Anti-cracking external wall heat preservation structure

Abstract

The utility model discloses an anti -crack's external wall heat preservation structure, including the external wall body, and the external wall body outer end surface is equipped with the first heat preservation layer, and the first heat preservation layer is equipped with the connecting piece, and the connecting piece one end is fixedly connected with the external wall body outer end surface, and the other end is higher than the first heat preservation layer, and the connecting piece is jointly connected with the second heat preservation layer, and the second heat preservation layer is coated with waterproof layer on the side away from the first heat preservation layer, and through setting double -deck heat preservation layer, the first layer heat preservation layer and the second layer heat preservation layer combine and form the composite structure, and the probability of crack production is reduced through mutual cooperation, and still consolidates and prevents the first heat preservation layer from falling off through the reinforcing net.

Description

Technical Field

[0001] This utility model relates to a crack-resistant external wall insulation structure. Background Technology

[0002] As construction requirements become increasingly stringent, people are demanding more rigorous standards for wall insulation techniques. This involves researching and designing existing wall insulation layers, followed by innovative structural designs. However, current wall construction techniques are relatively traditional and simple, relying on layering and connecting to form a complete insulation layer, which doesn't provide optimal insulation. Furthermore, the conventional practice for external wall insulation is to directly apply a mortar layer to the exterior wall. If the mortar layer is of moderate thickness, applying it directly generally prevents cracking and peeling. However, if the mortar thickness exceeds 25 mm and the wall is not reinforced before application, the mortar layer may crack and peel, posing safety hazards and potentially causing economic losses. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a crack-resistant external wall insulation structure. By setting a double insulation layer, the first insulation layer and the second insulation layer are combined to form a composite structure. The two work together to reduce the probability of cracks. The first insulation layer is also reinforced with a reinforcing mesh to prevent it from falling off.

[0004] Therefore, the present invention adopts the following technical solution: a crack-resistant external wall insulation structure, including an external wall body, a first insulation layer provided on the outer end face of the external wall body, a connector provided through the first insulation layer, one end of the connector being fixedly connected to the outer end face of the external wall body, and the other end being higher than the first insulation layer, the connector being connected to a second insulation layer, and a waterproof layer being coated on the side of the second insulation layer away from the first insulation layer.

[0005] Furthermore, the first insulation layer includes a reinforcing mesh and insulation mortar. The reinforcing mesh is fixed and tensioned by a bracket on the outside of the outer wall. The reinforcing mesh has round holes for the connectors to pass through.

[0006] Furthermore, the bracket includes symmetrical grooves on the outer wall, a horizontal plate is embedded in the groove, a vertical rod is slidably connected to the horizontal plate, an extension rod is slidably connected to the upper and lower ends of the vertical rod, a clamping block is provided at the end of the extension rod, a horizontal telescopic member is provided between the left and right clamping blocks, and a plurality of hooks are provided on the horizontal telescopic member.

[0007] Furthermore, the bracket includes a frame rod fixed to the outer wall, the frame rod having holes and multiple hooks, the holes for fasteners to pass through and be fixedly connected to the outer wall, and the hooks for the reinforcing mesh edges to be hooked and fixed.

[0008] Furthermore, the reinforcing mesh is a fiber mesh or a wire mesh.

[0009] Furthermore, the connector includes a square plate with round holes at its four corners for fasteners to pass through and connect to the outer wall. A connecting sleeve is provided at the center of the square plate, and a blind hole is provided inside the connecting sleeve with a nut embedded in the opening of the blind hole.

[0010] Furthermore, the connecting sleeve has a threaded section on the outside, and a rotating disk is threadedly connected to the threaded section. The end face of the rotating disk facing the reinforcing mesh has spikes, which are used to restrict and fix the circular holes of the reinforcing mesh.

[0011] Furthermore, the second insulation layer includes multiple prefabricated insulation boards. Each prefabricated insulation board has a through hole for the threaded blind hole. The through hole has a stepped surface inside, and a waterproof sealing ring is embedded in the stepped surface. The prefabricated insulation board is fixed by bolts passing through the through hole and connecting to nuts.

[0012] Furthermore, the waterproof layer is a polyurethane waterproof coating.

