Temporary floor hole retaining and plugging device

Abstract

The utility model relates to a floor temporary hole indwelling and plugging device, which comprises a hole forming die, an opposite-pull screw rod, an upper pipe clamp, a lower pipe clamp, an upper support pipe, a lower support pipe and a bottom template, a cross rod is arranged at the upper hole of the hole forming die, and the bottom template comprises an outer frame plate and an inner plate which can be detachably opened relative to the outer frame plate. A lower hole opening of the hole forming mold abuts against the upper plane of the inner plate to be sealed, and when the inner plate is opened or detached relative to the outer frame plate, the lower hole opening of the hole forming mold is exposed; the opposite-pull screw penetrates through the middle of the inner plate, the top of the opposite-pull screw extends out of an upper orifice of the pore-forming mold to be connected with an upper supporting pipe, an upper pipe clamp and a locking piece, the bottom of the opposite-pull screw extends out of the lower end face of the inner plate to be connected with a lower supporting pipe and a lower pipe clamp locking piece, and when the locking piece and the opposite-pull screw are locked, the pore-forming mold and the bottom mold plate are clamped; and the outer frame plate of the bottom template is connected with an embedded part which is embedded and fixed with the floor when the floor is poured. By means of the structure, disassembly, assembly and use are convenient, and repeated turnover use can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of construction and is a temporary opening retaining and blocking device for a floor slab. Background Art

[0002] In existing building construction, floor slabs often need to reserve openings to facilitate other construction operations such as pipelines. The existing temporary opening retention structure of the floor slab mainly adopts a hole-forming mold in conjunction with the wooden formwork support under the floor slab, but after the floor slab is poured, the wooden formwork needs to be removed, which is time-consuming and labor-intensive, and the reserved openings need to be sealed in the later stage, and the wooden formwork needs to be set up, which is a large workload and the overall construction efficiency is poor. In order to solve this problem, as the authorization announcement number CN219196723U published in the Chinese patent literature, the authorization announcement date is June 16, 2023, and the utility model name is "A prefabricated component with reserved holes in a concrete floor slab", which mainly discloses a structure that can be exempted from the formwork structure, and the hole prefabricated component is directly connected to the steel mesh of the floor slab to form an integral structure, so that the overall construction is more convenient, and the top of the prefabricated component can be effectively blocked by a temporary cover plate, thereby improving construction safety. However, the overall cost of the above-mentioned scheme is relatively high, the prefabricated components cannot be reused, and the bottom of the hole still needs to be blocked by formwork and poured later, and the formwork structure for blocking construction is still relatively cumbersome. Therefore, it is necessary to improve the existing building floor hole retention structure and blocking structure. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a temporary floor opening retention and plugging device to the art, so as to solve the technical problems of the existing similar floor opening retention and plugging devices, such as the complex formwork structure, high cost and inconvenient construction. The purpose is achieved through the following technical solutions.

[0004] A temporary hole retention and plugging device for a floor slab, the device comprises a hole retention device and a hole plugging device, the structural key points of which are that the hole retention device comprises a hole-forming mold, a tension screw, an upper pipe clamp, a lower pipe clamp, an upper support pipe, a lower support pipe, and a bottom template, the upper hole of the hole-forming mold is provided with a cross bar, the bottom template comprises an outer frame plate and an inner plate which is detachably opened relative to the outer frame plate, the lower hole of the hole-forming mold abuts against the plane on the inner plate in a sealed state, when the inner plate is opened or disassembled relative to the outer frame plate, the lower hole of the hole-forming mold is exposed; the tension screw passes through the middle of the inner plate The top of the tension screw extends out of the upper hole of the hole-forming mold to connect with the upper pipe clamp and the locking piece, and the bottom of the tension screw extends out of the lower end surface of the inner plate to connect with the lower pipe clamp and the locking piece. An upper support tube is arranged between the upper pipe clamp and the upper hole of the hole-forming mold, and a lower support tube is arranged between the lower pipe clamp and the bottom surface of the inner plate. When the locking piece is locked with the tension screw, the upper pipe clamp and the lower pipe clamp clamp the upper support tube and the lower support tube, that is, the upper support tube and the lower support tube form a clamping limit for the hole-forming mold and the bottom template; the outer frame plate of the bottom template is connected with an embedded part that is embedded and fixed with the floor slab when the floor slab is cast. Through the above structure, the hole-forming mold and the bottom template are effectively connected as one, so that after the hole-forming mold is fixed to the steel bars of the floor slab, the position of the bottom template is effectively limited, and no additional positioning support is required for the bottom template. When the floor slab is poured, the tension screws, upper pipe clamps, lower pipe clamps, upper support pipes, and lower support pipes are removed, and the hole-forming mold is taken out by operating the crossbar, and the inner plate of the bottom template can be opened or disassembled, so as to facilitate the use of the hole. The above-mentioned outer frame plate is effectively fixed to the floor slab through embedded parts, which is convenient for subsequent use with the inner plate.

