Protective structure for preventing objects from falling before building flue construction

By installing vertical pipes and inclined nets at the flue openings in the building structure, combined with clamps and covers, the problem of insufficient protection for floor slab openings was solved, enabling effective containment of large concrete blocks and collection of small particles, thus improving construction safety.

CN223675879UActive Publication Date: 2025-12-16CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD +1
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Patent Information

Application Number
CN202422905376.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-12-16
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Before the building's flue was constructed, the holes in the floor slab lacked effective protection, causing large pieces of solidified concrete to fall and scatter, affecting construction safety.

Method used

The structure employs vertical pipes and inclined netting, combined with clamping plates, sealing covers, and gap covers to form a protective structure that catches large pieces of concrete and collects small particles to prevent them from scattering.

Benefits of technology

It improved the safety of the construction site, prevented large pieces of concrete from rolling down at will, and ensured the safe movement of workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection structure for preventing an object from falling before construction of a building flue. The protection structure comprises a vertical pipe, a vertical pipe and a vertical pipe, wherein the vertical pipe is mounted at a flue hole; and an inclined object receiving net is mounted and fixed on the vertical pipe. The object receiving net in the inclined state receives large solidified concrete, large substances generated when the solidified concrete is impacted and scattered can also be received by the object receiving net, only small particles fall onto the plugging cover plate from the object receiving net, the situation that scattered and tumbled solidified concrete appears on a building body on the lower layer is avoided, and the construction efficiency is improved. The safety of field operation personnel during construction walking is improved, and the problem that the safety of the field operation personnel during construction walking is affected due to the fact that large solidified concrete falls off and rolls off at will in the prior art is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of protection structure for preventing falling object before building body flue is not constructed, belong to building construction technical field. BACKGROUND

[0002] When high-rise building is built, in order to realize unified smoke exhaust, flue needs to be reserved during building body pouring construction, and then unified construction is carried out after building body pouring construction is completed. Therefore, before building body flue is not constructed, a flue hole needs to be protected on the floor.

[0003] The existing floor hole protection technology is disclosed in Chinese patent No. CN209686908U. Although the cover plate can be installed at the hole by the support rod on the floor to achieve protection, when the upper floor is under construction, the large solidified concrete will scatter and roll randomly when it falls from the unprotected flue hole in the upper layer and hits the cover plate, affecting the safety of the on-site construction personnel during construction. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a protection structure for preventing falling object before building body flue is not constructed.

[0005] The utility model is achieved by the following technical solutions.

[0006] The utility model provides a protection structure for preventing falling object before building body flue is not constructed, which comprises:

[0007] A vertical pipe is installed at the flue hole.

[0008] An inclined object catching net is fixed on the vertical pipe.

[0009] It also includes a clamping plate clamped inside the flue hole, and the vertical pipe is fixed on the clamping plate.

[0010] The clamping plate is L-shaped, and four clamping plates are arranged at the four corners of the flue hole.

[0011] The vertical pipe is a circular steel pipe.

[0012] It also includes a building body with a flue hole, and the opposite clamping plates are installed inside the flue hole through a threaded telescopic rod.

[0013] The side and bottom edges of the object catching net are fixed with a fence, and a discharge port is provided on the object catching net.

[0014] The clamping plate is provided with a sliding groove, and a blocking cover plate is slidably installed in the sliding groove and covers the chimney hole of the building.

[0015] The blocking cover plate is rotatably connected with a gap cover plate through a hinge on the left and right sides.

[0016] The beneficial effects of the utility model lie in that the object receiving net in the inclined state receives the large pieces of solidified concrete, and the large pieces of material scattered by the impact of the solidified concrete can also be received by the object receiving net, only small particles fall onto the blocking cover plate from the object receiving net, the situation that the solidified concrete scattered and rolled down on the lower building is avoided, the safety of the on-site operating personnel during construction walking is improved, and the problem that the large pieces of solidified concrete fall and roll down at will in the prior art affects the safety of the on-site operating personnel during construction walking is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural diagram of the utility model Figure One ;

[0018] Figure 2 is a structural diagram of the utility model Figure Two ;

[0019] In the drawing: 1 - building; 11 - chimney hole; 12 - threaded telescopic rod; 2 - clamping plate; 21 - blocking cover plate; 3 - vertical pipe; 4 - object receiving net; 42 - material discharging cover plate; 41 - baffle edge; 22 - gap cover plate. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further described below, but the scope of protection is not limited to the description.

[0021] As Figures 1 to 2 shown.

[0022] The application discloses a protection structure for preventing falling objects before construction of a building chimney, which comprises:

[0023] The clamping plate 2 is clamped in the inner side of the chimney hole 11, the clamping plate 2 is L-shaped, and the L-shaped clamping plate 2 is correspondingly clamped and arranged on the building 1 at the chimney hole 11; the clamping plate 2 is four, and the four clamping plates 2 are correspondingly clamped and arranged at the four corners of the rectangular chimney hole 11.