[0013] Beneficial effects:

[0014] 1. This application uses a double-layer insulation layer. The first and second insulation layers are combined to form a composite structure, which works together to reduce the probability of cracks. The insulation mortar of the first insulation layer can fill the gaps on the wall surface and reduce the thermal bridging effect. The prefabricated insulation board of the second insulation layer has stable insulation performance and can form a continuous insulation barrier. The combination of the two significantly reduces the overall heat transfer coefficient of the exterior wall and improves the building's energy-saving effect.

[0015] 2. The first insulation layer of this application is provided with a reinforcing mesh as a reinforcing skeleton. The reinforcing mesh can convert local stress into overall dispersed force, avoiding cracks in the insulation layer due to local stress concentration. Then, the reinforcing mesh is fixed by the bracket to ensure that the reinforcing mesh is tightly bonded to the insulation mortar and to prevent the reinforcing mesh from shifting.

[0016] 3. A sealing ring is provided at the connection between the second insulation layer and the connector to prevent rainwater from seeping into the insulation layer through the gaps at the connection. Then, a waterproof layer is applied to the outside of the second insulation layer to further waterproof the wall and prevent moisture from eroding the exterior wall and causing problems such as dampness and mold. Attached Figure Description

[0017] Figure 1 Schematic diagram of crack-resistant external wall insulation structure;

[0018] Figure 2 This is a schematic diagram of the bracket in Example 1;

[0019] Figure 3 A schematic diagram for installing the reinforcement mesh;

[0020] Figure 4 This is a schematic diagram for installing the second insulation layer;

[0021] Figure 5 for Figure 2 Enlarged schematic diagram of the stretching of part A in the middle;

[0022] Figure 6 This is a side view of the lateral expansion joint;

[0023] Figure 7 This is a partial cross-sectional view of the connector;

[0024] Figure 8 This is a schematic diagram of the clamping block;

[0025] Figure 9 This is a schematic diagram of the bracket in Example 2.

[0026] Reference numerals: 1. Exterior wall; 2. First insulation layer; 21. Reinforcing mesh; 22. Insulating mortar; 3. Connector; 31. Square plate; 32. Connecting sleeve; 33. Blind hole; 34. Rotating disc; 35. Spike; 4. Second insulation layer; 41. Precast insulation board; 42. Through hole; 5. Waterproof layer; 6. Bracket; 7. Groove; 8. Horizontal plate; 9. Vertical rod; 10. Extension rod; 11. Clamping block; 12. Horizontal telescopic component; 13. Hook; 14. Frame rod. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] For reference Figures 1-9 As shown, this utility model provides a crack-resistant external wall insulation structure, including an external wall 1. A first insulation layer 2 is provided on the outer end face of the external wall 1. A connector 3 penetrates the first insulation layer 2, with one end of the connector 3 fixedly connected to the outer end face of the external wall 1 and the other end extending beyond the first insulation layer 2. A second insulation layer 4 is connected to the connector 3. A waterproof layer 5 is coated on the side of the second insulation layer 4 away from the first insulation layer 2. The first insulation layer 2 includes a reinforcing mesh 21 and insulating mortar 22. The reinforcing mesh 21 is a fiber mesh or wire mesh. The reinforcing mesh 21 serves as a reinforced skeleton for the first insulation layer 2, providing greater crack resistance and durability than traditional insulation layers with only insulating mortar 22. To fix the position of the reinforcing mesh 21 and ensure its flat and tensioned installation, this application provides a support 6. Two embodiments of the support 6 are provided, and one of the two embodiments can be selected according to the actual situation.

