A building thermal insulation wall and a thermal insulation method for buildings

Abstract

The present invention relates to the technical field of thermal insulation walls, and discloses a building thermal insulation wall and a thermal insulation method for buildings, including a thermal insulation board, edge expansion nails and central expansion nails. A keel is fixedly arranged inside the thermal insulation board, and a plurality of buckles extending to the top of the thermal insulation board are installed on the keel, and the buckles are used to reinforce the anti-cracking layer. By setting the keel, edge expansion nails, central expansion nails, buckles and clamping components, when installing the thermal insulation board, the clamping of the clamping component and the central expansion nail is used to achieve the fastening of the center of the thermal insulation board. Compared with the method of directly fixing the thermal insulation board at the center by expansion nails, it avoids drilling and damaging the thermal insulation board, reduces the probability of water seepage of the thermal insulation board, improves safety, and the clamping component can also drive the buckles to fasten the anti-cracking layer on the thermal insulation board, improving the tightness of the connection between the anti-cracking layer and the thermal insulation board, avoiding subsequent falling off, and further improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation walls, and specifically to a building thermal insulation wall and a thermal insulation method for buildings. Background Art

[0002] Thermal insulation walls can effectively control the temperature difference between indoors and outdoors, improve the comfort of occupants, and can also save energy and reduce energy consumption. They are a common building energy-saving measure. The structure of existing thermal insulation walls mainly includes a thermal insulation layer, an anti-cracking layer, and a waterproof layer from the inside to the outside. The thermal insulation layer is fixed to the exterior wall by thermal insulation nails through thermal insulation boards. The anti-cracking layer is composed of sand ash and fiberglass mesh and is adhered to the thermal insulation board. The waterproof layer is composed of spraying materials or other decorative boards. There are certain problems in actual use: First, when the thermal insulation board is fixed with thermal insulation nails, in addition to drilling holes for installation in the connection gaps between adjacent thermal insulation boards, it is also necessary to drill holes in the center of the thermal insulation board. However, the sealing of the through holes on the thermal insulation board is difficult. When water seeps here, it is easy to enter the adhesion between the thermal insulation board and the wall surface, increasing the risk of the thermal insulation layer falling off and posing a great safety hazard. Second, the existing anti-cracking layer is adhered to the thermal insulation board with sand ash and is extremely easy to fall off during aging. The existing phenomenon of wall peeling is mainly manifested in the simultaneous peeling of the waterproof layer and the anti-cracking layer, further increasing the safety hazard. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a building thermal insulation wall and a thermal insulation method for buildings, which have the advantages of high safety, etc., and solve the problems that when fixing the thermal insulation board on the existing thermal insulation wall, holes need to be drilled on the thermal insulation board, resulting in reduced sealing performance, and at the same time, the connection effect between the anti-cracking layer and the thermal insulation board is poor, and the anti-cracking layer is easy to fall off.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A building thermal insulation wall includes a thermal insulation board, edge expansion nails, and a center expansion nail. A keel is fixedly arranged inside the thermal insulation board. A plurality of buckles extending to the top of the thermal insulation board are installed on the keel. The buckles are used to reinforce the anti-cracking layer. The center expansion nail is fixed on the wall surface and inserted into the keel. A clamping component is installed inside the keel. The clamping component is used to clamp the center expansion nail, and the clamping component is also used to drive the buckles to contract. The edge expansion nails are installed at the corners of the thermal insulation board. The edge expansion nails are used to fix the thermal insulation board and drive the clamping component to operate.

[0005] Before fixing the thermal insulation board, the center expansion nail is fixed on the wall surface in advance. When bonding and fixing the thermal insulation board, the center expansion nail is just inserted into the keel. After bonding and fixing the thermal insulation board, first lay the anti-cracking layer on the thermal insulation board, and then fix the edge expansion nails at the corners of the thermal insulation board. While the edge expansion nails further fix the thermal insulation board, they also drive the clamping component. When the clamping component operates, it clamps the center expansion nail, and when the clamping component operates, it also forces the buckles to contract, locking and reinforcing the anti-cracking layer.

