Thermal bridge structure of exterior wall cantilever
By setting prefabricated grooves on the lower surface of the root of the exterior wall slab, filling the insulation mortar and laying alkali-resistant glass fiber mesh, the problems of complexity and high construction cost in traditional thermal bridge problems are solved, and more efficient construction and better insulation effects are achieved.
Patent Information
- Application Number
- CN202421568250.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The thermal bridge problem in traditional exterior wall slab-plated parts is difficult to effectively solve, resulting in complex construction, high cost and difficult to ensure quality.
Prefabricated grooves with a depth of less than 20mm are provided on the lower surface of the root of the exterior wall pickboard, filled with insulation mortar or putty with strong affinity with concrete materials, and lay alkali-resistant glass fiber mesh to form a waterproof layer and putty layer.
The construction process is simplified, the construction difficulty and cost are reduced, the construction quality and thermal insulation performance are improved, and the durability and safety of the structure are enhanced.
Smart Images

Figure CN222745343U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a thermal bridge structure of an exterior wall cantilever plate. Background Art
[0002] At present, according to energy-saving design requirements, exterior wall cantilever parts such as balconies need to pay special attention to thermal bridge problems to ensure the energy-saving effect of buildings in hot summer and cold winter areas. Traditional solutions have the following limitations:
[0003] The traditional method requires the installation of an insulation board as a whole at the bottom of the cantilever board, which not only wastes materials, but also makes the construction difficult and the construction quality difficult to guarantee due to the construction location on the roof.
[0004] Existing technical solutions usually require sticking the insulation board upwards to the bottom surface of the balcony and fixing it with anchor bolts, then installing the alkali-resistant glass fiber mesh, applying the anti-cracking mortar layer, waterproof layer, moisture-proof putty and a base and two-sided paint. This series of steps increases the complexity and cost of construction. Utility Model Content
[0005] The purpose of the utility model is to provide a method to simplify the construction process, improve the construction quality, and effectively enhance the performance and long-term durability of the building in terms of thermal bridge insulation, and is suitable for the thermal bridge structure of the exterior wall cantilever plate in hot summer and cold winter areas and similar environments.
[0006] The purpose of the utility model is achieved in this way:
[0007] A thermal bridge structure of an exterior wall cantilever plate, comprising an exterior wall cantilever plate, wherein a groove with a depth of less than 20 mm is arranged on the lower surface of the root of the exterior wall cantilever plate, the groove is filled with thermal insulation mortar or thermal insulation putty having strong affinity with concrete materials, and the surface of the thermal insulation mortar or thermal insulation putty is paved with an alkali-resistant glass fiber mesh extending 150 mm outward from the groove;
[0008] The lower surface of the exterior wall cantilever plate is coated with a polymer anti-cracking mortar with a thickness of 5 mm and a mixture of 1:2.5 and an alkali-resistant glass fiber mesh, forming a waterproof layer, and the waterproof layer is located on the surface of the alkali-resistant glass fiber mesh;
[0009] The surface of the waterproof layer is coated with N-type putty twice to form a putty layer, and the surface of the putty layer is coated with a coating including a primer and two layers of topcoat to protect and beautify the surface.
[0010] By filling the grooves, effectively utilizing thermal insulation mortar or thermal insulation putty and laying alkali-resistant glass fiber mesh, material waste is minimized and costs are saved.
[0011] By setting grooves on the lower surface of the root of the exterior wall cantilever plate, the construction process is simpler, which can effectively reduce the construction difficulty and improve the construction quality, ensuring the reliability and durability of the structure.
[0012] The grooves are filled with insulation material and paved with alkali-resistant fiberglass mesh, which not only improves the tensile strength and structural stability of the cantilever board, but also increases the overall durability and safety.
[0013] The lower surface of the exterior wall cantilever is coated with a polymer anti-cracking mortar with a thickness of 5mm and a built-in alkali-resistant glass fiber mesh mixed in a ratio of 1:2.5 to form an effective waterproof layer, protect the cantilever structure from moisture damage and extend its service life.
[0014] The final construction of the N-type putty layer, primer and two layers of topcoat not only beautifies the surface of the exterior wall cantilevers, but also improves the surface's weather resistance and stain resistance, reducing maintenance costs.
[0015] The purpose of the utility model can also be solved by the following technical measures:
[0016] Furthermore, the width of the groove is 500 mm.
[0017] The groove width of 500mm means that the insulation mortar or insulation putty has a large filling area, which can effectively increase the insulation performance of the external wall cantilever. This design ensures that a larger area of insulation material is covered, improving the overall insulation effect of the external wall structure.
[0018] The wider groove design simplifies the construction process, reduces the time and labor cost of filling insulation materials. Construction workers can complete the filling and surface treatment work more quickly, improving the efficiency and quality of construction.
[0019] The increase in groove width helps ensure the uniformity and consistency of the insulation layer, thereby enhancing the structural stability and durability of the exterior wall cantilever. This design can effectively prevent the movement or collapse of the insulation material during use.
[0020] Although the groove width increases the amount of insulation material used, it still saves on overall material costs compared to traditional insulation board covering methods. The larger fill area makes the insulation material used more effective and reduces waste.
