Passive building external wall thermal insulation system

Abstract

The utility model provides a passive building outer wall thermal insulation system, which relates to the technical field, and comprises a thermal insulation layer positioned on the outer side of a building outer wall, the thermal insulation layer comprises rock wool boards, and the rock wool boards are uniformly laid on the outer side of the building outer wall and are fixed with the building outer wall through a plurality of anchor nail units; each anchor unit comprises a steel nail at the end, an expansion shell connected with the steel nail and a cover plate, and a first adhesive film is connected between the expansion shell and the rock wool board. Expansion plug plates are arranged in abutted seams between the rock wool plates, and second adhesive films are connected between the expansion plug plates and the rock wool plates. The passive building external wall thermal insulation structure has the advantages of being reasonable in design, simple in structure, safe and reliable, greatly simplifying the method of passive building external wall thermal insulation, and avoiding the technical problems caused by the thickness and the weight of double-layer thermal insulation of many passive building external walls in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation systems, and particularly relates to a passive building exterior wall thermal insulation system. Background Art

[0002] In the prior art, most passive building exterior walls adopt the form of double-layer exterior wall thermal insulation. Considering the thickness and weight of the double-layer thermal insulation, first, it increases the load of the entire building; second, it increases the thickness of the external passive window frames; third, the construction layout is relatively complex, requiring staggered lap joints and considering positions such as window frames and the internal and external corners of the wall. Moreover, the material cost of the exterior wall thermal insulation itself is relatively high. During actual construction, it is mostly necessary to fix the double-layer thermal insulation boards in the form of or a combination of interlayer brackets, bonding between boards, and rivet connection. And after the construction is completed, there is still a relatively large hidden danger of falling off, and the construction process is also relatively complex, and the construction cost is relatively high.

[0003] How to solve the above technical problems is the subject faced by the utility model. Summary of the Utility Model

[0004] In order to solve the deficiencies of the prior art, the utility model provides a passive building exterior wall thermal insulation system with reasonable design, simple structure, safety and reliability, which greatly simplifies the practice of passive building exterior wall thermal insulation and avoids many technical problems caused by the thickness and weight of double-layer thermal insulation in the prior art for passive building exterior walls.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model provides a passive building exterior wall thermal insulation system, including a thermal insulation layer located on the outer side of the building exterior wall. The thermal insulation layer includes rock wool boards, and the rock wool boards are evenly laid on the outer side of the building exterior wall and fixed to the building exterior wall through a number of anchor bolt units;

[0006] The anchor bolt unit includes a steel nail at the end, an expansion shell and a cover plate connected to the steel nail. A first adhesive film is connected between the expansion shell and the rock wool board;

[0007] An expansion plug board is arranged in the joint between the rock wool boards, and a second adhesive film is connected between the expansion plug board and the rock wool board.

[0008] A mortar paper surface layer is arranged between the rock wool board and the building exterior wall, and a sealing coating is coated on the outer side of the rock wool board, and a mortar paper surface layer is arranged on the outer side of the sealing coating.

[0009] The expansion plug board includes a rigid plate body, and the end of the rigid plate body is provided with the second adhesive film;

[0010] A number of pearl cotton sheets are evenly distributed on both sides of the plate surface of the plate body.

[0011] The rigid plate body is made of nylon material.

[0012] One end of the expansion shell away from the steel nail is in the shape of a circular plate, and a circular channel passing through the steel nail is provided in the middle.

[0013] One end of the expansion shell is connected to the steel nail, and the other end is movably connected with the cover plate.

[0014] The steel nail is made of galvanized steel nail material, and a thread is provided at the end.

[0015] The cover plate is a circular plate body, and an external thread is provided at the edge. A connecting ring is fixedly provided on one side of the expansion shell away from the steel nail, and an internal thread is provided on the inner side of the connecting ring. The internal thread is in threaded fit connection with the external thread.

[0016] A circle of protrusions is provided on the circular plate at one end of the expansion shell away from the steel nail, and a circle of airtight rubber strips is provided on one side of the cover plate close to the circular plate of the expansion shell. The airtight rubber strips correspond to the protrusions.

[0017] A circle of the first adhesive film is fixedly connected to the outside of the connecting ring.

[0018] The thermal insulation layer includes internal and external corner rock wool boards, and the upper and lower plates of the internal and external corner rock wool boards are connected through mutually matching concave openings and convex openings.

[0019] A rigid plastic layer is connected to the outside of the internal and external corner rock wool boards in a vacuum manner. A plurality of anchor bolt holes are provided in the rigid plastic layer; the anchor bolt holes are reserved for passing through the anchor bolt units.

[0020] A third adhesive film is provided on the outside of the connection between adjacent internal and external corner rock wool boards.

[0021] A fourth adhesive film is provided at the connection between the rock wool board and the window frame. The fourth adhesive film is partially pasted on the window frame and partially pasted on the connection edge between the rock wool board and the window frame.

[0022] The first adhesive film, the second adhesive film, the third adhesive film, and the fourth adhesive film are all airtight adhesive films. The adhesive film is made of pe film or gas barrier film.