[0006] Preferably, the insulation board is arranged as a square board, notch are provided at the corners of the insulation board, positioning grooves are formed in the top surfaces of the corners of the insulation board, the keel is arranged as a hollow cross, and the ends of the hollow cross extend to the respective corners of the insulation board. A positioning hole is formed in the center of the bottom of the insulation board, and the positioning hole extends to the middle of the hollow cross. A plurality of vertical pipes are further fixed to the top of the hollow cross, the top ends of the vertical pipes extend to the top surface of the insulation board, and the buckle is installed at the top ends of the vertical pipes.

[0007] Preferably, the central expansion nail includes a central expansion tube and a central bolt matching therewith. A screw hole is provided at the end of the central bolt, and a central screw is threadedly connected in the screw hole. One end of the central screw extends outside the screw hole and is fixed with a conical block.

[0008] Preferably, the edge expansion nail includes an edge expansion tube and an edge bolt matching therewith, and a groove shell is sleeved on the edge bolt.

[0009] Preferably, the engaging component includes a clamping rod and a vertical shaft arranged inside the hollow cross. The clamping rod is slidably connected with the inner wall of the hollow cross. One end of the clamping rod extends to the middle of the hollow cross and is provided with an inclined surface. The vertical shaft is fixed inside the hollow cross. A movable block is movably sleeved on the vertical shaft. A main spring is fixed between the bottom of the movable block and the inner wall of the hollow cross. The top of the movable block is fixedly connected with a contact rod. The contact rod penetrates through the hollow cross and extends into the positioning groove. A connecting rod is arranged between the movable block and the clamping rod, and two ends of the connecting rod are respectively hinged with the clamping rod and the movable block.

[0010] Preferably, the buckle includes a column inserted into the vertical pipe. Vertical strip-shaped grooves are formed in the side wall of the column. Vertical guiding grooves are provided on the inner walls of both sides of the vertical strip-shaped groove. A rotating shaft is arranged in the vertical strip-shaped groove. Two ends of the rotating shaft respectively extend into the two vertical guiding grooves. A clamping pin is fixed on the rotating shaft, and the length of the clamping pin is less than the height of the vertical strip-shaped groove.

[0011] Preferably, a secondary spring is fixed between the bottom end of the column and the cross-shaped hollow frame. A pull rope is further fixed on the clamping rod, and one end of the pull rope penetrates into the vertical pipe and is fixedly connected with the bottom end of the column.

[0012] Preferably, an installation shallow groove is provided at the edge of the insulation board. Both ends of the installation shallow groove are communicated with the positioning groove. A sealing strip is bonded in the installation shallow groove. The sealing strip includes two flat parts and a V-shaped telescopic part connected between the two flat parts.

[0013] Preferably, a clamping hole is provided at the end of the edge bolt. A shell cover covers the top of the groove shell. A plug rod is fixed at the center of the shell cover, and an end head matching the clamping hole is fixed at the end of the plug rod.

[0014] The present invention also discloses a thermal insulation method for buildings, which uses the above-mentioned building thermal insulation wall body.

[0015] Compared with the prior art, the present invention provides a building thermal insulation wall body and a thermal insulation method for buildings, which have the following beneficial effects:

[0016] 1. For this kind of building thermal insulation wall body and the thermal insulation method for buildings, by setting the keel, edge expansion nails, center expansion nails, buckles and clamping components, when installing the thermal insulation board, the clamping of the clamping component and the center expansion nail realizes the fastening of the center of the thermal insulation board. Compared with the method of directly fixing the thermal insulation board at the center by expansion nails, it avoids drilling and damaging the thermal insulation board, reduces the probability of water seepage of the thermal insulation board, improves safety, and the clamping component can also drive the buckle to fasten the anti-cracking layer on the thermal insulation board, improving the tightness of the connection between the anti-cracking layer and the thermal insulation board, avoiding subsequent peeling off, and further improving safety.