[0005] The embedded parts include bolts and inverted tapered anti-pullout parts, that is, they are fixed to the outer frame plate by thread locking of the bolts and the anti-pullout parts. This structure is used as a specific implementation structure for casting and fixing the outer frame plate to the floor slab.

[0006] One side of the inner plate of the bottom template is hinged with the outer frame plate to be turned over. Through this structure, the inner plate can be turned over and opened relative to the bottom template, so that it does not need to be disassembled, effectively preventing the inner plate from being lost and facilitating subsequent use operations.

[0007] The outer frame plate of the bottom template is provided with a rotating stopper for limiting the inner plate in the outer frame plate. Through this structure, the outer frame plate and the inner plate are convenient for quick matching and positioning.

[0008] The hole-forming mold is in the shape of an inverted cone with a large upper end and a small lower end. This structure facilitates construction operations and is easy to disassemble and remove after pouring.

[0009] The hole sealing device includes an upper rotating handle, a water-stop screw, a lower rotating handle, and a load-bearing steel. When the floor slab is cast and the hole-forming mold, the tension screw, the upper pipe clamp, the lower pipe clamp, the upper support pipe, the lower support pipe, and the locking piece are removed, the water-stop screw replaces the position of the tension screw, that is, it passes through the middle part of the inner plate of the bottom template, the bottom of the water-stop screw extends out of the inner plate and is threadedly connected to the lower rotating handle, and the lower rotating handle forms a limit for the bottom surface of the inner plate, the top of the water-stop screw extends out of the top of the retained hole of the floor slab and is threadedly connected to the upper rotating handle, and the load-bearing steel is limited between the upper rotating handle and the top surface of the floor slab where the retained hole is located. When the upper rotating handle, the lower rotating handle and the water-stop screw are locked, the load-bearing steel and the inner plate of the bottom template are clamped at the upper and lower ends of the retained hole, that is, the inner plate forms a closure for the lower end of the retained hole. Through the above structure, the original bottom formwork can be used to effectively implement the blocking construction operation of the hole, without the need to set up a separate bottom formwork support for the hole, and the construction is more convenient and efficient.

[0010] The utility model adopts a combined fixed structure as a whole, and its disassembly and assembly are convenient and efficient, and each component can be repeatedly used, which effectively reduces the construction cost. It is suitable for use as a retention and blocking construction structure for various floor openings, or an improvement of similar structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the construction structure of the hole retention device.

[0012] Figure 2 yes Figure 1 The middle opening retention device retains the bottom template and removes other parts of the structure schematic diagram, and the inner plate of the bottom template is in an open state in the figure.

[0013] Figure 3 The utility model is a schematic diagram of the construction structure of the hole plugging device.

