Building thermal insulation outer wall and construction method thereof

Abstract

The building heat preservation outer wall comprises a main wall body with the hollow interior and the open top, a plurality of unit heat preservation parts are vertically stacked in the main wall body, each unit heat preservation part comprises a waterproof film which is rolled to be in a hollow bag shape and tightly attached to the side wall of an inner cavity of the main wall body, and the waterproof films are filled with expanded perlite particles; a cover plate used for covering an opening of the main wall body is placed on the top of the main wall body, a sealing wall body used for covering the cover plate is further arranged on the top of the main wall body, and the main wall body and the sealing wall body are both formed by pouring concrete. The method comprises the steps that S1, firstly, a main wall body is poured through concrete, and meanwhile, expanded perlite particles are wrapped with waterproof films to manufacture unit heat preservation pieces; s2, the manufactured unit heat preservation parts are stacked in the main wall body one by one and compacted; and S3, the opening in the top of the main wall body is covered with the cover plate, and then the sealed wall body is formed through secondary pouring, so that the main wall body and the sealed wall body are formed into a whole. The effect of improving the thermal insulation performance of the building external wall is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of housing construction, and in particular to a building thermal insulation exterior wall and a construction method thereof. Background Art

[0002] The exterior wall of a building is a very important part of the building structure, and it mainly plays the role of enclosure, heat preservation, insulation, waterproofing, decoration, etc. The design and construction of the exterior wall needs to take into account many factors such as the building's use environment, climatic conditions, structural form, etc. to ensure its safety, durability and beauty.

[0003] At present, the common building exterior wall insulation structures are mainly divided into three systems: external insulation, internal insulation and sandwich insulation. The external insulation system is usually composed of a base wall, an adhesive layer, an insulation layer and a finishing layer; the internal insulation system places the insulation material on the indoor side; the sandwich insulation adopts a double-layer wall with insulation material filled in the middle.

[0004] The related art discloses a sandwich-type thermal insulation exterior wall, which includes a hollow wall body cast by concrete, wherein the inner cavity of the wall body is filled with expanded perlite, which has good thermal insulation performance.

[0005] Cracks may appear in the wall due to erosion or vibration caused by wind and rain. Rainwater penetrates into the wall through the cracks and is absorbed by the expanded perlite. Some of the expanded perlite will settle after being damp, resulting in uneven density of the expanded perlite in various parts of the wall, thereby reducing the overall thermal insulation effect of the building's exterior wall, which is obviously insufficient. Summary of the invention

[0006] In order to improve the thermal insulation performance of a building exterior wall, the present application provides a building thermal insulation exterior wall and a construction method thereof.

[0007] In a first aspect, the present application provides a building thermal insulation exterior wall, which adopts the following technical solution: A building insulation exterior wall comprises a main wall which is hollow inside and open at the top, a plurality of unit insulation parts are vertically stacked inside the main wall, the unit insulation parts comprise a waterproof membrane which is rolled into a hollow bag shape and closely adheres to the inner cavity side wall of the main wall, the waterproof membrane is filled with expanded perlite particles; a cover plate for covering the open part of the main wall is placed on the top of the main wall, a sealing wall for covering the cover plate is also arranged on the top of the main wall, and the main wall and the sealing wall are both cast by concrete.

[0008] By adopting the above technical solution, the waterproof film wraps the expanded perlite particles in multiple layers, and the expanded perlite particles play the role of heat preservation. Even if cracks occur in the main wall or the sealing wall due to various factors, resulting in water vapor entering the main wall, the waterproof film can still keep the expanded perlite particles isolated from the water vapor, reducing the possibility of partial settlement of the expanded perlite particles due to moisture absorption, and improving the heat preservation performance of the building exterior wall.

[0009] Optionally, a drain pipe groove is vertically opened on the inner cavity side wall of the main wall, an air pipe is inserted and fitted in the drain pipe groove, the bottom end of the air pipe is closed, and the top end is used to communicate with an external inflating device. An elastic supporting bladder is placed between two vertically adjacent unit heat preservation components, and air holes corresponding to and communicating with the multiple elastic supporting bladders are opened between the inside and outside of the air pipe. When the top end of the air pipe is disconnected from the inflating device, a sealing plug is arranged at the top end of the air pipe.

[0010] By adopting the above technical solution, after connecting the top end of the air pipe to an external inflating device, the inflating device fills each elastic supporting bladder with air through the air pipe and each air hole. The elastic supporting bladder expands and supports the corresponding unit heat preservation component, and the unit heat preservation component is compressed more tightly under force, further improving the heat preservation performance.