[0023] The airtight coating is polyester paint.

[0024] The beneficial effects of the present utility model are as follows: By adopting the method of combining adhesive films with external wall thermal insulation, the passive building single-layer external wall thermal insulation is realized, which greatly simplifies the external wall thermal insulation method of passive buildings and saves costs, and to a certain extent, it is green construction.

[0025] By adding a sealed adhesive film around the circumferential circle of the connecting ring of the anchor unit and setting a sealed cover plate to achieve the sealing effect of the anchor unit, the heat bridge can be isolated and the tightness can be enhanced. The utility model fixes the external wall insulation through a threaded cover plate combined with a supporting anchor, and through the combination of the cover plate and the adhesive film, it can not only play a good role in closing and isolating the heat bridge, but also reduce the thickness of the external wall insulation through the sealing method of the cover plate, thus improving the general practice of double-layer insulation for the external wall of passive buildings;

[0026] The head of the steel nail is designed with a rotary expansion function. During the process of rotating and tightening the tail, the head of the steel nail expands simultaneously to fill the entire channel, increasing the pulling force of the pit;

[0027] By setting EPE pearl cotton with a sealed adhesive film and an expansion plug plate, the sealing effect of the splicing part of the rock wool can be achieved. The extrusion of the expansion plug plate and the rock wool joint, combined with the sealed adhesive film, can play a good role in closing and isolating the heat bridge at the insulation joint position;

[0028] By setting the combination of the sealed adhesive film and the internal and external corner strips, the lap joint between the passive window air barrier film and special positions such as window frames and internal and external corners of the wall is realized, forming a closed effect;

[0029] By setting the modular tongue-and-groove splicing of the large corner of the building, the straight and sealed effect of the large corner of the rock wool external wall is realized;

[0030] By optimizing the composite method of the rock wool material, the air barrier effect of the rock wool itself is strengthened; BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0032] Figure 2 is a sectional view of the internal structure of the anchor unit of the utility model.

[0033] Figure 3 is a left view of the anchor unit of the utility model.

[0034] Figure 4 is Figure 2 a partial enlarged schematic diagram of area A of

[0035] Figure 5 is a structural schematic diagram of the expansion plug plate of the utility model.

[0036] Figure 6 is a three-dimensional structural schematic diagram of the internal and external corner rock wool board of the utility model.

[0037] Figure 7 is a structural schematic diagram of the rock wool board of the utility model.

[0038] Among them, the reference numerals are: 1, rock wool board; 101, mortar paper surface layer; 102, airtight coating; 2, anchor unit; 201, steel nail; 202, expansion shell; 203, cover plate; 204, first adhesive film; 205, connecting ring; 206, protrusion; 207, airtight rubber strip; 3, expansion plug board; 301, second adhesive film; 302, rigid plate body; 303, EPE sheet; 4, corner rock wool board; 401, concave opening; 402, convex opening; 403, rigid plastic layer; 404, anchor bolt hole; 405, third adhesive film; 5, window frame; 501, fourth adhesive film. Specific implementation mode

[0039] In order to clearly illustrate the technical features of this solution, the following is an elaboration of this solution through specific implementation modes.

[0040] See Figures 1 to 7 As shown, this embodiment is a passive building exterior wall thermal insulation system, including a thermal insulation layer located on the outer side of the building exterior wall. The thermal insulation layer includes a rock wool board 1. A mortar paper surface layer 101 is provided between the rock wool board 1 and the building exterior wall. An airtight coating 102 is coated on the outer side of the rock wool board 1. The airtight coating is polyester paint. A mortar paper surface layer 101 is provided on the outer side of the airtight coating 102. The rock wool boards 1 are evenly laid on the outer side of the building exterior wall and are fixed to the building exterior wall through a number of anchor units 2.

[0041] The anchor unit 2 includes a steel nail 201 at the end, an expansion shell 202 and a cover plate 203 connected to the steel nail 201. A first adhesive film 204 is connected between the expansion shell 202 and the rock wool board 1. One end of the expansion shell 202 far from the steel nail 201 is circular plate-shaped, and a circular channel penetrating the steel nail 201 is opened in the middle. One end of the expansion shell 202 is connected to the steel nail 201, and the other end is movably connected with a cover plate 203. The steel nail 201 is made of galvanized steel nail material, and a thread is provided at the end. The cover plate 203 is a circular plate body, and an external thread is provided at the edge. A connecting ring 205 is fixedly arranged on the side of the expansion shell 202 far from the steel nail 201. An internal thread is arranged on the inner side of the connecting ring 205, and the internal thread is in threaded fit connection with the external thread. A circle of protrusions 206 is arranged on the circular plate at one end of the expansion shell 202 far from the steel nail 201. A circle of airtight rubber strips 207 is arranged on the side of the cover plate 203 close to the circular plate of the expansion shell 202. The airtight rubber strips 207 correspond to the protrusions 206. A circle of the first adhesive film 204 is fixedly connected to the outer side of the connecting ring 205.

