Door sealing opening anti-cracking structure
By connecting the old and new walls with structures such as rebar and reinforcement plates, the problems of cracking and aesthetics after the door openings were sealed were solved, and the overall solidity and aesthetics of the walls were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TIMES LINKAGE INVESTMENT CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, door opening sealing structures are prone to cracking when subjected to external loads or temperature changes, and the repaired wall surface shows color differences, resulting in poor aesthetics.
The new and old walls are connected by rebar anchoring, combined with reinforcement plates, inner and outer strengthening layers and decorative layers. The double connection improves the wall strength, reduces stress and prevents cracks. Fiberglass mesh and foam adhesive are used to enhance the connection, and multiple decorative layers are used to improve the aesthetics.
It effectively prevents wall cracking, improves connection strength and aesthetics, reduces maintenance costs, and ensures the overall solidity and beauty of the wall.
Smart Images
Figure CN224259954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and more specifically, to a crack-resistant structure for sealing door openings. Background Technology
[0002] During house renovations, doorways are often sealed off to create a complete wall surface, allowing for interior modifications. Current techniques typically involve laying bricks or pouring concrete at the doorway, followed by plastering and puttying to level the surface.
[0003] However, the aforementioned sealing structures still have drawbacks. Brick-built sealing structures have poor strength and cannot provide a firm connection between the old and new walls, leading to cracks easily appearing around the sealed doorway. Concrete walls, under external loads or temperature changes, develop internal stress. When this stress exceeds the material's bearing capacity, cracks easily form. Furthermore, since cracks severely affect the wall's appearance, latex paint is often used to repair them. However, this often results in color variations and poor aesthetics. Utility Model Content
[0004] The purpose of this utility model is to provide a crack-resistant structure for sealing door openings, which can improve the connection strength between new and old walls, prevent wall cracking, and enhance the aesthetics of the wall.
[0005] This utility model is achieved through the following technical solution:
[0006] A crack-resistant structure for sealing door openings includes a new wall and an old wall. Several reinforcing bars are installed between the new wall and the old wall, with one end of each reinforcing bar inserted into the new wall and the other end inserted into the old wall. Reinforcing plates are symmetrically arranged on both sides of the new wall, and the reinforcing plates are connected by a first connector and a second connector. An inner reinforcing layer and an outer reinforcing layer are respectively provided on the inner and outer sides of the reinforcing plates.
[0007] Furthermore, the reinforcing plate is located at the upper, middle and lower parts of the new wall, and the length of the reinforcing plate is greater than the length of the new wall.
[0008] Furthermore, the first connector is an angle steel, with one right-angled side of the angle steel passing through the old wall and the other right-angled side of the angle steel passing through the new wall.
[0009] Furthermore, the second connector is a connecting bolt, which is respectively installed on the new wall and the old wall.
[0010] Furthermore, a decorative layer is provided on the outer side of the outer reinforcing layer, which includes, from the inside out, a putty layer, a mortar layer, a lime base layer, and a latex paint layer.
[0011] Furthermore, both the inner reinforcing layer and the outer reinforcing layer are fiberglass meshes. The fiberglass meshes are located on the outside of the new wall and extend to the old wall around their perimeter. The extension length of the fiberglass meshes is 30cm.
[0012] Furthermore, a gap with a width of 2mm is provided between the new wall and the old wall, and the gap is filled with foam adhesive.
[0013] Furthermore, the reinforcing bars are horizontally arranged and evenly distributed along the height direction of the new wall.
[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:
[0015] In this invention, rebar anchors connect the interior of the new wall and the old wall, while reinforcing plates connect the exterior. This dual connection enhances the strength of the connection between the new and old walls, improving the overall wall's stability and preventing cracking at the joint. The reinforcing plates reduce internal wall stress, preventing cracks caused by excessive stress. The inner and outer reinforcing layers prevent wall shrinkage, thus preventing cracks. The combined use of the reinforcing plates, inner and outer reinforcing layers significantly improves the wall's crack resistance, preventing cracking and ensuring aesthetic appeal. It also reduces future maintenance costs, saving manpower and financial resources. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the anti-cracking structure for sealing door openings provided in Embodiment 1 of this utility model;
[0018] Figure 2 This is a cross-sectional view of the anti-cracking structure for sealing door openings provided in Embodiment 1 of this utility model;
[0019] Figure 3 Another cross-sectional view of the anti-cracking structure for sealing door openings provided in Embodiment 1 of this utility model;
[0020] Figure 4This is a schematic diagram of the structure of the decorative layer provided in Embodiment 1 of this utility model.
[0021] Icons: 1-Old wall, 2-New wall, 3-Reinforcement board, 4-First connector, 5-Second connector, 6-Foam adhesive, 7-Rebar installation, 8-Inner reinforcement layer, 9-Outer reinforcement layer, 10-Decorative layer, 11-Putty layer, 12-Mortar layer, 13-White lime base layer, 14-Latex paint layer. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, 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, and therefore should not be construed as a limitation of this utility model.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example 1
[0028] like Figures 1-4 As shown, this embodiment provides a crack-resistant structure for sealing door openings, including a new wall 2 and an old wall 1. A plurality of reinforcing bars 7 are provided between the new wall 2 and the old wall 1. One end of the reinforcing bar 7 is inserted into the new wall 2, and the other end of the reinforcing bar 7 is inserted into the old wall 1. Reinforcing plates 3 are symmetrically arranged on both sides of the new wall 2. The reinforcing plates 3 are connected to each other by a first connector 4 and a second connector 5. An inner reinforcing layer 8 and an outer reinforcing layer 9 are respectively provided on the inner and outer sides of the reinforcing plates 3.
