Shear wall screw hole plugging and sealing mechanism
Through the combination of airbag filling system and polyurethane foaming material, the complexity and leakage of shear wall screw hole sealing are solved, and a fast and simple sealing effect is achieved, reducing construction costs and leakage risks.
Patent Information
- Application Number
- CN202422748052.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In the prior art, the method of sealing the shear wall screw holes is complicated and not easy to be completely filled, resulting in leakage problems and affecting the building quality and service life.
An airbag filling system consisting of a sealing body and a cover plate is adopted. The filling airbag is expanded by an inflatable tube and sealed and filled with polyurethane-filled foaming material to adapt to screw holes of different sizes.
Fast and simple sealing filling is achieved, reducing construction complexity and multiple usage costs, ensuring complete sealing of screw holes and preventing leakage.
Smart Images

Figure CN223293386U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a shear wall screw hole blocking and sealing mechanism. Background Art
[0002] When pouring concrete for shear walls, numerous through-wall screws are used to secure the formwork and ensure the wall's precise shape and dimensions. Once the concrete reaches a certain strength and the formwork can be removed, these through-wall screws are removed, leaving behind screw holes. If these holes are not tightly sealed, they can become pathways for moisture to penetrate, increasing the likelihood of wall leakage, especially on exterior walls. These holes can also lead to dampness, mold, and other problems within the building, compromising its quality and service life.
[0003] At present, cement mortar, expansive cement mortar, etc. are mostly used to seal screw holes. The use of these materials for sealing requires multiple steps and the coordination of multiple materials. The construction process is relatively complicated. Uneven mixing and incomplete filling are prone to occur during the construction process. For some larger screw holes, conventional sealing methods may not be able to completely fill them, resulting in leakage and other problems in the later stage.
[0004] Therefore, a shear wall screw hole sealing mechanism is needed to improve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a shear wall screw hole plugging and sealing mechanism to solve the problems raised in the above background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A shear wall screw hole plugging and sealing mechanism includes a plugging body and a sealing cover plate that cooperates with both ends of the plugging body, the plugging body includes an inner support member, the outside of the inner support member is fixedly connected to a filling airbag, an inflation tube is provided inside the inner support member, one end of the inflation tube is provided with an extension end, the extension end passes through the inner support member and is connected to the inside of the filling airbag, the filling airbag is inflated through the inflation tube to expand it to fill the screw hole, and a sealing filling layer is also provided on the outside of the filling airbag, and the gap between the filling airbag and the screw hole is sealed and filled by the sealing filling layer.
[0008] As a preferred solution of the present invention, the sealing filling layer is formed by foaming a polyurethane filling foam material.
[0009] As a preferred solution of the present invention, the inner support member includes an inner tube body, and a number of connecting strips are fixedly connected to the outer side of the inner tube body at equal intervals, and the end of each connecting strip is fixedly connected to an arc-shaped plate, and fixed plates are provided on both sides of each connecting strip, and a connecting member is fixedly connected between one side of each fixed plate and the inner side of the filling airbag.
[0010] As a preferred solution of the present invention, the inflation tube is arranged inside the inner tube body, and one end of the inflation tube extends to the end of the inner tube body and remains flush with it, and the end of the inner tube body is provided with a threaded groove.
[0011] As a preferred solution of the present invention, the covering plate includes a covering, and the middle part of the inner side of the covering is fixedly connected with a threaded connection end that is screwed together with the threaded groove, and the middle part of the side of the threaded connection end is fixedly connected with a sealing end, and the sealing end abuts against the end of the inflation tube to maintain the sealing of the end of the inflation tube.
[0012] As a preferred solution of the present invention, an inner hole is opened in the middle of the outer side of the cover, and the interior of the inner hole is filled with rubber blocks.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The utility model adopts the airbag filling method as a whole, which can be filled quickly and has low requirements for construction technology. After the airbag is expanded, polyurethane filling foam material is appropriately injected to fill the fine gap. The overall operation is simple, and the airbag can be inflated and adjusted according to the size of the screw hole to ensure that the interior of the airbag is completely filled;
[0015] 2. The utility model can be applied to temporary or multiple filling, and can be recycled, thus reducing the cost of temporary filling and multiple filling. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the assembly of the utility model;
[0017] Figure 2 It is a partially expanded schematic diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the end structure of the utility model;
[0019] Figure 4 It is a three-dimensional schematic diagram of the main cross-sectional structure of the utility model;
[0020] Figure 5 It is a side cross-sectional structural schematic diagram of the utility model;
[0021] Figure 6 For this utility model Figure 4 Enlarged view of point A in the middle;
[0022] Figure 7 It is a main cross-sectional view of the present utility model.
[0023] In the figure: blocking body 1, sealing cover 2, filling airbag 3, sealing filling layer 4, inflation tube 5, threaded connection end 6, sealing end 7, threaded groove 8, inner hole 9, inner tube body 10, connecting strip 11, arc-shaped plate 12, connecting piece 13, extension end 14. DETAILED DESCRIPTION
[0024] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0025] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to related disclosures. Several embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.