[0042] An expansion plug board 3 is arranged in the joint between the rock wool boards 1. A second adhesive film 301 is connected between the expansion plug board 3 and the rock wool board 1. The expansion plug board 3 includes a rigid plate body 302. The second adhesive film 301 is arranged at the end of the rigid plate body 302. A number of EPE sheets 303 are evenly distributed on both sides of the plate surface of the plate body 302. The rigid plate body 302 is made of nylon material.

[0043] The heat insulation layer includes the internal and external corner rock wool boards 4. The upper and lower plates of the internal and external corner rock wool boards 4 are connected through the mutually cooperating concave openings 401 and convex openings 402. A rigid plastic layer 403 is connected to the outside of the internal and external corner rock wool boards 4 in a vacuum manner. A number of anchor bolt holes 404 are provided in the rigid plastic layer 403; the anchor bolt holes 404 are reserved for passing through the anchor bolt units 2, and a third adhesive film 405 is provided on the outside of the connection between adjacent internal and external corner rock wool boards 4.

[0044] A fourth adhesive film 501 is provided at the connection between the rock wool board 1 and the window frame 5. The fourth adhesive film 501 is partially adhered to the window frame 5 and partially adhered to the connection edge between the rock wool board 1 and the window frame 5.

[0045] The first adhesive film 204, the second adhesive film 301, the third adhesive film 405, and the fourth adhesive film 501 are all airtight adhesive films. The adhesive film is made of a PE film or a gas barrier film.

[0046] The technical features not described in the present utility model can be achieved by or adopted from the prior art, and will not be elaborated here. Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A passive building exterior wall thermal insulation system, characterized in that, It includes a thermal insulation layer located on the outer side of the building exterior wall. The thermal insulation layer includes rock wool boards (1), and the rock wool boards (1) are evenly laid on the outer side of the building exterior wall and fixed to the building exterior wall through a number of anchor bolt units (2). The anchor bolt unit (2) includes a steel nail (201) at the end, an expansion shell (202) and a cover plate (203) connected to the steel nail (201). A first adhesive film (204) is connected between the expansion shell (202) and the rock wool board (1). An expansion plug board (3) is arranged in the joint between the rock wool boards (1). A second adhesive film (301) is connected between the expansion plug board (3) and the rock wool board (1).

2. The passive building exterior wall thermal insulation system according to claim 1, wherein A mortar paper surface layer (101) is arranged between the rock wool board (1) and the building exterior wall. A sealing coating (102) is coated on the outer side of the rock wool board (1), and a mortar paper surface layer (101) is arranged on the outer side of the sealing coating (102).

3. The passive building exterior wall thermal insulation system according to claim 1, characterized in that The expansion plug board (3) includes a rigid plate body (302), and the second adhesive film (301) is arranged at the end of the rigid plate body (302). A number of EPE sheets (303) are evenly distributed on both sides of the plate surface of the plate body (302).

4. The passive building exterior wall thermal insulation system according to claim 1, characterized in that, One end of the expansion shell (202) far from the steel nail (201) is in a circular plate shape, and a circular channel penetrating the steel nail (201) is opened in the middle. One end of the expansion shell (202) is connected to the steel nail (201), and the other end is movably connected to the cover plate (203).

5. The passive building exterior wall thermal insulation system according to claim 4, characterized in that, The cover plate (203) is a circular plate body, and external threads are arranged at the edge. A connecting ring (205) is fixedly arranged on the side of the expansion shell (202) far from the steel nail (201), and internal threads are arranged on the inner side of the connecting ring (205). The internal threads are in threaded fit connection with the external threads. A circle of protrusions (206) is arranged on the circular plate at one end of the expansion shell (202) far from the steel nail (201), and a circle of sealing rubber strips (207) is arranged on the side of the cover plate (203) close to the circular plate of the expansion shell (202). The sealing rubber strips (207) correspond to the protrusions (206). A circle of the first adhesive film (204) is fixedly connected to the outer side of the connecting ring (205).

6. The passive building exterior wall thermal insulation system according to claim 1, characterized in that, The thermal insulation layer includes corner rock wool boards (4). The upper and lower plates of the corner rock wool boards (4) are connected through a mutually matched concave opening (401) and convex opening (402). A rigid plastic layer (403) is vacuum-connected to the outer side of the corner rock wool board (4), and a number of anchor bolt holes (404) are opened in the rigid plastic layer (403). A third adhesive film (405) is arranged on the outer side of the joint between adjacent corner rock wool boards (4).

7. The passive building exterior wall thermal insulation system according to claim 6, characterized in that, A fourth adhesive film (501) is arranged at the joint between the rock wool board (1) and the window frame (5). The fourth adhesive film (501) is partially pasted on the window frame (5) and partially pasted on the connecting edge between the rock wool board (1) and the window frame (5).

8. The passive building exterior wall thermal insulation system according to claim 7, characterized in that, The first adhesive film (204), the second adhesive film (301), the third adhesive film (405), and the fourth adhesive film (501) are all airtight adhesive films.

9. The passive building exterior wall thermal insulation system according to claim 2, characterized in that, The airtight coating is polyester paint.

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