[0014] The serial numbers and names in the figure are: 1. Hole-forming mold, 2. Cross bar, 3. Tension screw, 4. Upper pipe clamp, 5. Lower pipe clamp, 6. Upper support pipe, 7. Lower support pipe, 8. Locking part, 9. Bottom template, 901. Outer frame plate, 902. Inner plate, 10. Embedded parts, 1001. Bolt parts, 1002. Anti-pull parts, 11. Hinge, 12. Rotating baffle, 13. Water-stop screw, 14. Load-bearing steel, 15. Upper rotating handle, 16. Lower rotating handle. Implementation

[0015] The utility model is now further described with reference to the accompanying drawings.

[0016] like Figure 1-Figure 3As shown, the temporary hole retention and plugging device of the floor slab includes a hole retention device and a hole plugging device. The hole retention device includes a hole forming mold 1, a tension screw 3, an upper pipe clamp 4, a lower pipe clamp 5, an upper support pipe 6, a lower support pipe 7, a locking piece 8, and a bottom template 9. The upper hole of the hole forming mold is provided with a cross bar 2. The bottom template includes an outer frame plate 901 and an inner plate 902 flipped open relative to the outer frame plate, that is, one side of the inner plate is hinged with the outer frame plate through a hinge 11 to flip. The lower hole of the hole forming mold is sealed against the plane of the inner plate. When the inner plate is opened relative to the outer frame plate, the lower hole of the hole forming mold is exposed. The tension screw passes through the middle of the inner plate, the top of the tension screw extends out of the upper hole of the hole-forming mold to connect the upper pipe clamp and the locking piece, the bottom of the tension screw extends out of the lower end face of the inner plate to connect the lower pipe clamp and the locking piece, an upper support tube is arranged between the upper pipe clamp and the upper hole of the hole-forming mold, and a lower support tube is arranged between the lower pipe clamp and the bottom surface of the inner plate. When the locking piece is locked with the tension screw, the upper pipe clamp and the lower pipe clamp clamp the upper support tube and the lower support tube, that is, the upper support tube and the lower support tube clamp the hole-forming mold and the bottom template and connect them as one. The upper plate surface of the outer frame plate of the above-mentioned bottom template is surrounded by an array of embedded parts 10 that are embedded and fixed with the floor slab when the floor slab is cast. The embedded parts include bolts 1001 and inverted cone-shaped anti-pullout parts 1002, that is, they are fixed to the outer frame plate by threaded locking of the bolts and the anti-pullout parts.

[0017] While a hinge 11 is provided between the inner plate 902 and the outer frame plate 901 of the above-mentioned bottom template 9, the outer frame plate of the bottom template can also be provided with a rotating baffle 12 for limiting the lower end surface of the inner plate, that is, when the inner plate is closed to be flush with the outer frame plate, the rotating baffle is rotated to limit the inner plate inside the outer frame plate, thereby facilitating effective temporary limiting when the inner plate is closed.

[0018] The above-mentioned hole sealing device includes an upper rotating handle 15, a water-stop screw 13, a lower rotating handle 16, and a load-bearing steel 14. When the floor slab is cast and the hole-forming mold 1, the tension screw 3, the upper pipe clamp 4, the lower pipe clamp 5, the upper support pipe 6, the lower support pipe 7, and the locking piece 8 are removed, the water-stop screw replaces the position of the tension screw, that is, the water-stop screw passes through the middle of the inner plate 902 of the bottom template 9, and the bottom of the water-stop screw extends out of the inner plate and is threadedly connected to the lower rotating handle, and the lower rotating handle forms a limit on the bottom surface of the inner plate; the top of the water-stop screw extends out of the top of the retained hole of the floor slab and is threadedly connected to the upper rotating handle, and a load-bearing steel is provided between the upper rotating handle and the top surface of the floor slab where the retained hole is located. When the upper rotating handle, the lower rotating handle and the water-stop screw are locked, the load-bearing steel and the inner plate of the bottom template are clamped at the upper and lower ends of the retained hole, that is, the inner plate forms a closure on the lower end of the retained hole. After closing, the opening can be sealed and poured to form a complete floor. Finally, the upper rotating handle, lower rotating handle, load-bearing steel, water-stop screws are removed, and the bolts of the embedded parts of the bottom template are removed to complete the removal of all components, which can be reused after removal.