[0017] 2. For this kind of building thermal insulation wall body and the thermal insulation method for buildings, by setting the keel, it is beneficial to improve the compressive strength of the thermal insulation board and has a longer service life. By setting the clamping component, when the edge expansion nail is installed, it can drive one end of the clamping rod, making the end of the clamping rod move towards the center of the keel, and then making the end of the clamping rod engage with the conical block on the center expansion nail, improving the fastening effect at the center of the thermal insulation board. Compared with the prior art, there is no need to drill holes in the thermal insulation board, improving the sealing performance of the thermal insulation board.

[0018] 3. For this kind of building thermal insulation wall body and the thermal insulation method for buildings, by setting the sealing strip, it can further seal the joint of the thermal insulation board. Combining with the original polyurethane foam glue between the thermal insulation boards can achieve double sealing, further improving the waterproof performance. The V-shaped expansion part can also adapt to the expansion and contraction of the thermal insulation board. In addition, by setting the shell cover, the shell cover can be clamped and fixed on the edge expansion nail, which is beneficial to pressing and fixing the end of the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a building thermal insulation wall body of the present invention;

[0020] Figure 2 is of the present invention Figure 1 enlarged view of part A;

[0021] Figure 3 is an exploded view of the structure of the thermal insulation board of the present invention;

[0022] Figure 4 is a cross-sectional view of the thermal insulation board of the present invention;

[0023] Figure 5 is of the present invention Figure 4 enlarged view of part B;

[0024] Figure 6 For the present invention Figure 4 Enlarged view of part C;

[0025] Figure 7 Exploded view of the structure of the central expansion nail of the present invention;

[0026] Figure 8 Exploded view of the structure of the edge expansion nail of the present invention;

[0027] Figure 9 Exploded view of the structure of the buckle of the present invention.

[0028] In the figure: 1, insulation board; 101, installation shallow groove; 2, edge expansion nail; 21, edge expansion tube; 22, edge bolt; 23, groove shell; 24, card hole; 3, central expansion nail; 31, central expansion tube; 32, central bolt; 33, screw hole; 34, central screw rod; 35, conical block; 4, keel; 41, hollow cross; 42, vertical tube; 5, buckle; 51, column body; 52, vertical strip groove; 53, vertical guide groove; 54, rotating shaft; 55, card pin; 56, auxiliary spring; 57, pull rope; 6, engaging component; 61, card rod; 62, vertical shaft; 63, movable block; 64, main spring; 65, contact rod; 66, connecting rod; 7, notch; 8, positioning groove; 9, positioning hole; 10, sealing strip; 11, shell cover; 12, insertion rod; 13, end. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a building insulation wall and a building insulation method.

[0031] Embodiment 1: Please refer to Figures 1-4, a building thermal insulation wall, comprising a thermal insulation board 1, edge expansion nails 2 and a central expansion nail 3. A keel 4 is fixedly arranged inside the thermal insulation board 1. A plurality of buckles 5 extending to the top of the thermal insulation board 1 are installed on the keel 4. The buckles 5 are used to reinforce the anti-cracking layer. The central expansion nail 3 is fixed on the wall surface and inserted into the keel 4. A clamping component 6 is installed inside the keel 4. The clamping component 6 is used to clamp the central expansion nail 3, and the clamping component 6 is also used to drive the buckles 5 to contract. The edge expansion nails 2 are installed at the corners of the thermal insulation board 1. The edge expansion nails 2 are used to fix the thermal insulation board 1 and drive the clamping component 6 to operate;

[0032] Before the thermal insulation board 1 is fixed, the central expansion nail 3 is pre-fixed on the wall surface. When the thermal insulation board 1 is adhesively fixed, the central expansion nail 3 is just inserted into the keel 4. After the thermal insulation board 1 is adhesively fixed, first lay an anti-cracking layer on the thermal insulation board 1, and then fix the edge expansion nails 2 at the corners of the thermal insulation board 1. While the edge expansion nails 2 further fix the thermal insulation board 1, they also drive the clamping component 6. When the clamping component 6 operates, it clamps the central expansion nail 3, and when the clamping component operates, it also forces the buckles 5 to contract, locking and reinforcing the anti-cracking layer.

