A wall insulation and reinforcement mechanism

By using extruded polystyrene insulation boards connected by cement boards and shape memory polyurethane sealing strips on building walls, combined with polyurethane foaming agents and composite protective structures, the problem of insulation board cracking caused by thermal expansion and contraction is solved, achieving crack prevention of the insulation layer and improved structural stability.

CN224451926UActive Publication Date: 2026-07-03ANHUI YANGFANYUANHANG WATERPROOF & INSULATION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI YANGFANYUANHANG WATERPROOF & INSULATION ENGINEERING CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In environments with large temperature differences between day and night, insulation boards may crack due to thermal expansion and contraction, leading to reduced sealing and affecting the insulation effect and structural stability of building walls.

Method used

The extruded polystyrene insulation board, which is connected to cement board and anchoring components, combined with shape memory polyurethane sealing strips and polyurethane foam, provides space for thermal expansion and contraction. The composite protective structure, consisting of a frame, hot-dip galvanized steel wire mesh, and pulp honeycomb core, disperses and absorbs external forces to prevent cracking.

Benefits of technology

It effectively prevents the insulation board from cracking due to temperature changes, maintains airtightness, enhances structural stability, improves insulation performance, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224451926U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of building facade reinforcement technology and discloses a wall insulation reinforcement mechanism. The mechanism includes a cement board with a cement adhesive for connection to the building wall on one side. An anti-deformation mechanism is also provided on one side of the cement board via an anchoring component. The anti-deformation mechanism includes two sets of extruded polystyrene (XPS) insulation boards on one side of the cement board. The XPS insulation boards have installation grooves on their outer sides, with trapezoidal cross-sections. After installing the two sets of XPS insulation boards, a polyurethane foaming agent is sprayed to fill and seal the joints. When temperature changes cause thermal expansion and contraction of the XPS insulation boards and shape memory polyurethane sealing strips, the deformation cavity within the shape memory polyurethane sealing strip provides buffering, preventing rigid compression cracking. The polyurethane foaming agent can slightly expand and contract to maintain the seal, solving the problem of joint cracking caused by temperature deformation of the insulation board.
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Description

Technical Field

[0001] This utility model relates to the field of building facade reinforcement technology, specifically a wall insulation reinforcement mechanism. Background Technology

[0002] Over time or due to environmental factors, the thermal insulation performance of building walls declines, threatening structural stability. Therefore, it is necessary to use wall insulation reinforcement mechanisms in the reinforcement of building facades to enhance wall insulation, improve living comfort, and extend the service life of buildings.

[0003] In environments with large temperature differences between day and night, insulation boards will experience problems due to thermal expansion and contraction. When the temperature rises, the insulation boards expand, creating stress by pressing against each other, which causes cracks to appear at the edges of the boards. When the temperature drops, the insulation boards shrink, widening the gaps between the boards and compressing the insulation layer. Therefore, there is an urgent need to develop a wall insulation reinforcement mechanism to solve these practical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wall insulation reinforcement mechanism that solves the problem of insulation boards cracking due to thermal expansion and contraction in environments with large day-night temperature differences, thus reducing their sealing performance.

[0005] To achieve the above objectives, this utility model provides a wall insulation and reinforcement mechanism through the following technical solution: a cement board, wherein a cement adhesive for connecting with a building wall is provided on one side of the cement board, and an anti-deformation mechanism is provided on one side of the cement board through an anchoring component.

[0006] The anti-deformation mechanism includes two sets of extruded polystyrene insulation boards disposed on one side of the cement board. The outer side of each extruded polystyrene insulation board has an installation groove with a trapezoidal cross-section. A matching shape memory polyurethane sealing strip is embedded in the installation groove and is located between the two sets of extruded polystyrene insulation boards. The shape memory polyurethane sealing strip has a deformation cavity inside to provide deformation space for thermal expansion and contraction of the shape memory polyurethane sealing strip and the extruded polystyrene insulation board.

