Ultra-low energy consumption building thermal insulation outer wall structure
By optimizing the structural design of the ultra-low energy consumption building insulation exterior wall, and using components such as keel frame and fixing bolts, the splicing firmness is enhanced, which solves the problem of the detachment of the inner wall panel in the traditional structure, improves the insulation effect and service life, and reduces building energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional ultra-low energy building insulation wall structures are prone to poor splicing during long-term use, leading to the detachment of the inner wall panels, affecting aesthetics and safety, and reducing insulation effect and service life.
By optimizing the structural design and using parallel beams and columns in the building, components such as keel frames, L-shaped plates, horizontal plates, and fixing bolts are employed to enhance the splicing strength between various parts. Combined with insulation materials such as polystyrene foam, polyurethane foam, and rock wool, the tight fit and fixation of each component are ensured.
It effectively avoids the problem of detachment of the inner panels of the exterior wall, improves the overall performance and service life of the insulated exterior wall, maintains good insulation effect and reduces building energy consumption.
Smart Images

Figure CN224412849U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thermal insulation exterior wall technology, specifically relating to the structure of thermal insulation exterior walls for ultra-low energy consumption buildings. Background Technology
[0002] In the construction industry, traditional exterior walls have significant heat transfer problems due to their high thermal conductivity. In winter, indoor heat easily dissipates to the outside through the walls, making it difficult to maintain indoor temperature and requiring a large amount of energy for heating. In summer, the high temperature outside heat enters the room, making the indoor environment stuffy and increasing the operating load of air conditioning and other cooling equipment. To solve this problem, insulated exterior walls have emerged. By adding insulation materials, the heat transfer efficiency is significantly reduced, effectively maintaining the stability of indoor temperature. Especially in hot southern regions, insulated exterior walls can effectively block solar radiation and high outside temperatures in summer, reducing the operating time of air conditioning, which not only reduces air conditioning energy consumption but also alleviates the pressure on the power supply to some extent. At the same time, insulated exterior walls can also effectively reduce indoor temperature fluctuations.
[0003] Currently, the ultra-low energy consumption building insulation exterior wall structure with patent publication number CN217027566U includes insulation boards, insulation material layers, a keel frame, and an inner wall panel. These are all horizontally arranged on the beams and columns of the building, and the ends of the keel frame are connected to the columns of the building's beams and columns. However, this structure has the problem of unstable overall splicing. During long-term use, the inner wall panel is prone to falling off, which not only affects the aesthetics of the building but may also pose safety hazards and reduce the service life and insulation effect of the insulation exterior wall. Utility Model Content
[0004] The purpose of this utility model is to provide an ultra-low energy consumption building insulation exterior wall structure. By optimizing the structural design, the splicing firmness between various components is enhanced, effectively avoiding the problem of the inner panel of the exterior wall falling off, and improving the overall performance and service life of the insulation exterior wall.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultra-low energy consumption building insulation exterior wall structure, comprising two parallel building beams and columns, insulation boards installed at one end of the two building beams and columns, a keel frame and a first exterior wall inner panel installed on the inner side of the two building beams and columns, a second exterior wall inner panel installed at one end of the first exterior wall inner panel, an L-shaped plate installed on the inner side of the building beams and columns to fix the first exterior wall inner panel and the second exterior wall inner panel, a first receiving groove opened at the bottom of the L-shaped plate, a second receiving groove opened at the bottom of the second exterior wall inner panel and communicating with the first receiving groove, a horizontal plate installed inside the first receiving groove and the second receiving groove, a third fixing bolt installed on the horizontal plate to fix the L-shaped plate and the horizontal plate, and a fourth fixing bolt installed on the horizontal plate to fix the second exterior wall inner panel and the horizontal plate.
[0006] Preferably, the keel frame has multiple screw holes, and the keel frame is connected to the beams and columns of the building by multiple screws.
[0007] Preferably, the interior of both the first and second outer wall inner panels is filled with thermal insulation material, and the L-shaped plate is provided with a first fixing bolt for fixing the first outer wall inner panel and the L-shaped plate.
