Post-pouring hole sealing structure and post-pouring hole plugging structure

Abstract

The utility model provides a post-pouring hole sealing structure and a post-pouring hole plugging structure. The post-pouring hole sealing structure comprises a formwork air bag, a stiffening pipe and a fixing mechanism, the stiffening pipe is arranged in a post-pouring hole in a penetrating mode and fixed to the side wall of the post-pouring hole through the fixing mechanism, an air inlet connector is arranged at the upper end of the formwork air bag, a butt joint connector used for being in butt joint with a rotating component is arranged at the lower end of the formwork air bag, and the rotating component is used for rotationally disassembling the formwork air bag. The air inlet connector is in threaded connection with the bottom end of the stiffening pipe, the air inlet connector is provided with a one-way valve allowing air to enter the formwork air bag, and the top end of the stiffening pipe is arranged to be a connecting end used for being connected with external air supply equipment. The post-pouring hole blocking structure comprises the post-pouring hole sealing structure, the template air bag is filled with gas and blocks the lower port of the post-pouring hole, and the post-pouring hole is filled with filler. The post-pouring hole sealing structure and the post-pouring hole plugging structure are good in sealing performance, not prone to slurry leakage, convenient to disassemble and capable of being repeatedly used, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a post-pouring hole sealing structure and a post-pouring hole plugging structure. Background Technology

[0002] With the deepening of urbanization, multi-story municipal public works buildings are becoming increasingly common. During construction, it is generally necessary to reserve pouring holes for later use, which then need to be sealed. Current construction methods for sealing these holes typically involve either setting a formwork at the bottom of the hole before pouring concrete, or setting a steel plate of the same size as the hole as a bottom formwork, secured with reinforcing bars. For example, in application number 202411331088.5, the formwork reinforcement structure and construction method for pouring holes in building construction involves sealing the bottom of the hole with a formwork suspended on a rod, which is supported by a support rod at the top of the hole. However, existing formwork for pouring holes has the following shortcomings:

[0003] 1) The formwork is suspended at the bottom of the post-cast hole, resulting in poor sealing between the formwork and the bottom of the post-cast hole, which easily leads to grout leakage;

[0004] 2) The formwork is not easy to disassemble and reuse after construction, resulting in high costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a post-pouring hole sealing structure and a post-pouring hole plugging structure that has good sealing performance, is not easy to leak grout, is easy to disassemble, can be reused, and reduces costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A post-cast hole sealing structure includes a template airbag, a stiffening tube, and a fixing mechanism. The stiffening tube passes through the post-cast hole and is fixed to the side wall of the post-cast hole by the fixing mechanism. The template airbag has an air inlet connector at its upper end and a docking connector at its lower end for docking with a rotating component. The rotating component is used to rotate and disassemble the template airbag. The air inlet connector is threaded to the bottom end of the stiffening tube. The air inlet connector is provided with a one-way valve for supplying gas into the template airbag. The top end of the stiffening tube is provided as a connection end for connecting with an external gas supply device.

[0008] As a further improvement to the above technical solution:

[0009] The stiffening tube has a grout inlet on its side wall. The stiffening tube has a stop plate inside the grout inlet. The top of the stop plate is connected to the stiffening tube and can rotate around the connection point. It is used to allow concrete grout to enter and prevent gas from escaping.

[0010] The stop plate is made of galvanized iron sheet.

[0011] The one-way valve includes a check plate and a self-closing flap. The one-way valve is located inside the template airbag, and one end of the check plate is connected to the air inlet connector through the self-closing flap. The check plate blocks the air outlet of the air inlet connector under the elastic force of the self-closing flap.

[0012] The reinforcing tube is provided with a water-stop wing plate on its outer periphery.

[0013] The fixing mechanism includes a fixing rib, which is pre-embedded in the side wall of the post-cast hole and welded to the reinforcing pipe.

[0014] The reinforcing tube is equipped with a filter screen.

[0015] The mating joint is provided with a mating part for threaded connection or splined connection with rotating parts.

[0016] A post-cast hole sealing structure includes the above-mentioned post-cast hole sealing structure, wherein the template airbag is filled with gas and seals the lower port of the post-cast hole, and the post-cast hole is filled with a filler.

[0017] As a further improvement to the above technical solution:

[0018] The filler includes shrinkage-compensating concrete, polymer waterproof mortar, and waterproof coating. The shrinkage-compensating concrete is filled into the post-cast hole, the polymer waterproof mortar is filled at the top of the post-cast hole and located on the shrinkage-compensating concrete, and the waterproof coating is applied to the upper surface of the polymer waterproof mortar.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] The post-pouring hole sealing structure of this utility model has a stiffening tube that connects to an external air supply device. Air can be injected into the template airbag through the stiffening tube, causing the template airbag to seal the lower end of the post-pouring hole. Compared with the existing method of using a rigid template suspended by a hanger to seal the lower end of the post-pouring hole, this structure offers better sealing and reduces the risk of grout leakage. Furthermore, the template airbag is connected to the stiffening tube via an air inlet connector and has a butt joint at the bottom. By rotating the template airbag through the butt joint, it can be removed by rotating the rotating component, thus facilitating reuse and reducing costs.