[0033] Among them, the keel 4 is made of plastic. When installing the central expansion nail 3 and the edge expansion nails 2, holes need to be drilled in the wall in advance. During actual installation, multiple thermal insulation boards 1 are arranged in an array. A telescopic gap of 3 mm is reserved between adjacent thermal insulation boards 1, and polyurethane foam glue is injected into the gap to achieve preliminary sealing. The anti-cracking layer includes a composite form of inner plaster - fiberglass mesh - outer plaster;

[0034] During use, first drill holes in the wall and install the central expansion nail 3. The position of the central expansion nail 3 corresponds to the center of the subsequent thermal insulation board 1 to be installed. Then, fix the thermal insulation board 1 on the wall surface through an adhesive coating. While fixing the thermal insulation board 1, the central expansion nail 3 can just be inserted into the center of the thermal insulation board 1 until it reaches the keel 4. After that, first apply an inner layer of plaster on the surface of the thermal insulation board 1, then lay the fiberglass mesh, and make the buckles 5 pass through the fiberglass mesh. Then, drill holes at the corners of the thermal insulation board 1 and install the edge expansion nails 2. The edge expansion nails 2 further fix the thermal insulation board 1, and at the same time, they also drive the clamping component 6. When the clamping component 6 operates, the keel 4 inside the thermal insulation board 1 is clamped and fixed with the central expansion nail 3. At this time, the thermal insulation board 1 is fixed not only by adhesion but also by the central expansion nail 3 and the edge expansion nails 2. In addition, when the clamping component 6 operates, it also drives the buckles 5 to contract towards the inside of the thermal insulation board 1. When the buckles 5 contract, they clamp the fiberglass mesh. The fiberglass mesh is fixed not only by adhering to the thermal insulation board 1 through the plaster but also by the buckles 5;

[0035] By setting the keel 4, edge expansion nails 2, central expansion nails 3, buckles 5 and engaging components 6, when installing the insulation board 1, the fastening of the center of the insulation board 1 is achieved through the engagement of the engaging component 6 and the central expansion nail 3. Compared with the method of directly fixing the insulation board 1 at the center by expansion nails, it avoids drilling and damaging the insulation board 1, reduces the probability of water seepage of the insulation board 1, improves safety, and the engaging component 6 can also drive the buckle 5 to fasten the anti-cracking layer on the insulation board 1, improving the tightness of the connection between the anti-cracking layer and the insulation board 1, avoiding subsequent detachment, and further improving safety.

[0036] Embodiment 2: Refer to Figures 1-4 , different from the above embodiment, the insulation board 1 is set as a square board, concave openings 7 are provided at the corners of the insulation board 1, positioning grooves 8 are opened on the top surface of the corners of the insulation board 1, the keel 4 is set as a hollow cross 41, and the ends of the hollow cross 41 respectively extend to the corners of the insulation board 1. A positioning hole 9 is opened at the center of the bottom of the insulation board 1, and the positioning hole 9 extends to the middle of the hollow cross 41. A plurality of vertical pipes 42 are further fixed on the top of the hollow cross 41, and the top ends of the vertical pipes 42 extend to the top surface of the insulation board 1. The buckle 5 is installed at the top end of the vertical pipe 42. The central expansion nail 3 includes a central expansion pipe 31 and a central bolt 32 matching with it. A screw hole 33 is provided at the end of the central bolt 32, and a central screw 34 is threadedly connected in the screw hole 33. One end of the central screw 34 extends outside the screw hole 33 and is fixed with a conical block 35. The edge expansion nail 2 includes an edge expansion pipe 21 and an edge bolt 22 matching with it. A groove shell 23 is sleeved on the edge bolt 22.

