Outer wall external thermal insulation reinforcement construction device and method

Abstract

The device comprises an outer wall inner side pre-embedded screw rod which is in a slender rod shape, one end of the outer wall inner side pre-embedded screw rod extends out of an outer wall structure wall body, the middle of the outer wall inner side pre-embedded screw rod is fixedly connected with a reinforcing mesh embedded in the outer wall structure wall body, and the other end of the outer wall inner side pre-embedded screw rod is hinged to a foldable built-in internal thread pre-embedded part; the foldable built-in internal-thread embedded part is integrally columnar and is provided with an embedded part main body with internal threads, a limiting structure and a locking device, and the foldable built-in internal-thread embedded part penetrates through an external heat preservation plate to be connected with a round fixing piece with a nut and an external-thread screw assembly in a screwed mode in the unfolded state. The limiting structure is arranged at the hinged position of the embedded part body and the embedded screw on the inner side of the outer wall and limits and fixes the embedded part body in the unfolded state. The water stop ring is annular and is tightly arranged on the portion, between the reinforcing mesh and the foldable built-in internal thread embedded part, of the outer wall inner side embedded screw in a sleeving mode. The problems that a fixing piece causes water seepage of a wall body, a formwork cannot be reused, and a heat preservation plate falls off are solved.

Description

Technical Field

[0001] The present invention belongs to the field of exterior wall external insulation layer construction, and more specifically, relates to an exterior wall external insulation reinforcement construction device and method. Background Art

[0002] As global energy issues become increasingly prominent, building energy conservation has become a key issue in the field of modern architecture. Among building energy conservation measures, exterior wall insulation technology plays a vital role in reducing building energy consumption and improving indoor comfort. The exterior wall insulation system aims to achieve energy conservation goals by setting an insulation layer on the exterior wall of the building to reduce the exchange of indoor and outdoor heat. At present, exterior wall insulation technology has developed from traditional on-site bonding construction to a new type of insulation and decorative integrated board. The latter is produced through an assembly line and integrates multiple functions such as insulation, waterproofing, and finishing. It greatly meets the current demand for energy conservation in housing construction and has become the preferred material for exterior wall insulation of industrial and civil buildings. It is also the first choice for energy-saving renovation of existing buildings.

[0003] The traditional way to add insulation is to apply cement mortar on the outside of the foundation wall, and then use bonding mortar to post the insulation layer on the foundation wall. However, bonding mortar itself has many limitations. As the service life increases, the bonding mortar will inevitably age. At the same time, the building will experience repeated changes in temperature during long-term use, and this environmental factor will seriously affect the structural stability of the bonding mortar. Under the combined effect of these factors, the structural force of the bonding mortar gradually decreases, resulting in serious problems with the insulation layer and its outer decorative layer. Under the action of its own gravity and external forces such as wind, the insulation layer is very easy to peel off from the wall, which not only poses a huge threat to the safety of people and property around the building, but also once this happens, the later repair of the wall is extremely difficult and costly. In addition, the decorative layer is formed by brushing the sticky decorative material on the outer wall of the insulation layer. The bonding between it and the insulation layer will also weaken over time, and there is also a risk of peeling off from the outer wall of the insulation layer.

[0004] There are a variety of technical solutions related to exterior wall insulation reinforcement in the prior art. One solution solves the problem that the insulation layer reinforced with anchors is inconvenient to dismantle and repair, but there is a risk of rainwater seeping into the wall along the screws and the loose connection of the limiting components causing the insulation board to fall off; another solution overcomes the problem of peeling and falling off of the insulation layer and the decorative layer, but there is a risk of rainwater seeping into the inner wall decorative layer due to the reinforcement with screws inserted in the wall, causing it to be damaged and moldy; there is also a solution that has the advantages of simple construction, fast installation and disassembly, reduced exterior wall procedures, no exterior wall seepage, cancellation of external scaffolding, removable bolts, quality assurance and cost reduction, but the welding connection between the embedded parts and the connecting parts may ignite the insulation board, and there is a risk of loosening of the embedded steel bars embedded in the flexible insulation board. Summary of the invention

[0005] In summary, the existing exterior wall insulation reinforcement technologies all have defects to varying degrees, and there is an urgent need for a new type of exterior wall insulation reinforcement construction device and method that can effectively solve the above problems. The present invention is an innovative solution to these deficiencies. By pre-embedded waterproof connectors in the wall, the external insulation is fixed by an external screw rod, eliminating leakage and "fake nailing" phenomena.