[0007] Preferably, the anchoring assembly includes an expansion bolt penetrating the interior of the cement board, with an expansion sleeve threaded onto one end of the expansion bolt and the expansion sleeve located inside the building wall. One end of the expansion bolt penetrates the extruded polystyrene insulation board and has a first threaded pressure plate threaded onto its outer side.

[0008] Preferably, it also includes a protective component, which includes a frame disposed on one side of the extruded polystyrene insulation board, with two sets of hot-dip galvanized steel wire mesh plates embedded on the outside of the frame to enhance the overall structural integrity, and a pulp honeycomb core for buffering external impact is filled between the two sets of hot-dip galvanized steel wire mesh plates, with the pulp honeycomb core located inside the frame.

[0009] Preferably, one side of the frame is further provided with crack-resistant cement mortar, and the crack-resistant cement mortar adopts existing polymer cement mortar material.

[0010] Preferably, one side of the crack-resistant cement mortar is also coated with an epoxy resin coating.

[0011] Preferably, the outer side of the shape memory polyurethane sealing strip is coated with polyurethane foaming agent, and the polyurethane foaming agent is flush with the surface of the extruded polystyrene insulation board.

[0012] This utility model provides a wall insulation and reinforcement mechanism. Compared with the prior art, it has the following advantages.

[0013] 1. After installing two sets of extruded polystyrene (XPS) insulation boards, spray polyurethane foam to fill and seal the joints of the XPS insulation boards, blocking heat penetration. When the XPS insulation boards and shape memory polyurethane sealing strips expand and contract due to temperature changes, the deformation cavity inside the shape memory polyurethane sealing strips provides a buffer, preventing rigid compression cracking. The polyurethane foam can slightly expand and contract to maintain the seal, preventing gaps from forming, thus preventing the insulation layer from cracking and solving the problem of joint cracking caused by temperature deformation of the insulation boards.

[0014] 2. The frame covers the outside of the extruded polystyrene insulation board, providing rigid support. Together with the hot-dip galvanized steel wire mesh and pulp honeycomb core, it forms a composite protective structure. The hot-dip galvanized steel wire mesh disperses external forces and evenly transmits stress. The pulp honeycomb core fills the space between two hot-dip galvanized steel wire meshes, absorbing impact energy through its porous honeycomb structure, reducing direct impact on the extruded polystyrene insulation board. Together, they achieve impact buffering and solve the problem of the insulation layer being easily broken by external forces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 This is an assembly diagram of the present invention;

[0017] Figure 3 This is a partial assembly diagram of the anti-deformation mechanism of this utility model;

[0018] Figure 4 This is a partial schematic diagram of the protective component of this utility model;

[0019] Figure 5This is a partially enlarged schematic diagram of the protective component of this utility model.

[0020] In the diagram: 1. Cement board; 101. Cement adhesive; 2. Expansion sleeve; 201. Expansion screw; 202. First threaded pressure plate; 3. Anti-deformation mechanism; 301. Extruded polystyrene insulation board; 302. Mounting groove; 303. Shape memory polyurethane sealing strip; 304. Deformation cavity; 305. Polyurethane foaming agent; 4. Protective components; 401. Frame; 402. Hot-dip galvanized steel wire mesh; 403. Pulp honeycomb core; 404. Crack-resistant cement mortar; 405. Epoxy resin coating. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] First implementation method:

[0023] refer to Figure 1-5 A wall insulation and reinforcement mechanism includes a cement board 1, a cement adhesive 101 for connecting with the building wall is provided on one side of the cement board 1, and an anti-deformation mechanism 3 is provided on one side of the cement board 1 through an anchoring component.