[0037] Among them, the groove shell 23 is set as a circular shell with an opening at the top. During installation, first drill a hole in the wall, insert the center expansion pipe into the hole, and then screw the central bolt 32 into the central expansion pipe 31 to achieve fixation. Subsequently, screw the central screw 34 into the screw hole 33 on the central bolt 32. When installing the insulation board 1, the positioning hole 9 corresponds to the position of the central expansion nail 3, and the conical block 35 is inserted into the keel 4 through the positioning hole 9. When installing the edge expansion nail 2, first drill a hole, then insert the edge expansion pipe 21 into the hole, then first sleeve the groove shell 23 on the edge bolt 22, and then screw the edge bolt 22 into the edge expansion pipe 21 to achieve fixation. At this time, the groove shell 23 just presses tightly in the positioning groove 8, thereby playing a pressing role on the insulation board 1;

[0038] By setting the keel 4, it is beneficial to improve the compressive strength of the insulation board 1 and has a longer service life. By setting the edge expansion nail 2, it is beneficial to fix the insulation board 1.

[0039] Embodiment 3, refer to Figures 3-7, different from the above embodiment, the locking assembly 6 includes a clamping rod 61 and a vertical shaft 62 arranged inside the hollow cross 41, the clamping rod 61 is slidably connected to the inner wall of the hollow cross 41, one end of the clamping rod 61 extends to the middle of the hollow cross 41 and is provided with an inclined surface, the vertical shaft 62 is fixed inside the hollow cross 41, a movable block 63 is movably sleeved on the vertical shaft 62, a main spring 64 is fixed between the bottom of the movable block 63 and the inner wall of the hollow cross 41, a touch rod 65 is fixedly connected to the top of the movable block 63, the touch rod 65 passes through the hollow cross 41 and extends into the positioning groove 8, a connecting rod 66 is provided between the movable block 63 and the clamping rod 61, and the two ends of the connecting rod 66 are hinged to the clamping rod 61 and the movable block 63 respectively.

[0040] Among them, the inclined surface at the end of the clamping rod 61 matches the side wall of the conical block 35. When the edge expansion nail 2 is installed, the groove shell 23 enters the positioning groove 8. The groove shell 23 contacts and presses the touch rod 65 downward at this time, causing the touch rod 65 to move downward. When the touch rod 65 moves downward, it drives the movable block 63 to move downward. When the movable block 63 moves downward, it compresses the main spring 64 and drives one end of the connecting rod 66 to move downward. When one end of the connecting rod 66 moves downward, the other end pushes the clamping rod 61 to slide. After the clamping rod 61 slides, the inclined surface at the end of the clamping rod 61 is close to the side wall of the conical block 35 on the central expansion tube 31. The multiple clamping rods 61 on the keel 4 are engaged with the conical block 35 at the same time, thereby achieving fixation of the center of the insulation board 1;

[0041] By setting up the locking assembly 6, when the edge expansion nail 2 is installed, one end of the locking rod 61 can be driven to move the end of the locking rod 61 toward the center of the keel 4, and then the end of the locking rod 61 is engaged with the conical block 35 on the center expansion nail 3, thereby improving the fastening effect at the center of the insulation board 1. Compared with the existing technology, there is no need to drill holes on the insulation board 1, thereby improving the sealing performance of the insulation board 1.