[0021] The post-cast hole sealing structure of this utility model includes a post-cast hole sealing structure, which has all the advantages of a post-cast hole sealing structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the post-cast hole sealing structure of this utility model.

[0023] Figure 2 yes Figure 1A magnified structural diagram of point A in the middle.

[0024] Figure 3 This is a schematic diagram of the main structure of the reinforcing tube of the post-cast hole sealing structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the main cross-section of the reinforcing tube of the post-cast hole sealing structure of this utility model.

[0026] Figure 5 This is a diagram showing the dismantling state of the template airbag in the post-pouring hole sealing structure of this utility model.

[0027] Figure 6 This is a schematic diagram of the post-pouring hole sealing structure of this utility model.

[0028] The labels in the diagram represent:

[0029] 1. Formwork airbag; 2. Reinforcing tube; 21. Grout inlet; 22. Exit stop plate; 23. Waterstop wing plate; 3. Fixing mechanism; 31. Fixing rib; 4. Post-pouring hole; 5. Air inlet connector; 6. Butt joint; 61. Butt joint; 7. Rotating component; 8. One-way valve; 81. Check plate; 82. Self-closing hinge; 9. Filler; 91. Shrinkage compensating concrete; 92. Polymer waterproof mortar; 93. Waterproof coating. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example 1:

[0035] Figures 1 to 5 This invention illustrates an embodiment of the post-cast hole sealing structure. The post-cast hole sealing structure of this embodiment includes a template airbag 1, a stiffening tube 2, and a fixing mechanism 3. The stiffening tube 2 passes through the post-cast hole 4 and is fixed to the side wall of the post-cast hole 4 by the fixing mechanism 3. The upper end of the template airbag 1 is provided with an air inlet connector 5, and the lower end is provided with a docking connector 6 for docking with a rotating component 7. The rotating component 7 is used to rotate and disassemble the template airbag 1. The air inlet connector 5 is threadedly connected to the bottom end of the stiffening tube 2. The air inlet connector 5 is provided with a one-way valve 8 for supplying gas into the template airbag 1. The top end of the stiffening tube 2 is provided as a connection end for connecting with an external gas supply device.

[0036] In this post-pouring hole sealing structure, the connecting end of the stiffening tube 2 is connected to an external air supply device, which allows air to be injected into the template airbag 1 through the stiffening tube 2, so that the template airbag 1 seals the lower port of the post-pouring hole 4. Compared with the existing method of using rigid templates suspended by hangers to seal the lower port of the post-pouring hole, this structure offers better sealing and reduces the risk of grout leakage. Furthermore, the template airbag 1 is threadedly connected to the stiffening tube 2 through the air inlet connector 5, and a butt joint 6 is provided at the bottom. Thus, by connecting the rotating component 7 to the butt joint 6, the template airbag 1 can be rotated and removed, facilitating reuse and reducing costs.

[0037] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, a grout inlet 21 is provided on the side wall of the stiffening tube 2. A stop plate 22 is provided inside the grout inlet 21 of the stiffening tube 2. The top of the stop plate 22 is connected to the stiffening tube 2 and can rotate around the connection point, used to allow concrete grout to enter and prevent gas from escaping. When the stiffening tube 2 supplies air to the formwork airbag 1, the airflow flows from top to bottom, pushing the stop plate 22 to press against the inside of the stiffening tube 2 to seal the grout inlet 21 and prevent gas from escaping through the grout inlet 21. When grouting is performed in the post-pouring hole 4, the concrete grout pushes the stop plate 22 from the outside in, thus opening the stop plate 22 and flowing into the stiffening tube 2, thereby filling the inside of the stiffening tube 2 and improving the tightness and strength of the subsequent overall sealing.

[0038] Furthermore, in this embodiment, the stop plate 22 is a sheet metal plate. Of course, in other embodiments, it can also be a plastic plate, with its top end attached to the inner wall of the reinforcing tube 2.

[0039] Furthermore, such as Figure 2 As shown, in this embodiment, the one-way valve 8 includes a check plate 81 and a self-closing flap 82. The one-way valve 8 is located inside the template airbag 1, and one end of the check plate 81 is connected to the air inlet connector 5 through the self-closing flap 82. The check plate 81 blocks the air outlet of the air inlet connector 5 under the elastic force of the self-closing flap 82. Under the action of the airflow from top to bottom through the stiffening tube 2, the check plate 81 can overcome the elastic force of the self-closing flap 82 and open, allowing gas to enter the template airbag 1. In this embodiment, the self-closing flap 82 is a commercially available component. Of course, in other embodiments, the one-way valve 8 can also use existing components with a one-way fluid flow function and can be installed inside the stiffening tube 2.

[0040] Furthermore, in this embodiment, a water-stop wing plate 23 is provided on the outer periphery of the stiffening tube 2 to improve the water-stopping ability after subsequent sealing.