[0008] Preferably, the L-shaped plate is provided with a second fixing bolt for fixing the building beams and columns and the L-shaped plate, and the two sides of the horizontal plate and the second receiving groove and the first receiving groove are tightly fitted together.
[0009] Preferably, it further includes a concave plate disposed inside the second receiving groove and the first receiving groove, and the two sides of the concave plate are tightly fitted to the second receiving groove and the first receiving groove.
[0010] Preferably, the concave plate is provided with a fifth fixing bolt for fixing the concave plate and the L-shaped plate, and the concave plate is provided with a sixth fixing bolt for fixing the concave plate and the second outer wall inner plate.
[0011] Preferably, the width of the first outer wall inner panel is the same as the width of the keel frame, and the second outer wall inner panel and the L-shaped panel are tightly fitted together.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By optimizing the structural design and enhancing the splicing strength between various components, the problem of detachment of the inner panels of the exterior wall is effectively avoided, improving the overall performance and service life of the insulated exterior wall. It can also effectively guarantee the insulation effect, reduce building energy consumption, and has good practicality and promotion value. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a partial cross-sectional view of the present invention.
[0016] Figure 3 For the present utility model Figure 2 A magnified structural diagram of area A in the diagram;
[0017] Figure 4 For the present utility model Figure 3 A schematic diagram of the enlarged structure of region F in the diagram;
[0018] In the diagram: 1. Building beams and columns; 2. Insulation board; 3. Frame; 4. First exterior wall inner panel; 5. Second exterior wall inner panel; 51. Second receiving groove; 6. L-shaped plate; 61. First fixing bolt; 62. Second fixing bolt; 63. First receiving groove; 7. Horizontal plate; 71. Third fixing bolt; 72. Fourth fixing bolt; 8. Concave plate; 81. Fifth fixing bolt; 82. Sixth fixing bolt. Detailed Implementation
[0019] 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.
[0020] Example 1
[0021] Please see Figures 1-4 This is the first embodiment of the present invention, which provides an ultra-low energy consumption building insulation exterior wall structure, including two parallel building beam-column sections 1, realizing the addition of building beam-column sections 1, insulation board 2 installed at one end of the two building beam-column sections 1, the insulation board 2 and the two building beam-column sections 1 spliced together, a keel frame 3 and a first exterior wall inner panel 4 installed on the inner side of the two building beam-column sections 1, realizing the addition of keel frame 3 and first exterior wall inner panel 4, the keel frame 3 is used to increase the strength of the insulation exterior wall, and a second exterior wall inner panel 5 is set at one end of the first exterior wall inner panel 4 and installed on the inner side of the building beam-column section 1. The L-shaped plate 6, which fixes the first outer wall inner panel 4 and the second outer wall inner panel 5, has a first receiving groove 63 at the bottom of the L-shaped plate 6, thus realizing the opening of the first receiving groove 63. The second receiving groove 51, which is opened at the bottom of the second outer wall inner panel 5 and communicates with the first receiving groove 63, thus realizing the opening of the second receiving groove 51. The horizontal plate 7 installed inside the first receiving groove 63 and the second receiving groove 51, the third fixing bolt 71 set on the horizontal plate 7 to fix the L-shaped plate 6 and the horizontal plate 7, and the fourth fixing bolt 72 set on the horizontal plate 7 to fix the second outer wall inner panel 5 and the horizontal plate 7, help to increase the stability of the splicing of the second outer wall inner panel 5 and the L-shaped plate 6.
[0022] In this embodiment, preferably, the keel frame 3 has multiple screw holes, and the keel frame 3 is connected to the building beam and column part 1 by multiple screws, so that the keel frame 3 and the building beam and column part 1 are stably spliced.
[0023] In this embodiment, preferably, the L-shaped plate 6 is provided with a first fixing bolt 61 to fix the first outer wall inner plate 4 and the L-shaped plate 6, so that the first outer wall inner plate 4 and the L-shaped plate 6 are firmly fixed.
[0024] In this embodiment, preferably, the L-shaped plate 6 is provided with a second fixing bolt 62 to fix the building beam and column part 1 and the L-shaped plate 6, so that the building beam and column part 1 and the L-shaped plate 6 are firmly fixed, and the two sides of the horizontal plate 7 and the second receiving groove 51 and the first receiving groove 63 are tightly fitted.