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides an external wall thermal insulation reinforcement construction device, characterized in that it includes: a pre-embedded screw rod inside the external wall, a foldable internally embedded internal threaded pre-embedded part and a water stop ring;

[0007] The embedded screw rod inside the outer wall is in the form of an elongated rod-shaped structure as a whole, one end of which extends out of the outer wall structure, the middle part of which is fixedly connected to the steel mesh embedded in the outer wall structure, and the other end of which is hinged to the foldable embedded internal threaded embedded part;

[0008] The foldable embedded part with internal thread comprises an embedded part body which is in a columnar structure and provided with internal thread, a limiting structure and a locking device; one end of the embedded part body is hinged to the embedded screw rod inside the outer wall, and the other end of the embedded part body can be rotated outward and unfolded, and penetrates the external insulation board and is connected with the locking device arranged on the outer side of the insulation in the unfolded state; the locking device is provided with an external thread matching the internal thread of the embedded part body, and the insulation board is fixed to the wall in the tightened state; the limiting structure is arranged at the hinged joint between the embedded part body and the embedded screw rod inside the outer wall, and plays a limiting and fixing role on the embedded part body when the embedded part body is in the unfolded state;

[0009] The water stop ring is sleeved on the inner embedded screw of the outer wall between the steel mesh and the foldable internally-threaded embedded part; the water stop ring is an annular structure, and its inner diameter is matched with the outer diameter of the inner embedded screw of the outer wall.

[0010] Furthermore, the embedded component body and the embedded screw rod on the inner side of the exterior wall are hingedly connected via a rotation axis disposed at the junction of the two (for example, the rotation axis may be a pin).

[0011] Furthermore, the rotating shaft is a cylindrical structure, and is arranged inside the foldable internal internal thread embedded part as a rotating shaft, and its two ends respectively extend through the surface of the foldable internal internal thread embedded part, and are made of high-strength metal material.

[0012] Furthermore, the locking device includes a circular fixing plate containing a nut and an external screw; the circular fixing plate containing a nut can be sleeved on the embedded part body, the external screw passes through the circular fixing plate and the nut on the circular fixing plate, and is matched and connected with the internal thread of the embedded part body.

[0013] Furthermore, each square of the steel mesh is connected to no less than 6 pre-embedded screws on the inner side of the exterior wall.

[0014] Furthermore, the steel mesh is provided with at least one fixing screw above and below each pre-embedded screw on the inner side of each connected exterior wall.

[0015] Furthermore, the water stop ring is made of a water-resistant and corrosion-resistant material and has elasticity and flexibility.

[0016] Furthermore, the limiting structure is a locking slot structure; the locking slot structure is in a polygonal geometric shape, a protruding structure is arranged on at least one side thereof, and the foldable built-in internal thread embedded part is provided with a slot cooperating with the protruding structure on its corresponding side.

[0017] The present invention also provides an external wall thermal insulation reinforcement construction method, comprising the following steps:

[0018] S1. Tie the steel mesh to the steel bars of the exterior wall structure with wire, fix the embedded screws on the inner side of the exterior wall to the steel mesh according to the requirement of no less than 6 per square meter of the exterior insulation specification, and adjust the positioning by rotating the adjustable fixing screws, changing their position on the steel mesh and adjusting their extension length;

[0019] S2. Keep the foldable internal internal thread embedded part in a folded vertical state, and seal the internal structure of the rotation node at the hinge; the sealed material is easy to disassemble, and no damage is caused to the foldable internal internal thread embedded part during the disassembly process;

[0020] S3. Carry out concrete pouring, formwork removal and maintenance of the external wall structure reinforcement formwork;

[0021] S4. Use a tool to rotate the foldable internal thread embedded part outward to straighten it and clean the sealing material on its surface;

[0022] S5. Install the external insulation board so that it is penetrated by the foldable internal internal thread embedded part;

[0023] S6. On the outside of the insulation board, a circular fixing plate with a nut and an external screw assembly are matched with the internal thread of the foldable internal thread embedded part to tighten and reinforce it.