[0021] The coverage area and thickness of the insulation layer are increased, further improving the overall energy-saving performance of the exterior wall cantilever. In areas with hot summers and cold winters, effective insulation design can significantly reduce energy consumption and improve indoor comfort.
[0022] Furthermore, the exterior wall cantilever is a balcony.
[0023] As part of the exterior wall cantilever, the balcony significantly improves the energy-saving performance of the building through effective insulation design (such as prefabricated grooves filled with insulation mortar). In areas with hot summers and cold winters, good insulation capacity can reduce energy consumption and improve indoor thermal comfort.
[0024] The design of prefabricated grooves and thermal insulation mortar filling simplifies the construction process of balcony exterior wall cantilevers. This not only improves construction efficiency, but also ensures the consistency and reliability of construction quality. Construction workers can control the filling and coating process more accurately to ensure that each step meets the design requirements.
[0025] The exterior wall cantilever plate is used as a balcony, and its surface can be directly used to install various functional facilities (such as chandeliers, clothes drying racks, etc.). Through the reasonable design of groove filling and surface coating, the installation reliability and convenience of these facilities are improved, and the overall appearance of the balcony is beautified.
[0026] The prefabricated grooves and precisely filled insulation mortar used in the design effectively reduce material waste. Compared with traditional insulation board covering, this design is more delicate and economical, saving material costs in building construction.
[0027] The beneficial effects of the utility model are as follows:
[0028] The utility model adopts the design of prefabricated grooves and thermal insulation mortar to make the construction process more convenient. The groove prefabrication is completed during the concrete pouring, avoiding the complicated installation and fixing steps of the thermal insulation board in the later stage, and greatly simplifying the construction process.
[0029] The utility model simplifies the construction process and not only improves the construction efficiency, but also helps to ensure the consistency and reliability of the construction quality. The use of thermal insulation mortar can effectively fill the grooves and ensure the thermal insulation effect and structural stability.
[0030] Compared with the traditional insulation board installation method, the present invention saves a lot of insulation materials (such as insulation boards) and labor costs. The design of the prefabricated groove not only reduces material waste, but also reduces the labor cost required for construction.
[0031] Enhanced installation reliability and convenience:
[0032] The utility model can directly fix the chandeliers, clothes hangers and other living facilities to the concrete interior at the top of the balcony, without relying on the fixing points of the external insulation layer. This improves the reliability and convenience of the installation facilities and beautifies the use space of the balcony.
[0033] This utility model, through the innovative application of prefabricated grooves and thermal insulation mortar, significantly improves the construction efficiency and quality assurance of the exterior wall cantilever plate area, while saving material and labor costs, providing residents with a more convenient and reliable use experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 Schematic diagram of the thermal bridge structure of the exterior wall cantilever. DETAILED DESCRIPTION
[0035] Example, combined with Figure 1 As shown, a thermal bridge structure of an exterior wall cantilever plate comprises an exterior wall cantilever plate, wherein a groove 1 having a depth of less than 20 mm is arranged on the lower surface of the root of the exterior wall cantilever plate, wherein the groove 1 is filled with a thermal insulation mortar 2 or a thermal insulation putty having a strong affinity with concrete materials, and the surface of the thermal insulation mortar 2 or the thermal insulation putty is paved with an alkali-resistant glass fiber mesh and extends 150 mm outward from the groove 1;
[0036] The lower surface of the exterior wall cantilever plate is coated with a polymer anti-cracking mortar with a thickness of 5 mm and a mixture of 1:2.5 and an alkali-resistant glass fiber mesh, forming a waterproof layer, and the waterproof layer is located on the surface of the alkali-resistant glass fiber mesh;
[0037] The surface of the waterproof layer is coated with N-type putty twice to form a putty layer, and the surface of the putty layer is coated with a coating including a primer and two layers of topcoat to protect and beautify the surface.
[0038] Furthermore, the width of the groove 1 is 500 mm.
[0039] Furthermore, the exterior wall cantilever plate is a balcony 3 .
Claims
1. A thermal bridge structure of an exterior wall cantilever plate, comprising an exterior wall cantilever plate, characterized in that: The lower surface of the root of the external wall cantilever plate is provided with a groove (1) with a depth of less than 20 mm, the groove (1) is filled with a thermal insulation mortar (2) or a thermal insulation putty having a strong affinity with the concrete material, and the surface of the thermal insulation mortar (2) or the thermal insulation putty is paved with an alkali-resistant glass fiber mesh and extends 150 mm outward from the groove (1); The lower surface of the exterior wall cantilever plate is coated with a polymer anti-cracking mortar with a thickness of 5 mm and a mixture of 1:2.5 and an alkali-resistant glass fiber mesh, forming a waterproof layer, and the waterproof layer is located on the surface of the alkali-resistant glass fiber mesh; The surface of the waterproof layer is coated with N-type putty twice to form a putty layer, and the surface of the putty layer is coated with a coating including a primer and two layers of topcoat to protect and beautify the surface.
2. The thermal bridge structure of the exterior wall cantilever plate according to claim 1 is characterized by: The width of the groove (1) is 500 mm.
3. The thermal bridge structure of the exterior wall cantilever plate according to any one of claims 1-2, characterized in that: The external wall cantilever plate is a balcony (3).