[0025] In this embodiment, preferably, a concave plate 8 is also provided inside the second receiving groove 51 and the first receiving groove 63, thereby realizing the addition of the concave plate 8, and the two sides of the concave plate 8 are closely fitted with the second receiving groove 51 and the first receiving groove 63.
[0026] In this embodiment, preferably, the width of the first outer wall inner panel 4 is the same as the width of the keel frame 3, and the second outer wall inner panel 5 and the L-shaped panel 6 are tightly fitted together.
[0027] Both the inner panels of the first and second exterior walls (4 and 5) are filled with insulation material. Common insulation materials include the following:
[0028] Polystyrene foam is divided into expanded polystyrene (EPS) and extruded polystyrene (XPS). EPS is a white solid with a fine closed-cell structure, made by pre-expanding expandable polystyrene beads containing volatile liquid foaming agents and then heating and molding them in a mold. XPS is produced by extrusion molding and has a continuous and uniform closed-cell honeycomb structure. Its insulation principle is mainly based on the characteristic that air is a poor conductor of heat. The polystyrene foam contains a large number of tiny closed pores, which divide the air into many independent small spaces, greatly restricting air convection and thus reducing the transfer of heat through the air. At the same time, the low thermal conductivity of polystyrene itself further hinders heat conduction, achieving a good thermal insulation effect.
[0029] Polyurethane foam: Polyurethane foam is a polymer material made from isocyanates and polyols as the main raw materials, foamed through a chemical reaction under the action of foaming agents, catalysts, and other additives. It also has a closed-cell structure with a high closed-cell rate. On the one hand, the gas within the closed cells restricts heat convection; on the other hand, the molecular structure of polyurethane gives it a low thermal conductivity, effectively preventing heat conduction. Furthermore, polyurethane foam has good adhesion, allowing it to bond tightly to the interior panels of exterior walls, reducing gaps and preventing heat loss through gaps, further improving thermal insulation performance.
[0030] Rock wool: Rock wool is an inorganic fiber material made from natural rocks such as basalt and diabase as the main raw materials, which are melted and fiberized at high temperatures. Its insulation principle is based on the resistance of the fiber structure to heat transfer. The interlacing of the fibers in rock wool forms a large number of tiny pores, which are filled with air, effectively slowing down the heat conduction speed. At the same time, the complex fiber structure can also reflect and scatter heat radiation multiple times, reducing the transfer of heat in the form of radiation. Furthermore, rock wool is an inorganic material and is non-combustible. While achieving the function of insulation, it can also improve the fire safety performance of buildings.
[0031] Example 2
[0032] Please see Figures 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment, but differs in that:
[0033] The concave plate 8 is provided with a fifth fixing bolt 81 to fix the concave plate 8 and the L-shaped plate 6, and a sixth fixing bolt 82 to fix the concave plate 8 and the second outer wall inner plate 5, which helps to increase the stability of the installation of the concave plate 8.
[0034] The working principle and usage process of this utility model are as follows: The insulation board 2 is installed at one end of two parallel building beams and columns 1, so that the insulation board 2 and the building beams and columns 1 are precisely spliced together. The two are tightly connected by special adhesives or connectors to form a preliminary insulation and protection layer.
[0035] Install the keel frame 3 on the inner side of the two building beam and column parts 1; since multiple screw holes are pre-drilled on the keel frame 3, use screws to pass through the screw holes in sequence to firmly fix the keel frame 3 to the building beam and column parts 1, ensuring that the keel frame 3 is installed flat and stable, providing reliable support for the subsequent installation of the inner wall panel, and enhancing the overall strength of the insulated outer wall.