[0024] Furthermore, the embedded screws in S1 must be provided at the corners of the exterior wall structure.

[0025] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0026] 1. The exterior wall insulation reinforcement construction device of the present invention effectively solves the problem of water seepage caused by rainwater penetrating along fixing parts (such as screws, etc.) during the exterior wall insulation construction reinforcement process by pre-embedding water-stop connectors, avoiding the problem of damage to the wall insulation performance, internal structure and interior wall decoration layer due to water seepage in the prior art, ensuring the stability and durability of the exterior wall insulation system, while ensuring the overall quality and safety of the building.

[0027] 2. The exterior wall insulation reinforcement construction device of the present invention adopts the method of folding embedded parts. After the embedded part body is folded, there is no need to drill holes in the template used for exterior wall pouring, which solves the problem of too dense holes in the template and the template being damaged and unable to be reused after demolding in the prior art. Secondly, when the external insulation components have quality problems such as aging and damage in the later stage, the components can be rotated in reverse to loosen the insulation board and replace it, which effectively solves the problem of difficulty in repairing and replacing the insulation board in the prior art.

[0028] 3. The exterior wall insulation reinforcement construction device of the present invention, through the folding bottom limited locking device and the overall structural design, the main body is fully anchored in the concrete, avoiding the occurrence of loosening, thereby ensuring the quality of external insulation fixing construction, strengthening the fixing effect of prefabricated insulation panels, avoiding quality problems such as hollowing, cracking, and falling off in external insulation projects, and effectively ensuring the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of a foldable embedded internal thread embedded part in a preferred embodiment of the present invention in a folded state;

[0030] Figure 2 This is a cross-sectional view of a foldable embedded internal thread embedded part in a preferred embodiment of the present invention in an unfolded state;

[0031] Figure 3 is a plan view of a preferred embodiment of the present invention;

[0032] Figure 4 yes Figure 1 A schematic diagram of the structure of the foldable embedded internal thread embedded part in the unfolded state;

[0033] Figure 5 yes Figure 3 A magnified view of the B node in the preferred embodiment

[0034] Figure 6 It is a schematic diagram of the process of the external wall external insulation reinforcement construction method in an embodiment of the present invention;

[0035] In all the drawings, the same figure marks represent the same technical features, specifically: 1-water stop ring; 2-foldable built-in internal thread embedded part; 21-embedded part body, 3-exterior wall structure wall; 4-embedded screw on the inside of the exterior wall; 5-adjustable fixing screw; 6-steel mesh; 8-limiting structure; 9-rotating axis; 10-circular fixing plate with nut; 11-external thread screw; 12-protruding structure; 13-slot; 14-insulation board. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Please refer to Figure 1 In this embodiment, an external wall thermal insulation reinforcement construction device and method are provided, including: a pre-embedded screw 4 on the inner side of the external wall, a foldable built-in internal thread pre-embedded part 2, and a water stop ring 1.

[0038] The embedded screw rod 4 on the inner side of the exterior wall is in the shape of an elongated rod as a whole, and is made of high-strength metal material, such as carbon steel that has been quenched and tempered. Carbon steel has good mechanical properties and can meet the strength requirements of the screw rod under the weight of the insulation board and external forces. One end of the screw rod extends out of the exterior wall structure body 3, and the middle part thereof is firmly combined with the steel mesh 6 embedded in the exterior wall structure body 3 by welding technology. The other end of the embedded screw rod 4 on the inner side of the exterior wall is connected to the foldable internally threaded embedded part 2. During the connection operation, first accurately determine the predetermined welding position of the embedded screw 4 on the inner side of the exterior wall on the steel mesh 6 to ensure that it meets the mechanical structure design requirements of the exterior wall external insulation reinforcement system. This position must take into account the stability of the overall structure and the uniform stress characteristics. After welding is completed, the welding part is strictly quality inspected, and non-destructive testing techniques such as ultrasonic testing or magnetic particle testing are used to detect the quality of the inside and surface of the weld to ensure that the quality of the welded joint meets the relevant standards and the high-strength and high-stability connection requirements set by the present invention.

