Temporary plugging device for basement outer wall reserved hole
The sealing device, consisting of screws and positioning plates, solves the problem of incomplete sealing of pre-reserved holes in basement exterior walls, achieving good sealing effect, convenient disassembly and assembly, and green construction, reducing construction costs and generating less construction waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI WATER CONSERVANCY DEV CO LTD
- Filing Date
- 2025-02-26
- Publication Date
- 2026-05-22
Smart Images

Figure CN224266394U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of engineering construction equipment, and in particular relates to a temporary sealing device for reserved holes in the exterior wall of a basement. Background Technology
[0002] In basement construction projects, it is common to encounter problems such as abundant groundwater in the construction site, and the backfilling of the basement causing outdoor sewage and backfill soil to flow back into the basement through pre-reserved openings in the exterior walls, resulting in pollution. Currently, in most projects, during the waterproofing or backfilling work of the basement exterior walls, materials such as bricks, concrete blocks, cardboard blocks, foam boards, or cement mortar are used to temporarily seal the pre-reserved openings to prevent damage and pollution.
[0003] However, these sealing materials and methods have many shortcomings, such as: incomplete sealing, troublesome post-construction cleaning, generation of construction waste, high labor costs, and potential damage to pre-installed sleeves and waterproof membranes. They do not meet the requirements of green construction development. Therefore, further research is needed to develop standardized, regulated, and recyclable construction techniques for the temporary sealing of pre-reserved holes in basement exterior walls that better align with green construction requirements. Utility Model Content
[0004] The purpose of this utility model is to provide a temporary sealing device for reserved holes in the exterior wall of basements, which solves the problems of existing sealing equipment such as incomplete sealing, troublesome post-cleaning, generation of construction waste, high labor cost for sealing, and easy damage to reserved sleeves and waterproof membranes.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] A temporary sealing device for a reserved opening in the exterior wall of a basement includes a screw rod for extending into the reserved opening, one end of which is equipped with a positioning plate. The positioning plate is a strip structure with both ends used to support the opening on one side of the reserved opening.
[0007] The other end of the screw is a first threaded part and is provided with a plate. The plate is used to block and seal the other side of the reserved hole. The side of the plate covering the reserved hole is also provided with a rubber gasket to improve the sealing effect.
[0008] The plate has a through hole for the first threaded portion of the screw to pass through, and a flange nut is installed thereon.
[0009] Furthermore, the end of the screw is hinged to the center of the positioning plate in a flip-type manner.
[0010] Furthermore, the positioning plate has a hinge plate at its center, and the screw end has a hinge shaft. The hinge plate has a hinge hole through which the hinge shaft passes. The screw has a second threaded portion corresponding to the hinged end, and a threaded sleeve is detachably fitted onto it. The hinge shaft is fixed to the threaded sleeve. The screw end corresponding to the first threaded portion has a square rotating block.
[0011] Furthermore, the plate body has a raised positioning ring on the corresponding covered side, and the rubber pad is an annular washer used for fitting and positioning onto the positioning ring.
[0012] This utility model has the following beneficial effects: it allows for the simple modification and reuse of on-site waste materials to achieve sustainable development; it is easy to assemble and disassemble with minimal structural damage, does not affect basement exterior wall waterproofing or backfilling, effectively avoids hole contamination and leakage, and has an aesthetically pleasing appearance, conforming to standardized development trends. It provides a feasible solution for temporary sealing of pre-reserved openings in basements of later projects, achieving cost reduction and efficiency improvement. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0014] Figure 1 : Schematic diagram of the structure of this utility model when it is removed from the exterior wall.
[0015] Figure 2 : A schematic diagram of the structure of the positioning plate and screw in the combined state of this utility model.
[0016] Figure 3 : A schematic diagram of the positioning plate and screw of this utility model in the disassembled state.
[0017] Figure 4 : Schematic diagram of the structure of this utility model when installed on an exterior wall.
[0018] The components represented by each number in the attached diagram are listed below: reserved hole 1, screw 3, positioning plate 2, first threaded part 31, plate 4, rubber pad 6, flange nut 5, hinge plate 21, hinge shaft 71, second threaded part 32, screw sleeve 7, rotating block 33, positioning ring 41. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] like Figures 1-4As shown: A temporary sealing device for a reserved opening in the exterior wall of a basement includes a screw rod 3 for extending into the reserved opening 1. A positioning plate 2 is installed at one end of the screw rod 3. The positioning plate 2 is a strip structure, and both ends are used to support the opening on one side of the reserved opening 1. The center of the positioning plate is installed with the end of the screw rod, and the positioning plate and the screw rod form a vertical structure.