[0011] Optionally, after inflation, the cross section of the elastic supporting bladder is conical and there is a spacing between the conical tip and the inner cavity side wall of the main wall.

[0012] By adopting the above technical solution, during the process of the unit heat preservation component being compressed and tightened under force, the tightness degree at the relative spacing between two vertically adjacent unit heat preservation components will also be further enhanced, reducing the possibility of heat loss from the gap between two adjacent unit heat preservation components.

[0013] Optionally, an inner pipe is vertically slidably fitted in the air pipe, the inner pipe is in close contact with the inner wall of the air pipe, a compression spring is supported between the bottom end of the inner pipe and the bottom end of the air pipe, and an air inlet flow channel for communicating the inflating device and each air hole is opened in the inner pipe.

[0014] By adopting the above technical solution, during inflation, the air inlet flow channel is in a communicating state with each air hole, and at this time the pressure ring is only affected by the self-weight of the inner pipe. After the elastic supporting bladder is inflated, the inner pipe is pushed downward so that the air inlet flow channel is staggered from each air hole, so that each elastic supporting bladder is in a closed state and does not communicate with each other, and then the sealing plug is installed on the top of the air pipe to achieve sealing. Thus, during use, even if an individual elastic supporting bladder is damaged and leaks air and fails, it will not affect the other intact elastic supporting bladders.

[0015] Optionally, the sealing plug is pressed tightly on the top end of the inner pipe and is lower than the top surface of the air pipe, and sealing glue is poured above the sealing plug in the air pipe.

[0016] By adopting the above technical solution, after the plug to be sealed is installed on the air pipe, sealing glue is poured onto the plug to be sealed, and the sealing glue can fill the installation gap between the air pipe and the plug to be sealed. After the sealing glue dries and cures, the possibility of gas leakage from the elastic support bladder can be further reduced.

[0017] Optionally, a support plate is further arranged at the bottom of the air pipe, which supports the bottom of the lowest unit heat preservation member.

[0018] By adopting the above technical solution, the support plate can play a role in supporting the unit heat preservation member. During installation, the unit heat preservation members are stacked step by step and gradually enter the main wall body. Therefore, the support plate cooperates with manual pressing of the unit heat preservation members to realize the installation of each unit heat preservation member against the main wall body.

[0019] Optionally, a plurality of indicating edge pieces are integrally formed on the cover plate, and the indicating edge pieces extend from the integral molding of the main wall body and the sealing wall body to the outside.

[0020] By adopting the above technical solution, the cutting machine cuts along a plurality of indicating edge pieces, so that the sealing wall body and the main wall body can be cut and separated, and thus the heat preservation structure in the main wall body can be repaired or recycled for the second time, which has the advantages of being green, environmentally friendly, and recyclable.

[0021] In a second aspect, the present application provides a construction method for a building heat preservation outer wall, adopting the following technical solution: A construction method for a building heat preservation outer wall includes the following steps: S1. First, pour the main wall body with concrete, and at the same time, use a waterproof film to wrap expanded perlite particles to make unit heat preservation members; S2. Stack the made unit heat preservation members one by one in the main wall body and compact them; S3. Cover the cover plate on the open mouth at the top of the main wall body, and then pour the sealing wall body for the second time, so that the main wall body and the sealing wall body are formed integrally.

[0022] By adopting the above technical solution, even if cracks occur in the main wall body or the sealing wall body due to various factors, resulting in water vapor entering the main wall body, the waterproof film can keep the expanded perlite particles isolated from the water vapor, reducing the possibility of partial expanded perlite particles getting damp and settling, and improving the heat preservation performance of the building outer wall.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The waterproof film wraps the expanded perlite particles in multiple layers, and the expanded perlite particles play a heat preservation role. Even if cracks occur in the main wall body or the sealing wall body due to various factors, resulting in water vapor entering the main wall body, the waterproof film can keep the expanded perlite particles isolated from the water vapor, reducing the possibility of partial expanded perlite particles getting damp and settling, and improving the heat preservation performance of the building outer wall; 2. During inflation, the air inlet flow channel remains connected to each air hole, and at this time, the pressing ring is only affected by the self-weight of the inner tube. After the elastic support bladder is inflated, the inner tube is pushed downward so that the air inlet flow channel is offset from each air hole. In this way, each elastic support bladder is in a closed state and does not communicate with each other. Then, the sealing plug is installed at the top of the air tube to achieve sealing. Thus, during use, even if an individual elastic support bladder is damaged and leaks air and fails, it will not affect the remaining intact elastic support bladders. Description of the Drawings

[0024] Figure 1 is a cross-sectional view of an embodiment of the present application.