[0039] The distribution arrangement of the steel mesh 6 and the embedded screws 4 on the inner side of the exterior wall is such that within each square meter of the steel mesh 6 area, the number of connected embedded screws 4 on the inner side of the exterior wall is no less than 6 to 8. This number distribution is determined based on the mechanical calculation model of the exterior wall external insulation system and actual engineering experience to achieve uniform and reliable support and fixation of the insulation board.

[0040] At least one fixing screw 5 is arranged above and below each pre-embedded screw 4 on the inner side of the connected exterior wall of the steel mesh 6; the fixing screw 5 and the steel mesh 6 are connected by a threaded connection, and a matching threaded hole is pre-arranged at the corresponding position on the steel mesh 6, and the fixing screw 5 is fastened by screwing into the threaded hole; a special positioning tool is used to ensure that the fixing screw 5 and the pre-embedded screw 4 on the inner side of the exterior wall maintain a vertical relationship, and the vertical deviation is controlled within ±1 degree, so as to cooperate with the pre-embedded screw 4 on the inner side of the exterior wall to accurately position and firmly fix the steel mesh 6, prevent the steel mesh 6 from displacement or deformation during concrete pouring, vibration and subsequent use, and provide a stable basic structure support for the exterior wall external insulation reinforcement construction.

[0041] Please refer to Figure 1 , Figure 3 and Figure 4 The foldable internal internal thread embedded part 2 is a columnar structure as a whole, and the cross-sectional shape of the column can be round or square, and the specific shape is determined according to mechanical analysis and actual application requirements. The foldable internal internal thread embedded part 2 is provided with a high-precision internal thread. The pitch, tooth angle and other parameters of the internal thread are designed according to international standards or industry specifications, and are precisely matched with the external thread of the external screw 11, thereby ensuring that it has sufficient connection strength and stability when tightened with the external screw 11, and can withstand various external forces on the insulation board without loosening.

[0042] The foldable embedded internal thread embedded part 2 is an overall columnar structure, including a limiting structure 8 and a rotating shaft 9; the limiting structure 8 is a polygonal geometric shape, such as a hexagon or an octagon. The number of sides is selected based on considerations of mechanical stability and locking effect, and the polygonal structure can disperse the force more evenly. The locking structure is set on at least one side, such as a dovetail groove and a tenon, or a mosaic structure of protrusions and recesses with specific angles and shapes. This locking structure can firmly connect the limiting structure 8 to the embedded part body in the expanded state, ensuring that during the construction process, especially in complex processes such as concrete pouring and vibration, it will not be accidentally expanded due to external forces, thereby ensuring the safety of construction and the stability of the embedded parts.

[0043] The rotating shaft 9 is a cylindrical structure, and its diameter and length are determined according to the overall size and folding requirements of the foldable internally threaded embedded part 2. Both ends extend accurately through the surface of the foldable internally threaded embedded part 2, and the connection with the embedded part body adopts interference fit or other reliable connection methods to ensure that the rotating shaft 9 will not loosen or move during the rotation process. It is made of high-strength metal materials, such as high-quality stainless steel or alloy steel, which has high hardness, high strength and good wear resistance, ensuring that the rotating shaft 9 can withstand complex stress without deformation or damage during multiple folding and unfolding operations and long-term use.

[0044] Please refer to Figure 2 , the foldable internal internal thread embedded part 2 penetrates the external insulation board and is screwed together with the circular fixing piece 10 containing a nut and the external screw 11 assembly in the unfolded state; the circular fixing piece 10 containing a nut and the external screw 11 assembly are installed on the outside of the insulation board, and are tightened and reinforced with the foldable internal internal thread embedded part 2 to form a reliable clamping force system for the insulation board. During the installation process, the external screw 11 passes through the screw hole of the circular fixing piece containing a nut and is screwed into the foldable internal internal thread embedded part 2. As the tightening degree increases, the clamping force gradually increases. This clamping force can effectively resist various external forces to which the insulation board is subjected during use, such as wind from different directions, temperature stress caused by seasonal changes or temperature differences between day and night, etc. At the same time, the close contact between the circular fixing plate 10 containing the nut and the surface of the insulation board not only ensures the fixing effect of the insulation board, but also improves the sealing between the insulation board and the wall, reduces air infiltration, thereby further improving the insulation effect and ensuring the efficient operation and long-term stability of the exterior wall insulation system.