[0042] Example 4, see Figure 6 and Figure 9 , different from the above embodiment, the buckle 5 includes a column 51 inserted into the vertical tube 42, and the side wall of the column 51 is provided with a vertical strip groove 52, and the inner walls on both sides of the vertical strip groove 52 are provided with vertical guide grooves 53, and a rotating shaft 54 is provided in the vertical strip groove 52, and the two ends of the rotating shaft 54 extend into the two vertical guide grooves 53 respectively, and a card pin 55 is fixed on the rotating shaft 54, and the length of the card pin 55 is less than the height of the vertical strip groove 52, and a secondary spring 56 is fixed between the cross hollow frame at the bottom end of the column 51, and a pull rope 57 is also fixed on the clamping rod 61, and one end of the pull rope 57 passes through the vertical tube 42 and is fixedly connected to the bottom end of the column 51.

[0043] Among them, in the initial state, the eject pin 55 is vertical and stored in the vertical strip-shaped groove 52. When applying the crack-resistant layer on the insulation board 1, the fiberglass mesh cloth is passed through the column body, and then the eject pin 55 in the stored state is rotated into a horizontal state. The horizontal eject pin 55 is located at the top of the fiberglass mesh cloth. After that, when the engaging component 6 operates, the latch rod 61 moves, driving one end of the pull rope 57 to move, and the other end of the pull rope 57 pulls the column body, causing the column body 51 to move downward. When the column body 51 moves, it compresses the auxiliary spring 56 and also drives the eject pin 55 to move. Finally, the column body 51 is inserted into the round tube, and the horizontally placed eject pin 55 presses the fiberglass mesh cloth, thereby fixing the fiberglass mesh cloth.

[0044] By setting the buckle 5, when the engaging component 6 operates, it drives the buckle 5 to move. The horizontally placed eject pin 55 presses and fixes the fiberglass mesh cloth of the crack-resistant layer, improving the connection strength between the crack-resistant layer and the insulation board 1, and having higher safety.

[0045] Embodiment Five. Refer to Figures 4-8 , different from the above embodiment, an installation shallow groove 101 is provided at the edge of the insulation board 1. Both ends of the installation shallow groove 101 are connected to the positioning groove 8. A sealing strip 10 is bonded in the installation shallow groove 101. The sealing strip 10 includes two flat parts and a V-shaped telescopic part connected between the two flat parts. A card hole 24 is provided at the end of the edge bolt 22. The top of the groove shell 23 is covered with a shell cover 11. A plug rod 12 is fixed at the center of the shell cover 11. A head 13 matching the card hole 24 is fixed at the end of the plug rod 12.

[0046] Among them, when the insulation board 1 is laid, the sealing strip 10 is pasted at the joint between adjacent insulation boards 1. The V-shaped telescopic part corresponds to the gap between the two insulation boards 1, and the two flat parts are respectively pasted in the shallow grooves at the edges of the two insulation boards 1, thereby further sealing the joint. After the sealing strip 10 is fitted, the shell cover 11 is pressed against the end of the sealing strip 10, and at the same time, the head 13 on the shell cover 11 is inserted into the card hole 24 to achieve the snap-fitting and fixing of the shell cover 11.

[0047] By setting the sealing strip 10, the joint of the insulation board 1 can be further sealed. Combining with the original polyurethane foam glue between the insulation boards 1 can achieve double sealing, further improving the waterproof performance. The V-shaped telescopic part can also adapt to the expansion and contraction of the insulation board 1. In addition, by setting the shell cover 11, the shell cover 11 can be snap-fitted and fixed on the edge expansion nail 2, which is beneficial to pressing and fixing the end of the sealing strip 10.

[0048] Embodiment Six. A building insulation method uses a building insulation wall body in the above embodiment.