[0025] Figure 2 is an exploded view among the sealing wall, the main wall, and the cover plate in the embodiment of the present application.

[0026] Description of the reference numerals: 1, main wall; 101, pipe row groove; 2, unit heat preservation member; 21, waterproof film; 22, expanded perlite particles; 3, cover plate; 4, sealing wall; 5, air tube; 51, air hole; 6, elastic support bladder; 7, sealing plug; 8, inner tube; 81, air inlet flow channel; 9, compression spring; 10, sealing glue; 11, support plate; 12, edge indicating piece. Detailed Description of the Embodiment

[0027] The following Figure 1-2 further elaborates on the present application in detail.

[0028] Embodiment 1 Embodiment 1 of the present application discloses a building heat-insulating exterior wall.

[0029] Referring Figure 1 , the building heat-insulating exterior wall includes a main wall 1 with a hollow interior and an open top. A cover plate 3 for covering its open top is placed on the top of the main wall 1. A sealing wall 4 for covering the cover plate 3 is also integrally formed on the top of the main wall 1. Both the main wall 1 and the sealing wall 4 are formed by concrete casting.

[0030] Referring Figure 1 , a plurality of unit heat preservation members 2 are vertically stacked in the main wall 1. The unit heat preservation member 2 includes a waterproof film 21 rolled into a hollow sac shape and closely attached to the inner cavity side wall of the main wall 1. Expanded perlite particles 22 are filled in the waterproof film 21, and the expanded perlite particles 22 endow the building exterior wall with heat-insulating performance.

[0031] Referring Figure 1 , since the expanded perlite is covered by the waterproof film 21, even if the main wall 1 or the sealing wall 4 cracks due to various factors, the water vapor penetrating into the main wall 1 will not come into contact with the expanded perlite, reducing the possibility of the expanded perlite getting damp and resulting in a decline in heat-insulating performance.

[0032] Refer to Figure 1 and Figure 2 , a drain pipe groove 101 is vertically opened on the inner cavity side wall of the main wall body 1, an air pipe 5 is inserted and fitted in the drain pipe groove 101, the bottom end of the air pipe 5 is closed and the top end is open. A plurality of air holes 51 are opened between the inner and outer side walls of the air pipe 5, and the plurality of air holes 51 are arranged at intervals vertically.

[0033] Refer to Figure 1 , an elastic top support bladder 6 is placed between two adjacent unit heat preservation parts 2 vertically. The elastic top support bladder 6 is hollow inside, and one elastic top support bladder 6 corresponds to and communicates with one air hole 51.

[0034] Refer to Figure 1 , an inner pipe 8 is slidably fitted vertically in the air pipe 5. The inner pipe 8 is in close contact with the inner wall of the air pipe 5. A compression spring 9 is propped between the bottom end of the inner pipe 8 and the bottom end of the air pipe 5. An air inlet flow channel 81 is opened in the inner pipe 8, and the air inlet flow channel 81 is used to conduct the external inflation device and each air hole 51.

[0035] Refer to Figure 1 , after all the unit heat preservation parts 2 are all installed in the main wall body 1, the worker covers the cover plate 3 on the main wall body 1, and then continues to pour concrete on the top of the main wall body 1, so that the sealing wall body 4 is formed integrally with the main wall body 1.

[0036] Refer to Figure 1 , after the sealing wall body 4 is air-dried and cured, the air inlet flow channel 81 of the inner pipe 8 is communicated with the external inflating part. At this time, the air inlet flow channel 81 and the air holes 51 are in a conducting state, and air is inflated into each elastic top support bladder 6 in this way.

[0037] Refer to Figure 1 , the elastic top support bladder 6 expands and props the corresponding unit heat preservation part 2, and the unit heat preservation part 2 is compressed more tightly under force, further improving the heat preservation performance.

[0038] Refer to Figure 1 , after the inflation is completed, first push the inner pipe 8 downward to squeeze the compression spring 9, so that the air inlet flow channel 81 and each air hole 51 are all staggered, and each elastic top support bladder 6 is in a closed state and does not communicate with each other.

[0039] At this time, disconnect the inflation device and the air inlet flow channel 81, and then a sealing plug 7 is screwed and connected at a position above the inner pipe 8 in the air pipe 5. The sealing plug 7 plays a pressing role in propping the inner pipe 8.