[0024] The opposite clamping plates 2 are installed in the inner side of the chimney hole 11 by means of the threaded telescopic rod 12. The four clamping plates 2 are welded and fixed with vertical pipes 3, the vertical pipes 3 are composed of circular steel pipes, and the four vertical pipes 3 correspond to the four clamping plates 2.

[0025] The vertical pipe 3 is tied or welded with the inclined object net 4, and the object net 4 is a woven mesh or a steel mesh. When the steel mesh is used to form the object net 4, the object net 4 has the edge 41 on the side and bottom edges. The object net 4 is provided with a discharge port, and the object net 4 at the discharge port is rotatably connected with the discharge cover plate 42, which is at the lowest position of the inclined object net 4. The discharge cover plate 42 can be opened by rotating, and the solidified concrete is discharged uniformly.

[0026] The clamping plate 2 is provided with a sliding groove, and the blocking cover plate 21 is slidably installed in the sliding groove, Figure 1 The blocking cover plate 21 covers the flue hole 11 of the lower floor 1. Since the blocking cover plate 21 is slidably connected with the clamping plate 2, the left and right side edges of the blocking cover plate 21 have gaps with the flue hole 11. Therefore, the left and right side edges of the blocking cover plate 21 are rotatably connected with the gap cover plate 22 through the hinge. After the blocking cover plate 21 is slidably positioned, the hinge is connected with the gap cover plate 22 and the blocking cover plate 21 through the screw, so that the gap cover plate 22 can be tangent to the clamping plate 2 to limit the position, and the gap cover plate 22 covers the gap between the left and right side edges of the blocking cover plate 21 and the flue hole 11. When the blocking cover plate 21 is slid out, the screw and the hinge connecting the gap cover plate 22 and the blocking cover plate 21 are removed, and then the blocking cover plate 21 is slid out of the sliding groove on the clamping plate 2.

[0027] The method for preventing falling objects before the construction of the floor flue of the present application comprises: the lower floor 1 is constructed to form a protection structure for preventing falling objects before the construction of the floor flue, and when the upper floor 1 is under construction, the solidified concrete falls from the flue hole 11 of the upper floor 1. At this time, when the solidified concrete falls to the object net 4, the inclined object net 4 can catch the large pieces of solidified concrete, and the large pieces of solidified concrete scattered by impact can also be caught by the object net 4. Only small particles fall from the object net 4 to the blocking cover plate 21, so that the situation of scattered and rolled solidified concrete on the lower floor 1 is avoided, the safety of the on-site construction personnel during construction is improved, and the problem of the random rolling of the large pieces of solidified concrete in the prior art, which affects the safety of the on-site construction personnel during construction, is solved.

[0028] The solidified concrete is collected at the bottom edge of the inclined object net 4, and the discharge cover plate 42 on the object net 4 is opened in the later stage to discharge the collected solidified concrete for collection and transportation to the fertilizer groove for backfilling treatment.

Claims

1. A protection structure for preventing falling objects before the construction of a building chimney, characterized in that, The utility model relates to a smoke hole sealing device for building, including: Install vertical pipe (3) at the flue hole (11); The object net (4) of the inclined state is fixed on the vertical pipe (3); It further includes the clamping plate (2) clamped in the inside of the flue hole (11), and the vertical pipe (3) is fixed on the clamping plate (2); The clamping plate (2) is L-shaped, and four clamping plates (2) are correspondingly clamped and placed in the four corners of the flue hole (11), and the vertical pipe (3) is fixed on the four clamping plates (2); The clamping plate (2) is provided with a sliding groove, the sliding groove is slidably installed with the blocking cover plate (21) in front and back, and the blocking cover plate (21) covers the flue hole (11) of the building (1).

2. The falling object protection structure for a building chimney under construction according to claim 1, characterized in that: The vertical pipe (3) is a circular steel pipe.

3. The falling object protection structure for a building chimney under construction according to claim 1, wherein: It further includes the building (1) of the flue hole (11), and the opposite clamping plate (2) is tightly installed in the inside of the flue hole (11) through the screw telescopic rod (12).

4. The falling object protection structure for a building chimney under construction according to claim 1, wherein: The side edge and the bottom edge of the object net (4) are fixed with the fence edge (41), the object net (4) is provided with the discharge port, the object net (4) at the discharge port is rotatably hinged with the discharge cover plate (42), and the discharge cover plate (42) is at the lowest part of the inclined object net (4).

5. The falling object protection structure for a building chimney under construction according to claim 1, wherein: The left and right side edges of the blocking cover plate (21) are rotatably hinged with the gap cover plate (22) through the hinge, and the gap cover plate (22) is tangent to the clamping plate (2).

Citation Information

Patent Citations

  • Cast-in-place floor reserved hole protection device

    CN209686908U