[0036] Adjust the position of the first outer wall inner panel 4 so that it fits tightly against the keel frame 3; use the first fixing bolt 61 on the L-shaped plate 6 to fix the first outer wall inner panel 4 to the L-shaped plate 6, ensuring that the first outer wall inner panel 4 is installed firmly and in the correct position; place the second outer wall inner panel 5 at one end of the first outer wall inner panel 4 so that the second outer wall inner panel 5 fits tightly against the L-shaped plate 6; at this time, the second receiving groove 51 at the bottom of the second outer wall inner panel 5 is aligned and connected with the first receiving groove 63 at the bottom of the L-shaped plate 6;
[0037] Place the horizontal plate 7 into the first receiving groove 63 and the second receiving groove 51, ensuring that both sides of the horizontal plate 7 are tightly fitted with the second receiving groove 51 and the first receiving groove 63; use the third fixing bolt 71 to fix the L-shaped plate 6 to the horizontal plate 7, and use the fourth fixing bolt 72 to fix the second outer wall inner plate 5 to the horizontal plate 7, enhancing the stability of the splicing between the second outer wall inner plate 5 and the L-shaped plate 6; then, place the concave plate 8 into the second receiving groove 51 and the first receiving groove 63, again ensuring that both sides are tightly fitted with the groove walls, use the fifth fixing bolt 81 to fix the concave plate 8 to the L-shaped plate 6, and use the sixth fixing bolt 82 to fix the concave plate 8 to the second outer wall inner plate 5, further improving the stability of the overall structure.
[0038] Although embodiments of the present invention have been shown and described in detail above, 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. An ultra-low energy building thermal insulation external wall construction, characterized in that: The system includes two parallel building beam-column sections (1), an insulation board (2) installed at one end of the two building beam-column sections (1), a keel frame (3) and a first outer wall inner panel (4) installed on the inner side of the two building beam-column sections (1), a second outer wall inner panel (5) installed at one end of the first outer wall inner panel (4), an L-shaped plate (6) installed on the inner side of the building beam-column section (1) to fix the first outer wall inner panel (4) and the second outer wall inner panel (5), a first receiving groove (63) opened at the bottom of the L-shaped plate (6), a second receiving groove (51) opened at the bottom of the second outer wall inner panel (5) and connected to the first receiving groove (63), a horizontal plate (7) installed inside the first receiving groove (63) and the second receiving groove (51), a third fixing bolt (71) set on the horizontal plate (7) to fix the L-shaped plate (6) and the horizontal plate (7), and a fourth fixing bolt (72) set on the horizontal plate (7) to fix the second outer wall inner panel (5) and the horizontal plate (7).
2. The super low energy building thermal insulation exterior wall structure according to claim 1, characterized in that: The keel frame (3) has multiple screw holes, and the keel frame (3) is connected to the building beam and column parts (1) by multiple screws.
3. The ultra-low energy consumption building thermal insulation exterior wall structure according to claim 1, characterized in that: The interior of the first outer wall inner panel (4) and the second outer wall inner panel (5) are filled with thermal insulation material. The L-shaped plate (6) is provided with a first fixing bolt (61) to fix the first outer wall inner panel (4) and the L-shaped plate (6).
4. The ultra-low energy consumption building thermal insulation exterior wall structure according to claim 1, characterized in that: The L-shaped plate (6) is provided with a second fixing bolt (62) to fix the building beam and column part (1) and the L-shaped plate (6), and the two sides of the horizontal plate (7) and the second receiving groove (51) and the first receiving groove (63) are closely fitted.
5. The ultra-low energy consumption building thermal insulation exterior wall structure according to claim 1, characterized in that: It also includes a concave plate (8) disposed inside the second receiving groove (51) and the first receiving groove (63), and the two sides of the concave plate (8) are closely fitted to the second receiving groove (51) and the first receiving groove (63).
6. The ultra-low energy consumption building thermal insulation exterior wall structure according to claim 5, characterized in that: The concave plate (8) is provided with a fifth fixing bolt (81) for fixing the concave plate (8) and the L-shaped plate (6), and the concave plate (8) is provided with a sixth fixing bolt (82) for fixing the concave plate (8) and the second outer wall inner plate (5).
7. The ultra-low energy consumption building thermal insulation exterior wall structure according to claim 1, characterized in that: The width of the first outer wall inner panel (4) is the same as the width of the keel frame (3), and the second outer wall inner panel (5) and the L-shaped panel (6) are closely fitted together.