[0045] The water stop ring 1 is sleeved on the inner embedded screw 4 of the outer wall between the steel mesh 6 and the foldable internally threaded embedded part 2; the water stop ring 1 is an annular structure, and its inner diameter is adapted to the outer diameter of the inner embedded screw 4 of the outer wall.

[0046] As a core waterproof component, the ring structure of the water stop ring 1 has precise geometric dimensions. The outer diameter matches the outer diameter of the embedded screw 4 on the inner side of the outer wall, and the tolerance is controlled within a very small range to ensure a close fit and no gap for water to pass through. Its ring cross section is circular and has uniform thickness. Materials with excellent water resistance and corrosion resistance are selected, such as high molecular elastic materials such as chloroprene rubber or EPDM rubber. These materials are not only highly tolerant to moisture, but also can maintain the stability of their chemical structure in a complex environment with long-term contact with various acids, alkalis, salts and other chemical substances. Its elasticity and flexibility are manifested in that when it is squeezed or stretched to a certain extent, the material can undergo elastic deformation, and can quickly return to its original state after deformation without permanent deformation or rupture. This characteristic allows the water stop ring 1 to effectively fill the gaps and ensure the water stop effect during installation, even in the face of slight unevenness of the wall structure or slight extrusion during construction.

[0047] like Figure 6 As shown, in another embodiment of the present invention, a construction method for external wall thermal insulation reinforcement is provided, comprising:

[0048] Step 1: Tie the steel mesh 6 to the steel bars of the exterior wall structure with wire. During the tying process, ensure that the position of the steel mesh 6 is accurate, and the intersection of the vertical and horizontal steel bars is tied firmly to ensure that the entire steel mesh 6 is flat and fits tightly with the steel bars of the exterior wall structure to avoid loosening or displacement.

[0049] Step 2: According to the requirement of external insulation specification that no less than 6 to 8 nails per square meter, weld the embedded screw rods 4 on the inner side of the exterior wall to the steel mesh 6. During the welding process, use a suitable welding process (such as arc welding) to ensure that the welding is firm, the weld is full, and there are no defects such as pores and slag inclusions. The welding position is accurate so that the embedded screw rods 4 on the inner side of the exterior wall are perpendicular to the steel mesh 6.

[0050] Step 3: After welding is completed, the positioning of the embedded screw 4 on the inner side of the exterior wall is further adjusted through the adjustable fixing screw 5. Use a wrench to rotate the adjusting nut of the adjustable fixing screw 5 to fine-tune the position of the screw to ensure that the embedded screw 4 on the inner side of the exterior wall is accurately arranged on the plane (the corner must be set) and in a manner as required by the design, and the spacing and angle errors between adjacent screws are controlled within the allowable range to ensure the uniformity of force on the entire system.

[0051] Step 4: Fold the foldable internal thread embedded part 2 vertically, and pay attention to protecting the rotating shaft 9 and the limiting structure 8 during the operation to avoid damage. After the folding is completed, seal the internal structure of the rotating node. Select a sealing material that is easy to disassemble and will not damage the foldable internal thread embedded part 2 during the disassembly process, such as a special rubber sealant or a peelable sealing film. Use a sealing tool to evenly apply or stick the sealing material on the rotating node to ensure a tight seal to prevent concrete from entering the node during the subsequent concrete pouring process and affecting the normal use of the embedded part.

[0052] Step 5: Pour the concrete for the reinforcement formwork of the exterior wall structure 3. During the pouring process, pay attention to controlling the pouring speed and height of the concrete to avoid excessive impact of the concrete on the installed steel mesh 6 and the embedded screws 4 on the inner side of the exterior wall. At the same time, to ensure the compactness of the concrete, a vibrator can be used for vibration, but it should be noted that the vibrator must not touch the steel mesh 6, the embedded screws 4 on the inner side of the exterior wall, and the foldable internal thread embedded parts 2 to prevent them from shifting.

[0053] Step 6: After the concrete reaches the specified strength, the formwork is removed. Be careful during the formwork removal process to avoid damage to the wall surface and installed components. After the formwork is removed, the exterior wall structure 3 is maintained in a timely manner. Methods such as covering with a wet cloth and spraying a curing agent can be used to ensure that the wall concrete maintains an appropriate humidity and temperature during the curing period, promote the growth of concrete strength, and prevent quality problems such as cracks.