[0029] The rebar 7 connects the interior of the new wall 2 and the old wall 1, while the reinforcing plate 3 connects the exterior of the new wall 2 and the old wall 1. This double connection improves the connection strength between the new wall 2 and the old wall 1, enhancing the overall wall's stability and preventing cracking at the joint. The reinforcing plate 3 reduces internal wall stress, preventing cracks caused by excessive stress. The inner reinforcing layer 8 and the outer reinforcing layer 9 prevent wall shrinkage, thus preventing cracks caused by shrinkage. The combination of the reinforcing plate 3, the inner reinforcing layer 8, and the outer reinforcing layer 9 significantly improves the wall's crack resistance, prevents cracking, ensures the wall's aesthetics, and reduces future maintenance costs, saving manpower and financial resources.
[0030] In this specific embodiment, the reinforcing plate 3 is located at the upper, middle, and lower parts of the new wall 2, and the length of the reinforcing plate 3 is greater than the length of the new wall 2. The reinforcing plate 3 connects and reinforces the new wall 2 and the old wall 1 in sections, which not only improves the connection strength between the new wall 2 and the old wall 1, but also reduces the internal stress of the new wall 2, preventing cracks caused by excessive stress.
[0031] In this specific embodiment, the first connector 4 is an angle steel. One right-angled side of the angle steel passes through the old wall 1, and the other right-angled side passes through the new wall 2. The angle steel can fix the reinforcing plates 3 on both sides, and can also reinforce the contact point between the new wall 2 and the old wall 1, further improving the connection strength between the two.
[0032] In this specific embodiment, the second connecting member 5 is a connecting bolt, which is respectively installed on the new wall 2 and the old wall 1. The connecting bolt and angle steel can reinforce the multiple connections and fixation of the plate 3, the new wall 2 and the old wall 1, thereby improving the overall wall structure's robustness.
[0033] In a specific embodiment of this invention, a decorative layer 10 is provided on the outer side of the outer reinforcing layer 9. The decorative layer 10 includes, from the inside out, a putty layer 11, a mortar layer 12, a lime base layer 13, and a latex paint layer 14. The combination of multiple layers in the decorative layer 10 can enhance the protective effect on the new wall 2 and the old wall 1.
[0034] In this specific embodiment, both the inner reinforcing layer 8 and the outer reinforcing layer 9 are fiberglass meshes. The fiberglass mesh is located on the outside of the new wall 2, and extends to the old wall 1 on all four sides. The extension length of the fiberglass mesh is 30cm. The extension of the fiberglass mesh to the old wall 1 enables the connection between the new wall 2 and the old wall 1, making the connection between the two more secure.
[0035] In this specific embodiment, a gap with a width of 2mm is provided between the new wall 2 and the old wall 1, and the gap is filled with foam adhesive 6. Utilizing the adhesive ability of the foam adhesive 6, the joint between the new wall 2 and the old wall 1 can be connected as a whole, improving the strength of the joint.
[0036] In a specific embodiment of this example, the reinforcing bars 7 are arranged horizontally and are evenly distributed along the height direction of the new wall 2.
[0037] When sealing the doorway, insert the rebar 7 into the old wall 1, and then build a new wall 2 at the doorway. Leave a 2mm gap between the new wall 2 and the old wall 1, and fill the gap with foam glue 6. After filling, perform surface curing. Water the wall every 12 hours for a total of two curing sessions to ensure that the new wall is thoroughly soaked in water.
[0038] After curing, water once. Then, lay fiberglass mesh on both sides of the new wall 2, extending 30cm beyond the old wall 1. Apply plaster. Water again the day after completing the above steps; this curing only needs to be done once. Next, install reinforcement plates 3 on the upper, middle, and lower parts of the new wall 2. Use angle steel and connecting bolts to fix the reinforcement plates 3 to the new wall 2 and the old wall 1. Level the reinforcement plates 3 on the same side with putty powder, then water. Lay fiberglass mesh on the outside of the reinforcement plates 3 as described above, then lay putty layer 11, mortar layer 12, lime base layer 13, and latex paint layer 14. Following this construction process can prevent 98% of wall cracking problems.
[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A crack-resistant structure for sealing door openings, characterized in that: The wall includes a new wall and an old wall, with several reinforcing bars installed between the new wall and the old wall. One end of each reinforcing bar is inserted into the new wall and the other end is inserted into the old wall. Reinforcing plates are symmetrically arranged on both sides of the new wall, and the reinforcing plates are connected by a first connector and a second connector. An inner reinforcing layer and an outer reinforcing layer are respectively provided on the inner and outer sides of the reinforcing plates.
2. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, The reinforcing plate is located at the top, middle and bottom of the new wall, and the length of the reinforcing plate is greater than the length of the new wall.
3. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, The first connector is an angle steel, with one right-angled side of the angle steel passing through the old wall and the other right-angled side of the angle steel passing through the new wall.
4. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, The second connector is a connecting bolt, which is respectively installed on the new wall and the old wall.
5. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, A decorative layer is provided on the outside of the outer reinforcing layer. The decorative layer includes, from the inside out, a putty layer, a mortar layer, a lime base layer, and a latex paint layer.
6. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, Both the inner reinforcing layer and the outer reinforcing layer are fiberglass meshes. The fiberglass meshes are located on the outside of the new wall and extend to the old wall around their perimeter. The extension length of the fiberglass meshes is 30cm.
7. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, A gap with a width of 2mm is provided between the new wall and the old wall, and the gap is filled with foam adhesive.
8. The anti-cracking structure for sealing door openings according to claim 1, characterized in that, The reinforcing bars are installed horizontally and are evenly distributed along the height of the new wall.