block is 35mm shorter than the diameter of the reserved opening.

[0029] Working Principle: In this embodiment, the protective device for pre-reserved openings in cast-in-place floor slabs involves the following steps: First, construction workers select appropriately sized template waste to fabricate a first and second protective plate based on the shape and dimensions of the pre-reserved opening. Next, cement nails are used to fix the first protective plate to the side of the cast-in-place floor slab near the pre-reserved opening. Then, hinges are used to rotate and install the second protective plate onto the first protective plate. The second protective plate is then flipped over to cover the pre-reserved opening, and markings are made on the second protective plate at positions corresponding to the pre-reserved opening. Finally, based on these markings, several wooden blocks are used to reinforce the rigidity of the second protective plate.

[0030] During construction, workers simply flip the second protective plate to expose the reserved opening for work. Outside of construction periods, workers simply flip the second protective plate to reseal the reserved opening. After the reserved opening is sealed, workers remove the hinges and recycle the device. This embodiment of the cast-in-place floor slab reserved opening protection device mainly consists of a first protective plate and a second protective plate connected by hinges, effectively solving the shortcomings of traditional reserved opening safety protection devices, such as instability, easy movement, and high safety risks.

[0031] The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. For those skilled in the art, after learning the contents of the present invention, several equivalent changes and substitutions can be made without departing from the principle of the present invention. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A protective device for reserved openings in cast-in-place floor slabs, comprising a protective plate and a rotating component, characterized in that: The protective plate is rotatably installed on the cast-in-place floor slab near the reserved opening via a rotating component; the protective plate rotates around the rotating component toward the reserved opening and covers the reserved opening to form a protective end.

2. The protective device for reserved openings in cast-in-place floor slabs according to claim 1, characterized in that: The protective plate includes a first protective plate and a second protective plate; the first protective plate is fixedly installed on the cast-in-place floor slab near the reserved opening by a fastener, and the second protective plate is rotatably connected to the first protective plate by a rotating member, and the second protective plate rotates around the rotating member toward the reserved opening and covers the reserved opening to form a protective end.

3. The protective device for reserved openings in cast-in-place floor slabs according to claim 1, characterized in that: The protective panel is made from template waste.

4. The protective device for reserved openings in cast-in-place floor slabs according to claim 2, characterized in that: The rotating component is a hinge.

5. A protective device for reserved openings in cast-in-place floor slabs according to claim 4, characterized in that: One end of the hinge is detachably and fixedly connected to the first protective plate by a self-tapping screw, and the other end is detachably and fixedly connected to the second protective plate by a self-tapping screw.

6. A protective device for reserved openings in cast-in-place floor slabs according to claim 2, characterized in that: Both the first and second protective plates are square plate structures; each side of the second protective plate is at least 100mm away from the adjacent reserved opening.

7. A protective device for reserved openings in cast-in-place floor slabs according to claim 6, characterized in that: Both the first and second protective plates are rectangular plate structures, and the width of the first protective plate is at least 140mm, while the length of the second protective plate is the same.

8. A protective device for reserved openings in cast-in-place floor slabs according to claim 2, characterized in that: A reinforcing plate is fixedly installed on the second protective plate at the position corresponding to the reserved opening.

9. A protective device for reserved openings in cast-in-place floor slabs according to claim 8, characterized in that: The reinforcing plate comprises several wooden blocks; the several wooden blocks are installed relatively parallel and evenly spaced on the second protective plate, and the distance between two adjacent wooden blocks is no more than 200mm.

10. A protective device for reserved openings in cast-in-place floor slabs according to claim 9, characterized in that: The cross-section of the timber is trapezoidal, with the side of the timber on the second protective plate being the long side of the parallel opposite sides of the trapezoidal structure, and the other side being the short side of the parallel opposite sides of the trapezoidal structure. The long side of the parallel opposite sides of the timber's trapezoidal structure is 5mm longer than the diameter of the reserved opening, and the short side of the parallel opposite sides of the timber's trapezoidal structure is 35mm shorter than the diameter of the reserved opening.

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