[0021] The other end of the screw 3 is the first threaded part 31, and is provided with a plate 4. The plate 4 is used to block and seal the other side of the reserved hole 1. The side of the plate 4 covering the reserved hole 1 is also provided with a rubber pad 6 to improve the sealing effect. The plate is a wooden board, square, which is convenient to obtain materials on the construction site.
[0022] The plate 4 has a through hole through which the first threaded portion 31 of the screw passes and is fitted with a flange nut 5.
[0023] This sealing device is suitable for single-sided operation on exterior walls. During installation, the positioning plate is moved out of the wall through the pre-drilled hole to the other side. The two ends of the positioning plate form a support with the opening side of the pre-drilled hole. Then, the screw is installed. The screw acts as a tension force. The pre-drilled hole corresponds to the inner wall side of the wall as the sealing side. It is sealed by the plate and rubber gasket. The end of the screw passes through the plate and is tightened by the flange nut. Rotating the flange nut makes the plate press against the opening side of the pre-drilled hole. It also facilitates the removal of the components later.
[0024] like Figure 2 As shown: The end of the screw 3 is hinged to the center of the positioning plate 2 via a flip-type hinge. This allows the positioning plate and screw to be flipped over and inserted along the pre-drilled hole to the other side of the hole. Then, the positioning plate can be flipped over to form a support.
[0025] like Figure 3 As shown: The positioning plate 2 has a hinge plate 21 in the center, and the screw 3 has a hinge shaft 71 at its end. The hinge plate 21 has a hinge hole through which the hinge shaft 71 passes. The screw 3 has a second threaded portion 32 corresponding to the hinged end, and a screw sleeve 7 is detachably fitted onto it. The hinge shaft 71 is fixed to the screw sleeve 7. This facilitates the removal of the positioning plate during later disassembly. The screw sleeve can be separated by rotating the screw, and then the positioning plate and screw sleeve can be removed as a whole. The screw 3 has a square rotating block 33 at its end corresponding to the first threaded portion 31. This allows the screw to be rotated using tools to separate the screw sleeve from the screw.
[0026] like Figure 1 As shown: the plate 4 has a raised positioning ring 41 on the corresponding covered side, and the rubber pad 6 is an annular washer used for fitting and positioning onto the positioning ring 41. This facilitates the positioning and installation of the rubber pad.
[0027] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.
Claims
1. A temporary sealing device for pre-reserved openings in the exterior wall of a basement, characterized in that: Includes a screw (3) for extending into the reserved hole (1), one end of which is equipped with a positioning plate (2), which is a strip structure and is used at both ends to support the opening on one side of the reserved hole (1); The other end of the screw (3) is a first threaded part (31) and is provided with a plate (4). The plate (4) is used to block the other side of the reserved hole (1). The side of the plate (4) covering the reserved hole (1) is also provided with a rubber pad (6) to improve the sealing effect. The plate (4) has a through hole through which the first threaded portion (31) of the screw passes and is fitted with a flange nut (5).
2. The temporary sealing device for reserved openings in the exterior wall of a basement according to claim 1, characterized in that: The end of the screw (3) is hinged to the center of the positioning plate (2) by a flip-type hinge.
3. The temporary sealing device for reserved openings in the exterior wall of a basement according to claim 2, characterized in that: The positioning plate (2) has a hinge plate (21) in the center and a hinge shaft (71) at the end of the screw (3). The hinge plate (21) has a hinge hole through which the hinge shaft (71) passes.
4. The temporary sealing device for reserved openings in the exterior wall of a basement according to claim 3, characterized in that: The screw (3) has a second threaded part (32) at the hinge end and is detachably fitted with a screw sleeve (7), and the hinge shaft (71) is fixed to the screw sleeve (7).
5. The temporary sealing device for a pre-reserved opening in the exterior wall of a basement according to claim 4, characterized in that: The screw (3) has a square rotating block (33) at the end corresponding to the first threaded part (31).
6. The temporary sealing device for reserved openings in the exterior wall of a basement according to claim 1, characterized in that: The plate (4) has a raised positioning ring (41) on the corresponding covered side, and the rubber pad (6) is an annular washer used for fitting and positioning on the positioning ring (41).