[0054] Step 7: Use a special tool to straighten the foldable internal thread embedded part 2. During the operation, ensure that the rotating shaft 9 rotates normally to avoid damage to the embedded part due to forced operation. After straightening, clean the sealing material on its surface. You can use a cleaning tool (such as a scraper, brush, etc.) to completely remove the sealing material to ensure that the surface of the embedded part is clean so that it can be tightened and connected with the external thread screw 11 later.

[0055] Step 8: Install the external insulation board and place it accurately on the outside of the wall so that the foldable internal thread embedded part 2 penetrates the insulation board. During the placement process, pay attention to the flatness and position accuracy of the insulation board to ensure that the insulation board fits tightly to the wall surface without hollowing.

[0056] Step 9: Install the circular fixing piece 10 with a nut and the external thread screw 11 assembly on the outside of the insulation board according to the design requirements. Pass the external thread screw 11 through the central screw hole of the circular fixing piece 10 with a nut, and then screw it into the foldable built-in internal thread embedded part 2. Use tools such as a screwdriver or a wrench to gradually tighten the external thread screw 11. During the tightening process, pay attention to ensure that the circular fixing piece 10 with a nut fits tightly with the surface of the insulation board, so that the entire assembly forms a uniform and sufficient clamping force on the insulation board, effectively fixes the insulation board, and resists various external forces such as its own gravity, external wind force, and stress caused by temperature changes during use. Ensure that the insulation board is firmly fixed on the exterior wall structure wall 3 to complete the exterior wall external insulation reinforcement construction.

[0057] As a preferred solution, in some other embodiments, the foldable internally threaded embedded part 2 may also contain a chemical expansion agent. During the process of tightening the external thread screw 11, the chemical expansion agent is crushed and expanded by force, ensuring a more secure reinforcement.

[0058] This device has unique adaptability for energy-saving renovation of existing buildings. When the exterior wall structure of an existing building is complex and the space is limited, the advantages of the foldable built-in internal thread embedded parts 2 of this device are particularly obvious. Its foldable feature eliminates the need to destroy the existing wall structure or formwork on a large scale during construction, and installation operations can be performed in a limited space. The combination of the water stop ring 1 and the embedded screw 4 on the inside of the exterior wall can still effectively prevent rainwater from penetrating into the interior of the wall of the existing building during the insulation reinforcement process, avoiding damage to the existing wall structure and the internal decorative layer. The steel mesh 6 can be appropriately adjusted and installed according to the actual stress conditions of the exterior wall of the existing building, and through the connection with the embedded screw 4 on the inside of the exterior wall, a reliable support is provided for the reinforcement of the insulation board.

[0059] During the energy-saving renovation of existing buildings, the adjustable fixing screw 5 can be used to fine-tune the existing exterior wall structure to adapt to different wall conditions and insulation board installation requirements. The foldable internal internal thread embedded part 2 can be smoothly unfolded and penetrate the external insulation board in the concrete or other structural materials of the existing wall, and then reinforced by the circular fixing piece 10 containing a nut and the external thread screw assembly. This construction method has little interference with the normal use of existing buildings, and can efficiently complete the external wall insulation reinforcement work, improve the insulation performance of existing buildings, reduce energy consumption, and at the same time extend the service life of the building, and enhance the comfort and value of existing buildings.