[0040] Since the top end of the sealing plug 7 is lower than the top surface of the air pipe 5, sealing glue 10 is poured above the sealing plug 7 in the air pipe 5. The sealing glue 10 can flow into the installation gap between the sealing plug 7 and the air pipe 5. After the sealing glue 10 is air-dried and cured, the top end of the air pipe 5 can be completely sealed, further reducing the possibility of air leakage.

[0041] Since the elastic support capsules 6 are not connected to each other, even if an individual elastic support capsule 6 ages and breaks during long-term use, the remaining intact elastic support capsules 6 will not be affected.

[0042] Refer to Figure 1 , after inflation, the cross-section of the elastic support capsule 6 is conical and there is a spacing between the tip of the cone and the inner cavity side wall of the main wall 1. During the process of the unit heat preservation member 2 being stressed and becoming compact, the tightness at the relative spacing between two vertically adjacent unit heat preservation members 2 will also be further enhanced, reducing the possibility of heat loss from the gaps between two adjacent unit heat preservation members 2.

[0043] Refer to Figure 1 , a support plate 11 supporting the bottom of the lowest unit heat preservation member 2 is also welded to the bottom of the air pipe 5. During installation, the worker first places a unit heat preservation member 2 on the support plate 11, then installs the elastic support capsule 6 above it, and then inserts it downward by a certain depth. Repeating the above operations, each unit heat preservation member 2 and each elastic support capsule 6 are gradually installed into the main wall 1.

[0044] Refer to Figure 1 and Figure 2 , a plurality of indicating edge pieces 12 are integrally formed at circumferential intervals on the cover plate 3. The indicating edge pieces 12 extend from the integral molding of the main wall 1 and the sealing wall 4 to the outside. In this way, when the heat preservation structure inside the building exterior wall is damaged, the worker cuts along the connection line of the plurality of indicating edge pieces 12, thereby cutting open the main wall 1 and the sealing wall 4, and then the heat preservation structure can be repaired or recycled, having the effects of energy conservation and environmental protection.

[0045] The implementation principle of Embodiment 1 is: First, the main wall 1 is cast with concrete, and at the same time, the unit heat preservation member 2 is made by wrapping expanded perlite particles 22 with a waterproof film 21; the support plate 11 is welded to the bottom end of the air pipe 5.

[0046] The support plate 11 is first placed at the open mouth at the top of the main wall 1. The worker first places a unit heat preservation member 2 on the support plate 11, then installs the elastic support capsule 6 above it, and then inserts the unit heat preservation member 2 downward into the main wall 1, and the air pipe 5 is inserted into the row pipe groove 101; repeating the above operations, each unit heat preservation member 2 and each elastic support capsule 6 are gradually installed into the main wall 1. After all are installed, each unit heat preservation member 2 is compacted.

[0047] The cover plate 3 is covered on the open mouth at the top of the main wall 1, and then the sealing wall 4 is cast for the second time, so that the main wall 1 and the sealing wall 4 are formed integrally.

[0048] After the wall body 4 to be sealed is air-dried and solidified, the air inlet flow channel 81 on the inner tube 8 is communicated with an external inflating member and inserted into the air tube 5 until the air inlet flow channel 81 and the air holes 51 are in a conducting state, so as to inflate air into each elastic supporting bladder 6, and the elastic supporting bladder 6 expands and supports the corresponding unit heat preservation member 2.

[0049] After the inflation is completed, first push the inner tube 8 downward to squeeze the compression spring 9, so that the air inlet flow channel 81 and each air hole 51 are staggered, then disconnect the inflating device and the air inlet flow channel 81, and then screw the sealing plug 7 tightly at the position above the inner tube 8 in the air tube 5, and pour the sealing glue 10 above the sealing plug 7. After the sealing glue 10 is air-dried and solidified, continue to pour concrete so that the top end of the air tube 5 is completely hidden in the concrete.

[0050] Embodiment 2 Embodiment 2 of the present application discloses a construction method for a building heat-insulating exterior wall, including the following steps:.

[0051] S1. First, pour the main wall body 1 with concrete, and at the same time, use the waterproof film 21 to wrap the expanded perlite particles 22 to make the unit heat preservation member 2; the support plate 11 is welded to the bottom end of the air tube 5.

[0052] S2. Place the support plate 11 at the open mouth at the top of the main wall body 1 first. The worker first places a unit heat preservation member 2 on the support plate 11, then installs the elastic supporting bladder 6 above it, and then inserts the unit heat preservation member 2 downward into the main wall body 1, and the air tube 5 is inserted into the row pipe groove 101; repeat the above operation, and each unit heat preservation member 2 and each elastic supporting bladder 6 are gradually installed into the main wall body 1. After all are installed, compact each unit heat preservation member 2.