[0019] The above contents are intended to illustrate the technical means of the utility model, but not to limit the technical scope of the utility model. Those skilled in the art can make obvious improvements or substitutions to the utility model in combination with existing common knowledge, which also fall within the protection scope of the claims of the utility model.

Claims

1. A temporary hole retention and blocking device for a floor slab, the device comprising a hole retention device and a hole blocking device, characterized in that The hole retaining device comprises a hole-forming mold (1), a tension screw (3), an upper tube clamp (4), a lower tube clamp (5), an upper support tube (6), a lower support tube (7), and a bottom template (9). The upper hole of the hole-forming mold is provided with a cross bar (2). The bottom template comprises an outer frame plate (901) and an inner plate (902) which is detachably opened relative to the outer frame plate. The lower hole of the hole-forming mold abuts against the upper plane of the inner plate in a sealed state. When the inner plate is opened or disassembled relative to the outer frame plate, the lower hole of the hole-forming mold is exposed. The tension screw passes through the middle of the inner plate. The top of the tension screw The upper hole of the hole-forming mold is extended out to connect with the upper pipe clamp and the locking piece (8), the bottom of the tension screw is extended out of the lower end surface of the inner plate to connect with the lower pipe clamp and the locking piece, an upper support tube is arranged between the upper pipe clamp and the upper hole of the hole-forming mold, and a lower support tube is arranged between the lower pipe clamp and the bottom surface of the inner plate. When the locking piece is locked with the tension screw, the upper pipe clamp and the lower pipe clamp clamp the upper support tube and the lower support tube, that is, the upper support tube and the lower support tube form a clamping limit for the hole-forming mold and the bottom template; the outer frame plate of the bottom template is connected with an embedded part (10) which is embedded and fixed with the floor slab when the floor slab is cast.

2. The temporary opening retaining and blocking device of the floor slab according to claim 1 is characterized in that The embedded part (10) comprises a bolt part (1001) and an inverted cone-shaped anti-pullout part (1002), and is fixed to the outer frame plate by thread-locking the bolt part and the anti-pullout part.

3. The temporary opening retaining and blocking device of the floor slab according to claim 1 is characterized in that One side of the inner plate (902) of the bottom template (9) is hinged to the outer frame plate (901) via a hinge (11) so as to be flippable.

4. The temporary opening retaining and blocking device of the floor slab according to claim 1 is characterized in that The outer frame plate (901) of the bottom template (9) is provided with a rotating stopper (12) for limiting the inner plate (902) within the outer frame plate.

5. The temporary opening retaining and blocking device of the floor slab according to claim 1 is characterized in that The hole forming die (1) is in the shape of an inverted cone with a large upper end and a small lower end.

6. The temporary opening retaining and blocking device of the floor slab according to claim 1 is characterized in that The hole plugging device comprises an upper rotating handle (15), a water-stopping screw (13), a lower rotating handle (16), and a load-bearing steel (14). When the floor slab is poured and the hole-forming mold (1), the tensioning screw (3), the upper pipe clamp (4), the lower pipe clamp (5), the upper support pipe (6), the lower support pipe (7), and the locking member (8) are removed, the water-stopping screw replaces the position of the tensioning screw, that is, passes through the middle of the inner plate (902) of the bottom template (9), and the bottom of the water-stopping screw protrudes The inner plate is threadedly connected to the lower rotating handle, and the lower rotating handle forms a limit for the bottom surface of the inner plate, the top of the water-stop screw extends out of the top of the retention hole of the floor slab and is threadedly connected to the upper rotating handle, and the load-bearing steel is limited between the upper rotating handle and the top surface of the floor slab where the retention hole is located. When the upper rotating handle, the lower rotating handle and the water-stop screw are locked, the load-bearing steel and the inner plate of the bottom template are clamped at the upper and lower ends of the retention hole, that is, the inner plate forms a closure for the lower end of the retention hole.

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