[0024] The anti-deformation mechanism 3 includes two sets of extruded polystyrene insulation boards 301 disposed on one side of the cement board 1. An installation groove 302 is provided on the outer side of the extruded polystyrene insulation board 301, and the installation groove 302 has a trapezoidal cross section. A matching shape memory polyurethane sealing strip 303 is embedded in the installation groove 302, and the shape memory polyurethane sealing strip 303 is located between the two sets of extruded polystyrene insulation boards 301. A deformation cavity 304 is provided inside the shape memory polyurethane sealing strip 303 to provide deformation space for thermal expansion and contraction of the shape memory polyurethane sealing strip 303 and the extruded polystyrene insulation board 301.

[0025] The anchoring assembly includes an expansion bolt 201 that penetrates the interior of the cement board 1. An expansion sleeve 2 is threaded onto one end of the expansion bolt 201 and is located inside the building wall. One end of the expansion bolt 201 penetrates the extruded polystyrene insulation board 301 and a first threaded pressure plate 202 is threaded onto its outer side.

[0026] The outer side of the shape memory polyurethane sealing strip 303 is coated with polyurethane foam 305, and the polyurethane foam 305 is flush with the surface of the extruded polystyrene insulation board 301.

[0027] After the cement adhesive 101 is evenly applied to one side of the cement board 1, the cement board 1 is moved to the outside of the building wall and attached. A hole is drilled in the building wall using a drilling device. Then the cement board 1 is pushed and the expansion sleeve 2 is extended into the installation hole formed by the drilling in the building wall through the expansion screw 201.

[0028] The first threaded pressure plate 202 is rotated with a wrench, which causes the expansion screw 201 and the expansion sleeve 2 to expand and lock, thereby fixing the installation position of the cement board 1. At the same time, the cement adhesive 101 is fully in contact with the outside of the building wall and cured, thereby enhancing the integrity of the wall base.

[0029] Apply special insulation board adhesive evenly to the back of two sets of extruded polystyrene insulation boards 301. Move one set of extruded polystyrene insulation boards 301 to one side of cement board 1 and press it to fix it. Then move the other set of extruded polystyrene insulation boards 301 so that the mounting groove 302 is aligned with the shape memory polyurethane sealing strip 303. Move it down to the designated position and press it to fully bond and fix the adhesive to one side of cement board 1. Then connect it to the other set of extruded polystyrene insulation boards 301 through the shape memory polyurethane sealing strip 303.

[0030] Spray polyurethane foam 305 to fill and seal the joints on the outside of the extruded polystyrene insulation board 301, thereby filling the installation gaps and blocking the heat penetration path.

[0031] When the extruded polystyrene insulation board 301 and the shape memory polyurethane sealing strip 303 are affected by thermal expansion and contraction due to changes in ambient temperature, the deformation cavity 304 inside the shape memory polyurethane sealing strip 303 provides a buffer space to avoid structural cracking caused by rigid compression.

[0032] Meanwhile, the polyurethane foaming agent 305 can slightly expand and contract with deformation while maintaining sealing performance, preventing gaps from forming. This process achieves the function of preventing cracking of the insulation layer, solving the problems of joint cracking, heat loss and water seepage on the wall caused by temperature deformation of the insulation board, and improving the reliability of the insulation structure.

[0033] Second implementation method:

[0034] The insulation layer is prone to cracking and falling off when exposed to severe weather or external impacts, posing a safety hazard.

[0035] refer to Figure 4-5In the second embodiment of this utility model, a protective component 4 is also included. The protective component 4 includes a frame 401 disposed on one side of the extruded polystyrene insulation board 301. Two sets of hot-dip galvanized steel wire mesh plates 402 for enhancing the overall structural integrity are embedded on the outside of the frame 401, and a pulp honeycomb core 403 for buffering external impact is filled between the two sets of hot-dip galvanized steel wire mesh plates 402. The pulp honeycomb core 403 is located inside the frame 401.

[0036] One side of the frame 401 is also provided with crack-resistant cement mortar 404, and the crack-resistant cement mortar 404 uses existing polymer cement mortar materials. One side of the crack-resistant cement mortar 404 is also sprayed with an epoxy resin coating 405.