[0049] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A building insulation wall, comprising an insulation board, edge expansion nails and center expansion nails, characterized in that: A keel is fixedly provided inside the insulation board, and a plurality of clips extending to the top of the insulation board are installed on the keel, and the clips are used to reinforce the anti-cracking layer. The central expansion nail is fixed on the wall and inserted into the keel. A snap assembly is installed in the keel, and the snap assembly is used to snap the central expansion nail. The snap assembly is also used to drive the clip to retract. The edge expansion nails are installed at the corners of the insulation board, and the edge expansion nails are used to fix the insulation board and drive the snap assembly to operate; Before fixing the insulation board, fix the center expansion nail on the wall in advance. When gluing and fixing the insulation board, make sure that the center expansion nail is just inserted into the keel. After gluing and fixing the insulation board, first lay the anti-cracking layer on the insulation board, and then fix the edge expansion nails at the corners of the insulation board. The edge expansion nails further fix the insulation board while also driving the locking assembly. When the locking assembly is in operation, it engages the center expansion nail. When the locking assembly is in operation, it also forces the buckle to contract, locking and reinforcing the anti-cracking layer.

2. A building insulation wall according to claim 1, characterized in that: The insulation board is configured as a square board, the corners of the insulation board are all provided with notches, the top surface of the corners of the insulation board is provided with positioning grooves, the keel is configured as a hollow cross, the ends of the hollow cross extend to each corner of the insulation board respectively, a positioning hole is provided in the center of the bottom of the insulation board, the positioning hole extends to the middle of the hollow cross, a plurality of vertical pipes are also fixed to the top of the hollow cross, the top of the vertical pipes extends to the top surface of the insulation board, and the clips are installed on the top of the vertical pipes.

3. A building insulation wall according to claim 2, characterized in that: The central expansion nail includes a central expansion tube and a matching central bolt. A screw hole is provided at the end of the central bolt. A central screw is threadedly connected in the screw hole. One end of the central screw extends to the outside of the screw hole and is fixed with a conical block.

4. A building insulation wall according to claim 3, characterized in that: The edge expansion nail comprises an edge expansion tube and an edge bolt matched therewith, and a groove shell is sleeved on the edge bolt.

5. A building insulation wall according to claim 4, characterized in that: The locking assembly includes a locking rod and a vertical shaft arranged inside the hollow cross, the locking rod is slidably connected to the inner wall of the hollow cross, one end of the locking rod extends to the middle of the hollow cross and is provided with a slope, the vertical shaft is fixed inside the hollow cross, a movable block is movably sleeved on the vertical shaft, a main spring is fixed between the bottom of the movable block and the inner wall of the hollow cross, a touch rod is fixedly connected to the top of the movable block, the touch rod passes through the hollow cross and extends into the positioning groove, a connecting rod is provided between the movable block and the locking rod, and both ends of the connecting rod are hinged to the locking rod and the movable block respectively.

6. The building insulation wall according to claim 5, characterized in that: The buckle includes a column inserted in a vertical tube, a vertical groove is opened on the side wall of the column, vertical guide grooves are provided on the inner walls on both sides of the vertical groove, a rotating shaft is provided in the vertical groove, and the two ends of the rotating shaft extend into two vertical guide grooves respectively, a card pin is fixed on the rotating shaft, and the length of the card pin is less than the height of the vertical groove.

7. The building insulation wall according to claim 6, characterized in that: A secondary spring is fixed between the cross hollow frames at the bottom end of the column, and a pull rope is also fixed on the clamping rod. One end of the pull rope passes through the vertical pipe and is fixedly connected to the bottom end of the column.

8. The building insulation wall according to claim 7, characterized in that: The edge of the insulation board is provided with a shallow installation groove, both ends of which are connected to the positioning groove. A sealing strip is bonded in the shallow installation groove, and the sealing strip includes two flat parts and a V-shaped telescopic part connected between the two flat parts.

9. The building insulation wall according to claim 8, characterized in that: The end of the edge bolt is provided with a clamping hole, the top of the slot shell is covered with a shell cover, the center of the shell cover is fixed with an insertion rod, and the end of the insertion rod is fixed with an end head matching the clamping hole.

10. A thermal insulation method for a building, characterized in that: The heat-insulating method for a building uses a building heat-insulating wall as described in any one of claims 1 to 9.

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