[0029] Specifically, see, for example Figures 1-8As shown, the bracket 6 of the first embodiment includes symmetrically opened grooves 7 on the outer wall 1. A horizontal plate 8 is embedded in the groove 7. The horizontal plate 8 is provided with a horizontal sliding groove and multiple positioning blind holes 33 are provided along the horizontal direction of the horizontal sliding groove. A vertical rod 9 is slidably connected to the horizontal sliding groove. The vertical rod 9 is provided with an insertion hole corresponding to the positioning blind hole 33. The insertion rod passes through the insertion hole and engages with the positioning blind hole 33 to realize the position of the vertical rod 9 on the horizontal plate 8. The upper and lower ends of the vertical rod 9 are slidably connected with extension rods 10. The length of the extension rod 10 is to adapt to the height of the outer wall 1 and maximize the full unfolding of the reinforcing mesh 21. The side walls of the vertical rod 9 and the extension rod 10 are provided with insertion holes. The length of the extension rod 10 is fixed by inserting the insertion rod into the corresponding insertion hole. The extension rod 10 has a clamping block 11 at its end, with a groove 7. A screw is located on the outer end face of the clamping block 11, with one end passing through the clamping block 11 and positioned within the groove 7. A stop block is located at the end of the screw. Rotation of the screw moves the stop block closer to the outer wall 1, thereby clamping the edge of the reinforcing mesh 21 between the stop block and the groove 7. The clamping block 11 secures the four corners of the reinforcing mesh 21. To ensure tension on the left and right edges of the reinforcing mesh 21, multiple hooks 13 are provided on the vertical rod 9 to hold the left and right edges of the reinforcing mesh 21 in place. The tension of the upper and lower edges of the reinforcing mesh 21 is achieved through the lateral expansion joint 12. The lateral expansion joint 12 includes a base plate, which slides left and right to connect to an extension plate. The other end of the extension plate is connected to a clamping block 11. The extension plate has a sliding cavity corresponding to the base plate. The sliding cavity has a slot on the end face away from the outer wall 1. The width of the slot is smaller than the width of the base plate to prevent the base plate from detaching from the slot. The base plate and the extension plate itself have multiple hooks 13 corresponding to the slot position to hook and fix the edges of the reinforcing mesh 21, so that the reinforcing mesh 21 is laid out in a rectangular shape. After the reinforcing mesh 21 is erected, the connector 3 is installed according to the round holes on the reinforcing mesh 21. After the connector 3 is fixed to the outer wall 1, the outer wall 1 is coated or sprayed or a template is erected and the thermal insulation mortar 22 is poured. The thermal insulation mortar 22 and the reinforcing mesh 21 form an integral whole and are connected to the contact surface of the outer wall 1, that is, the first layer of thermal insulation. The bracket 6 of Embodiment 1 can be adjusted to accommodate more outer walls 1 according to the area of ​​the outer wall 1, thereby improving practicality.

[0030] like Figure 9 As shown, in the second embodiment of the bracket 6, although the bracket 6 is relatively fixed and non-adjustable compared to the first embodiment, the cost is lower. Specifically, it includes a frame rod 14 fixed to the outer wall 1. The frame rod 14 has holes and multiple hooks 13. The holes allow fasteners to pass through and be fixedly connected to the outer wall 1. The fasteners are expansion bolts, screws, etc. The hooks 13 are used to fix the edge structure of the reinforcing mesh 21. Connectors 3 are installed according to the round holes on the reinforcing mesh 21. After the connectors 3 are fixed to the outer wall 1, thermal insulation mortar 22 is applied, sprayed, or poured by setting up templates on the outer wall 1. The thermal insulation mortar 22 forms an integral whole with the reinforcing mesh 21 and is connected to the contact surface of the outer wall 1, which is the first layer of insulation.

[0031] like Figure 7 As shown, in the two embodiments described above, after the connector 3 is installed, the connector 3 includes a square plate 31. The square plate 31 has round holes at its four corners, through which fasteners pass to connect to the outer wall 1. A connecting sleeve 32 is located at the center of the square plate 31. The connecting sleeve 32 has a blind hole 33, and a nut is embedded in the opening of the blind hole 33 for connecting the second insulation layer. The connecting sleeve 32 has a threaded section on its periphery, and a rotating disk 34 is threadedly connected to the threaded section. The end face of the rotating disk 34 facing the reinforcing mesh 21 has spikes 35. The spikes 35 are used to restrict and fix the edges of the round holes in the reinforcing mesh 21, preventing tearing and damage to the integrity of the reinforcing mesh 21 when applying, spraying, or pouring the insulation mortar 22 while setting up the template.

[0032] like Figure 4 As shown, after completing the first insulation layer, the blind holes 33 are cleaned to prevent debris from causing installation failure of the second insulation layer 4. The second insulation layer 4 includes multiple prefabricated insulation boards 41. Each prefabricated insulation board 41 has a through hole 42 corresponding to the threaded blind hole 33. The through hole 42 has a stepped surface inside, and a waterproof sealing ring is embedded in the stepped surface to prevent external rainwater from seeping in through the through hole 42 and causing the insulation board to mold. The prefabricated insulation board 41 is fixed by bolts passing through the through hole 42 and connecting with nuts. After fixing, a waterproof layer 5 is applied to the outer end face. The waterproof layer 5 is a polyurethane waterproof coating, which waterproofs the entire outer side of the second insulation layer 4 and reduces water seepage between the joints.