[0053] S3. Cover the cover plate 3 on the open mouth at the top of the main wall body 1, and then pour the sealing wall body 4 for the second time, so that the main wall body 1 and the sealing wall body 4 are formed into one body.

[0054] S4. After the wall body 4 to be sealed is air-dried and solidified, the air inlet flow channel 81 on the inner tube 8 is communicated with an external inflating member and inserted into the air tube 5 until the air inlet flow channel 81 and the air holes 51 are in a conducting state, so as to inflate air into each elastic supporting bladder 6, and the elastic supporting bladder 6 expands and supports the corresponding unit heat preservation member 2.

[0055] S5. After the inflation is completed, first push the inner tube 8 downward to squeeze the compression spring 9, so that the air inlet flow channel 81 and each air hole 51 are staggered, then disconnect the inflating device and the air inlet flow channel 81, and then screw the sealing plug 7 tightly at the position above the inner tube 8 in the air tube 5, and pour the sealing glue 10 above the sealing plug 7. After the sealing glue 10 is air-dried and solidified, continue to pour concrete so that the top end of the air tube 5 is completely hidden in the concrete.

[0056] The above are all preferred embodiments of this application, and do not limit the protection scope of this application. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An exterior wall for building thermal insulation, characterized in that: It includes a main wall body (1) with a hollow interior and an open top. A plurality of unit thermal insulation members (2) are vertically stacked within the main wall body (1). The unit thermal insulation member (2) includes a waterproof membrane (21) rolled into a hollow sac shape and closely attached to the inner cavity side wall of the main wall body (1). Expanded perlite particles (22) are filled within the waterproof membrane (21). A cover plate (3) for covering the open portion is placed at the top of the main wall body (1). A sealing wall body (4) for covering the cover plate (3) is further arranged at the top of the main wall body (1). Both the main wall body (1) and the sealing wall body (4) are formed by concrete casting.

2. The building thermal insulation exterior wall according to claim 1, wherein: A pipe slot (101) is vertically opened on the inner cavity side wall of the main wall body (1). An air pipe (5) is inserted and fitted within the pipe slot (101). The bottom end of the air pipe (5) is closed, and the top end is used to communicate with an external inflation device. An elastic top support sac (6) is placed between two vertically adjacent unit thermal insulation members (2). Air holes (51) corresponding to and communicating with a plurality of elastic top support sacs (6) are opened between the inside and outside of the air pipe (5). When the top end of the air pipe (5) is disconnected from the inflation device, a sealing plug (7) is arranged at the top end of the air pipe (5).

3. The building thermal insulation exterior wall according to claim 2, characterized in that: After inflation is completed, the cross-section of the elastic top support sac (6) is conical, and there is a spacing between the conical tip and the inner cavity side wall of the main wall body (1).

4. The building thermal insulation exterior wall according to claim 2, characterized in that: An inner pipe (8) is vertically slidably fitted within the air pipe (5). The inner pipe (8) is closely attached to the inner wall of the air pipe (5). A compression spring (9) is braced between the bottom end of the inner pipe (8) and the bottom end of the air pipe (5). An air inlet flow channel (81) for conducting the inflation device and each air hole (51) is opened within the inner pipe (8).

5. The building thermal insulation exterior wall according to claim 4, wherein: The sealing plug (7) is pressed tightly against the top end of the inner pipe (8) and is lower than the top surface of the air pipe (5). Sealing glue (10) is poured above the sealing plug (7) within the air pipe (5).

6. The building thermal insulation exterior wall according to claim 2, characterized in that: A support plate (11) that supports the bottom of the lowermost unit thermal insulation member (2) is further arranged at the bottom of the air pipe (5).

7. The building thermal insulation exterior wall according to claim 1, characterized in that: A plurality of indicating edge pieces (12) are integrally formed on the cover plate (3). The indicating edge pieces (12) extend from the integral molding of the main wall body (1) and the sealing wall body (4) to the outside.

8. A construction method for the building thermal insulation exterior wall according to any one of claims 1-7, characterized in that: It includes the following steps: S1. First, the main wall body (1) is cast with concrete. At the same time, the unit thermal insulation member (2) is made by wrapping expanded perlite particles (22) with a waterproof membrane (21). S2. The made unit thermal insulation members (2) are stacked one by one within the main wall body (1) and compacted. S3. The cover plate (3) is covered on the open portion at the top of the main wall body (1). Subsequently, the sealing wall body (4) is cast for the second time, so that the main wall body (1) and the sealing wall body (4) are formed integrally.

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