[0060] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An external wall thermal insulation reinforcement construction device, characterized in that: include: Pre-embedded screw rods (4) on the inner side of the exterior wall, foldable embedded internal threaded pre-embedded parts (2) and a water stop ring (1); The embedded screw rod (4) on the inner side of the outer wall is in the form of an elongated rod-shaped structure as a whole, one end of which extends out of the outer wall structure body (3), the middle part of which is fixedly connected to the steel mesh (6) embedded in the outer wall structure body (3), and the other end of which is hinged to the foldable embedded internal thread embedded part (2); The foldable embedded part (2) with internal thread comprises an embedded part body (21) which is in a columnar structure and provided with internal thread, a limiting structure (8) and a locking device; one end of the embedded part body (21) is hinged to the embedded screw rod (4) on the inner side of the external wall, and the other end of the embedded part body (21) can be rotated outward and unfolded, and in the unfolded state, penetrates the external insulation board (14) and is connected to the locking device arranged on the outer side of the insulation; the locking device is provided with an external thread matching the internal thread of the embedded part body, and the insulation board is fixed to the wall (3) in the tightened state; the limiting structure (8) is arranged at the hinged position between the embedded part body and the embedded screw rod (4) on the inner side of the external wall, and plays a limiting and fixing role on the embedded part body when the embedded part body (21) is in the unfolded state; The water stop ring (1) is sleeved on the inner embedded screw rod (4) of the outer wall between the steel mesh (6) and the foldable embedded internal threaded part (2); the water stop ring (1) is an annular structure, and its inner diameter is matched with the outer diameter of the inner embedded screw rod (4) of the outer wall.

2. The external wall thermal insulation reinforcement construction device according to claim 1, characterized in that: The embedded component body (21) is hingedly connected to the embedded screw rod (4) on the inner side of the exterior wall via a rotating shaft (9) arranged at the junction of the two.

3. The external wall thermal insulation reinforcement construction device according to claim 1, characterized in that: The rotating shaft (9) is a cylindrical structure and is arranged as a rotating shaft inside the foldable internally threaded embedded component (2), with both ends extending through the surface of the foldable internally threaded embedded component (2).

4. An external wall thermal insulation reinforcement construction device according to any one of claims 1 to 3, characterized in that: The locking device comprises a circular fixing plate (10) with a nut and an external thread screw (11); the circular fixing plate (10) with a nut can be sleeved on the embedded component body (21); the external thread screw (11) passes through the circular fixing plate (10) and the nut on the circular fixing plate, and is matched and connected with the internal thread of the embedded component body (21).

5. An external wall thermal insulation reinforcement construction device according to any one of claims 1 to 3, characterized in that: Each square of the steel mesh (6) is connected to no less than 6 pre-embedded screws (4) on the inner side of the outer wall.

6. The external wall thermal insulation reinforcement construction device according to claim 5, characterized in that: The steel mesh (6) is provided with at least one fixing screw (5) above and below each pre-embedded screw (4) on the inner side of each connected external wall.

7. An external wall thermal insulation reinforcement construction device according to any one of claims 1 to 3, characterized in that: The water stop ring (1) is made of a water-resistant and corrosion-resistant material and has elasticity and flexibility.

8. An external wall thermal insulation reinforcement construction device according to any one of claims 1 to 3, characterized in that: The limiting structure (8) is a locking slot structure; the locking slot structure is in a polygonal geometric shape, and a protruding structure (12) is arranged on at least one side thereof, and the foldable built-in internal thread embedded part (2) is provided with a slot (13) matching the protruding structure (12) on the corresponding side thereof.

9. A method for external wall thermal insulation reinforcement construction, implemented by using the construction device for assembling building exterior protection and exterior decoration as described in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. The steel mesh (6) is tied to the steel bars of the exterior wall structure with a wire tie, and the embedded screws (4) on the inner side of the exterior wall are fixed to the steel mesh (6) according to the requirements of the external insulation specification of not less than 6 per square meter, and the positioning is adjusted by rotating the adjustable fixing screw (5) to change its position on the steel mesh (6) and adjust its extension length; S2. Keep the foldable internal thread embedded member (2) in a folded vertical state, and seal the internal structure of the rotating node at the hinge; the sealing material is easy to disassemble, and the foldable internal thread embedded member (2) is not damaged during the disassembly process; S3. Carry out concrete pouring, formwork removal and maintenance of the external wall structure reinforcement formwork; S4. Use a tool to fold the built-in internal thread embedded member (2) to rotate outward and straighten it and clean its surface sealing material; S5. Install an external insulation board so that it is foldable internal thread embedded member (2) through; S6. On the outside of the insulation board, a circular fixing plate (10) containing a nut and an external screw (11) are combined with the internal thread of the foldable internal thread embedded part (2) to tighten and reinforce.

10. The exterior wall external insulation reinforcement construction method according to claim 9, characterized in that: The embedded screw rod (4) in S1 must be provided at the corner of the external wall structure (3).

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