[0037] The frame 401 covers the outside of the extruded polystyrene insulation board 301, providing rigid support for the inner structure. The frame 401, together with the hot-dip galvanized steel wire mesh 402 and the pulp honeycomb core 403, forms a composite protective structure. The hot-dip galvanized steel wire mesh 402 disperses external impact through the mesh structure, and evenly transmits local stress to the entire frame 401.

[0038] The pulp honeycomb core 403 is filled between two sets of hot-dip galvanized steel wire mesh plates 402. The honeycomb porous structure absorbs impact energy and reduces the direct force on the inner extruded polystyrene insulation board 301. The two work together to achieve the function of impact buffering and solve the problem of the insulation layer being easily broken by external impact.

[0039] Meanwhile, the polymer crack-resistant cement mortar 404 applied to the inner side of the frame 401 and the epoxy resin coating 405 sprayed on the outer side form a double protection. The polymer crack-resistant cement mortar 404 is bonded to the surface of the insulation layer through the permeation of the wire mesh plate to form a hard shell, preventing rainwater and moisture from penetrating the inner structure.

[0040] An epoxy resin coating of 405 is applied to the mortar surface to improve its resistance to ultraviolet aging and acid and alkali corrosion, and to extend the service life of the protective layer. The two work together to achieve waterproof and moisture-proof functions.

[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall surface insulation and reinforcement mechanism, comprising a cement board (1), one side of the cement board (1) is provided with a cement adhesive (101) for connecting with a building wall surface, characterized in that: The cement board (1) has an anti-deformation mechanism (3) installed on one side by an anchoring component; The anti-deformation mechanism (3) includes two sets of extruded polystyrene insulation boards (301) disposed on one side of the cement board (1). The extruded polystyrene insulation board (301) has an installation groove (302) on its outer side, and the installation groove (302) has a trapezoidal cross section. A suitable shape memory polyurethane sealing strip (303) is embedded in the installation groove (302), and the shape memory polyurethane sealing strip (303) is located between the two sets of extruded polystyrene insulation boards (301). The shape memory polyurethane sealing strip (303) has a deformation cavity (304) inside, which is used to provide deformation space for the thermal expansion and contraction of the shape memory polyurethane sealing strip (303) and the extruded polystyrene insulation board (301).

2. The wall thermal insulation reinforcing mechanism according to claim 1, characterized in that: The anchoring assembly includes an expansion bolt (201) that penetrates the interior of the cement board (1), an expansion sleeve (2) that is threaded onto one end of the expansion bolt (201) and is located inside the building wall, and an expansion bolt (201) that penetrates the extruded polystyrene insulation board (301) and is threaded onto the outer side of the expansion bolt (201) with a first threaded pressure plate (202).

3. The wall thermal insulation reinforcing mechanism according to claim 1, characterized in that: It also includes a protective component (4), which includes a frame (401) disposed on one side of the extruded polystyrene insulation board (301). Two sets of hot-dip galvanized steel wire mesh plates (402) for enhancing the overall structure are embedded on the outside of the frame (401), and a pulp honeycomb core (403) for buffering external impact is filled between the two sets of hot-dip galvanized steel wire mesh plates (402). The pulp honeycomb core (403) is located inside the frame (401).

4. The wall thermal insulation reinforcing mechanism according to claim 3, characterized in that: The frame (401) is also provided with crack-resistant cement mortar (404) on one side, and the crack-resistant cement mortar (404) is made of existing polymer cement mortar material with crack resistance and impermeability.

5. The wall thermal insulation reinforcing mechanism according to claim 4, characterized in that: The crack-resistant cement mortar (404) is also coated with an epoxy resin coating (405) on one side.

6. The wall thermal insulation reinforcing mechanism according to claim 1, characterized in that: The shape memory polyurethane sealing strip (303) is coated with polyurethane foaming agent (305) on the outside, and the polyurethane foaming agent (305) is flush with the surface of the extruded polystyrene insulation board (301).