[0033] Working method: Prefabricated insulation panels 41 are prefabricated. A bracket 6 is installed on the outer wall 1. The bracket 6 can be selected according to the actual situation, either Embodiment 1 or Embodiment 2. After the bracket 6 is installed and adjusted, the reinforcing mesh 21 or fiber mesh cloth is installed on the bracket 6. After installation, insulation mortar 22 is poured to form the first insulation layer 2 with the reinforcing mesh 21 and the bracket 6. Before pouring the insulation mortar 22, connectors 3 are pre-embedded and the holes on the reinforcing mesh 21 or fiber mesh cloth are restricted and fixed by the connectors 3 to prevent damage caused by pulling when the insulation mortar 22 is poured. After the insulation mortar 22 is formed, the blind holes 33 of the connectors 3 are cleaned. After cleaning, the prefabricated insulation panels 41 are installed in sequence to form the second insulation layer 4. Then, a waterproof layer 5 is coated on the outside of the second insulation layer 4 to improve the waterproof effect on the outside of the second insulation layer 4 and avoid leakage at the joint.

Claims

1. A crack-resistant external wall insulation structure, comprising an external wall (1), characterized in that: The outer end face of the outer wall (1) is provided with a first insulation layer (2), and a connector (3) is provided through the first insulation layer (2). One end of the connector (3) is fixedly connected to the outer end face of the outer wall (1), and the other end is higher than the first insulation layer (2). The connector (3) is connected to a second insulation layer (4). The side of the second insulation layer (4) away from the first insulation layer (2) is coated with a waterproof layer (5).

2. The crack-resistant external wall insulation structure according to claim 1, characterized in that: The first insulation layer (2) includes a reinforcing mesh (21) and insulation mortar (22). The reinforcing mesh (21) is fixed and tensioned by a bracket (6) on the outside of the outer wall (1). The reinforcing mesh (21) has a round hole for the connector (3) to pass through.

3. The crack-resistant external wall insulation structure according to claim 2, characterized in that: The bracket (6) includes grooves (7) symmetrically opened on the outer wall (1). A horizontal plate (8) is embedded in the groove (7). A vertical rod (9) is slidably connected to the horizontal plate (8). An extension rod (10) is slidably connected to the upper and lower ends of the vertical rod (9). A clamping block (11) is provided at the end of the extension rod (10). A horizontal telescopic member (12) is provided between the left and right clamping blocks (11). A plurality of hooks (13) are provided on the horizontal telescopic member (12).

4. The crack-resistant external wall insulation structure according to claim 2, characterized in that: The bracket (6) includes a frame rod (14) fixed to the outer wall (1). The frame rod (14) has holes and multiple hooks (13). The holes allow fasteners to pass through and be fixedly connected to the outer wall (1). The hooks (13) are used to hook and fix the edge of the reinforcing mesh (21).

5. The crack-resistant external wall insulation structure according to claim 3 or 4, characterized in that: The reinforcing mesh (21) is a fiber mesh or a wire mesh.

6. The crack-resistant external wall insulation structure according to claim 5, characterized in that: The connector (3) includes a square plate (31), which has round holes at its four corners for fasteners to pass through and connect to the outer wall (1). A connecting sleeve (32) is provided in the center of the square plate (31), and a blind hole (33) is provided inside the connecting sleeve (32), with a nut embedded in the opening of the blind hole (33).

7. The crack-resistant external wall insulation structure according to claim 6, characterized in that: The connecting sleeve (32) has a threaded section on its periphery, and a rotating disk (34) is threadedly connected to the threaded section. The end face of the rotating disk (34) facing the reinforcing mesh (21) has a spike (35), which is used to restrict and fix the round hole of the reinforcing mesh (21).

8. The crack-resistant external wall insulation structure according to claim 7, characterized in that: The second insulation layer (4) includes multiple prefabricated insulation boards (41). Each prefabricated insulation board (41) has a through hole (42) corresponding to the threaded blind hole (33). The through hole (42) has a stepped surface inside. A waterproof sealing ring is embedded in the stepped surface. The prefabricated insulation board (41) is fixed by bolts passing through the through hole (42) and connecting with nuts.

9. The crack-resistant external wall insulation structure according to claim 8, characterized in that: The waterproof layer (5) is a polyurethane waterproof coating.

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