[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] See also Figure 1-7 , the utility model provides a technical solution:
[0029] For example, please refer to Figure 1-7A shear wall screw hole plugging and sealing mechanism includes a plugging body 1 and a sealing cover plate that cooperates with both ends of the plugging body 1. The plugging body 1 includes an inner support member, and a filling airbag 3 is fixedly connected to the outside of the inner support member. An inflation tube 5 is provided inside the inner support member, and an extension end 14 is provided at one end of the inflation tube 5. The extension end 14 passes through the inner support member and is connected to the inside of the filling airbag 3. The filling airbag 3 is inflated through the inflation tube 5 to expand it to fill the screw hole. A sealing filling layer 4 is also provided on the outside of the filling airbag 3. The gap between the filling airbag 3 and the screw hole is sealed and filled by the sealing filling layer 4. The sealing filling layer 4 is formed by foaming a polyurethane filling foam material.
[0030] The filling airbag 3 can be conveniently inflated through the inflation tube 5. The inflation can be carried out according to the internal size of the screw hole to meet the filling needs of screw holes of different sizes. After the airbag is filled, the existing small gaps are filled by injecting polyurethane filling foam material to ensure the sealing of the overall filling. The end is sealed with a covering plate to maintain the overall sealing. The use of the filling airbag 3 has lower requirements for the construction process and does not require the use of multiple materials to match, thereby ensuring the uniformity of the overall filling.
[0031] Please refer to Figure 5 、 6 and 7, the inner support member includes an inner tube body 10, a plurality of connecting strips 11 are fixedly connected to the outer side of the inner tube body 10 at equal intervals, and the end of each connecting strip 11 is fixedly connected to an arc-shaped plate 12, and fixed plates are provided on both sides of each connecting strip 11, and a connector 13 is fixedly connected between one side of each fixed plate and the inner side of the filling airbag 3, the inflation tube 5 is arranged inside the inner tube body 10, and one end of the inflation tube 5 extends to the end of the inner tube body 10 and remains flush with it, and a threaded groove 8 is provided at the end of the inner tube body 10.
[0032] Please refer to Figure 1 、 2 , 3 and 5, the covering plate includes a covering 2, a threaded connection end 6 which is screwed together with the thread groove 8 and is fixedly connected to the middle of the inner side of the covering 2, and a sealing end 7 is fixedly connected to the middle of the side of the threaded connection end 6, the sealing end 7 abuts against the end of the inflation tube 5 to maintain the sealing of the end of the inflation tube 5, an inner hole 9 is opened in the middle of the outer side of the covering 2, and the interior of the inner hole 9 is filled with rubber blocks.
[0033] The cover 2 is screwed together with the threaded connection end 6 and the threaded groove 8. At the same time, the sealing end abuts and seals the end of the inflation tube 5. The setting of the inner hole 9 can facilitate the subsequent disassembly of the cover 2.
[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shear wall screw hole plugging and sealing mechanism, comprising a plugging body (1) and a sealing cover plate mated with both ends of the plugging body (1), characterized in that: The blocking body (1) comprises an inner support member, the outer portion of the inner support member is fixedly connected to a filling airbag (3), an inflation tube (5) is provided inside the inner support member, one end of the inflation tube (5) is provided with an extension end (14), the extension end (14) passes through the inner support member and is connected to the inner portion of the filling airbag (3), the filling airbag (3) is inflated through the inflation tube (5) to expand and fill the screw hole, and a sealing filling layer (4) is further provided on the outer side of the filling airbag (3), and the gap between the filling airbag (3) and the screw hole is sealed and filled through the sealing filling layer (4).
2. The shear wall screw hole sealing mechanism according to claim 1, characterized in that: The sealing filling layer (4) is formed by foaming a polyurethane filling foam material.
3. The shear wall screw hole sealing mechanism according to claim 1 or 2, characterized in that: The inner support member comprises an inner tube body (10), the outer side of the inner tube body (10) is fixedly connected with a plurality of connecting strips (11) at equal intervals, and the end of each connecting strip (11) is fixedly connected with an arc-shaped plate (12), and both sides of each connecting strip (11) are provided with fixed plates, and a connecting member (13) is fixedly connected between one side of each fixed plate and the inner side of the filling airbag (3).
4. The shear wall screw hole sealing mechanism according to claim 3, characterized in that: The inflation tube (5) is arranged inside the inner tube body (10), and one end of the inflation tube (5) extends to the end of the inner tube body (10) and remains flush with it. The end of the inner tube body (10) is provided with a thread groove (8).
5. The shear wall screw hole sealing mechanism according to claim 4, characterized in that: The sealing plate comprises a sealing cover (2), wherein a threaded connection end (6) that is screwed in cooperation with a threaded groove (8) is fixedly connected to the middle of the inner side of the sealing cover (2), and a sealing end (7) is fixedly connected to the middle of the side of the threaded connection end (6), and the sealing end (7) abuts against the end of the inflation tube (5) to maintain the sealing of the end of the inflation tube (5).
6. The shear wall screw hole sealing mechanism according to claim 5, characterized in that: An inner hole (9) is provided in the middle of the outer side of the sealing cover (2), and the interior of the inner hole (9) is filled with rubber blocks.