[0041] Furthermore, such as Figure 1 As shown, in this embodiment, the fixing mechanism 3 includes a fixing rib 31, which is pre-embedded in the side wall of the post-cast hole 4 and welded to the reinforcing pipe 2. The fixing rib 31 is welded to the reinforcing steel bar in the side wall of the post-cast hole 4 to improve the strength after subsequent hole plugging.

[0042] Furthermore, in this embodiment, a filter screen is provided inside the stiffening tube 2 to prevent debris from entering the template airbag 1.

[0043] Furthermore, in this embodiment, the mating joint 6 is provided with a mating portion 61 for threaded connection or splined connection with the rotating component 7. The mating portion 61 is provided with external threads or is a polygonal column, which facilitates the rotational connection or axial docking of the rotating component 7. After the rotating component 7 docks with the mating portion 61, it can rotate with the template airbag 1 to remove the template airbag 1. The rotating component 7 can be a long rod component with internal threads or a polygonal hole at the top.

[0044] Example 2:

[0045] Figure 6 This illustration shows one embodiment of the post-gating hole sealing structure of the present invention. This embodiment includes the post-gating hole sealing structure of Embodiment 1. The template airbag 1 is filled with gas and seals the lower end of the post-gating hole 4. The post-gating hole 4 is filled with filler material 9. This post-gating hole sealing structure possesses all the advantages of a post-gating hole sealing structure.

[0046] Furthermore, in this embodiment, the filler 9 includes shrinkage-compensating concrete 91, polymer waterproof mortar 92, and waterproof coating 93. The shrinkage-compensating concrete 91 is filled into the post-pouring hole 4, the polymer waterproof mortar 92 is filled at the top of the post-pouring hole 4 and located on the shrinkage-compensating concrete 91, and the waterproof coating 93 is disposed on the upper surface of the polymer waterproof mortar 92.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A post-pour hole seal structure, characterized by: The structure comprises a template air bag (1), a stiffening pipe (2) and a fixing mechanism (3), the stiffening pipe (2) is arranged in the post-cast hole (4) and is fixed on the side wall of the post-cast hole (4) through the fixing mechanism (3), the upper end of the template air bag (1) is provided with an air inlet joint (5), the lower end is provided with a butt joint (6) for butt joint with a rotating part (7), the rotating part (7) is used for rotating and dismounting the template air bag (1), the air inlet joint (5) is threadedly connected with the bottom end of the stiffening pipe (2), the air inlet joint (5) is provided with a one-way valve (8) for air entering the template air bag (1), and the top end of the stiffening pipe (2) is provided as a connecting end for connecting with an external air supply device.

2. The post-pour hole sealing structure according to claim 1, wherein: The side wall of the stiffening pipe (2) is provided with a slurry inlet (21), the inner side of the stiffening pipe (2) is provided with a stop plate (22), the top end of the stop plate (22) is connected with the stiffening pipe (2) and can rotate around the connection, and the stop plate (22) is used for entering the concrete slurry and preventing gas from being discharged.

3. The post-pour hole sealing structure according to claim 2, wherein: The stop plate (22) is a tinfoil plate.

4. The post-pour hole sealing structure of claim 1, wherein: The one-way valve (8) comprises a check plate (81) and a self-closing leaf (82), the one-way valve (8) is located in the template air bag (1), one end of the check plate (81) is connected with the air inlet joint (5) through the self-closing leaf (82), and the check plate (81) blocks the gas outlet of the air inlet joint (5) under the elastic force of the self-closing leaf (82).

5. The post-pour hole sealing structure of claim 1, wherein: The outer circumferential side of the stiffening pipe (2) is provided with a water stop wing plate (23).

6. The post-pour hole closure structure according to any one of claims 1 to 5, wherein: The fixing mechanism (3) comprises a fixing rib (31), the fixing rib (31) is pre-buried in the side wall of the post-cast hole (4) and is welded with the stiffening pipe (2).

7. The post-pour hole closure structure according to any one of claims 1 to 5, wherein: The stiffening pipe (2) is provided with a filter screen.

8. The post-pour hole closure structure according to any one of claims 1 to 5, wherein: The butt joint (6) is provided with a butt joint part (61) for threadedly connecting with the rotating part (7) or spline sleeve connection.

9. A post-pour hole plugging structure, characterized by: The structure comprises the post-cast hole sealing structure in any one of claims 1 to 8, the template air bag (1) is filled with gas and is blocked at the lower end of the post-cast hole (4), and the post-cast hole (4) is filled with a filler (9).

10. The post-pour hole plugging structure of claim 9, wherein: The filler (9) comprises compensation shrinkage concrete (91), polymer waterproof mortar (92) and waterproof paint (93), the compensation shrinkage concrete (91) is filled in the post-cast hole (4), the polymer waterproof mortar (92) is filled at the top of the post-cast hole (4) and is located on the compensation shrinkage concrete (91), and the waterproof paint (93) is arranged on the upper surface of the polymer waterproof mortar (92).

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