Exterior wall external thermal insulation reinforcing construction device and method

Abstract

The application discloses a kind of outer wall external thermal insulation reinforcement construction device and method, device includes outer wall inside pre-buried screw rod, is slender rod, one end protrudes outer wall structure wall body, middle part is fixedly connected with embedded in outer wall structure wall body Reinforcing mesh, the other end is hinged with foldable built-in internal thread threaded pre-buried part;Foldable built-in internal thread threaded pre-buried part whole is columnar and is set internal thread threaded pre-buried part main body, limiting structure and locking device, it is connected in the state of unfolding with the combination of round fixed piece and external screw rod containing nut and external thermal insulation plate by screwing penetration;Limiting structure is arranged at the hinge of pre-buried part main body and outer wall inside pre-buried screw rod, and limiting fixing is positioned to pre-buried part main body in unfolded state;Water stop ring is annular, is tightly sleeved on the outer wall inside pre-buried screw rod between reinforcing mesh and foldable built-in internal thread threaded pre-buried part.Solved by fixed part caused wall water seepage, formwork cannot be reused and the problem of thermal insulation board falling off.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of external wall external insulation construction, more specifically, relates to an external wall external insulation reinforcement construction device and method. BACKGROUND

[0002] With the increasingly prominent global energy problem, building energy saving has become a key issue in the field of modern architecture. Among the building energy saving measures, external wall insulation technology plays a crucial role in reducing building energy consumption and improving indoor comfort. The external wall insulation system aims to reduce the exchange of heat between indoor and outdoor by setting an insulation layer on the external wall of the building, thereby achieving the energy saving goal. Currently, the external wall insulation technology has developed from traditional on-site bonding construction to new type of insulation and decoration integrated board. The latter integrates various functions such as insulation, waterproofing, and finishing through assembly line production, greatly meeting the current demand for building energy saving, becoming the preferred material for industrial and civil building external wall insulation, and also the first choice for existing building energy saving reconstruction.

[0003] The traditional method of adding an insulation layer is to paint cement mortar on the base wall, and then paste the insulation layer on the base wall through bonding mortar. However, bonding mortar itself has many limitations. With the extension of service life, the bonding mortar will inevitably age. At the same time, the building will undergo repeated changes in temperature difference during long-term use, and this environmental factor will seriously affect the structural stability of the bonding mortar. Under the combined action of these factors, the structural force of the bonding mortar gradually decreases, leading to serious problems in the insulation layer and the outer decorative layer. The insulation layer is easily peeled off from the wall under the action of its own gravity and external forces such as wind, which not only poses a great threat to the safety of personnel and property around the building, but also makes the repair work of the wall extremely difficult and costly if such a situation occurs. In addition, the decorative layer is formed by brushing the viscous decorative material on the outer wall of the insulation layer, and the bonding between the decorative layer and the insulation layer will also weaken over time, also posing a risk of peeling off from the outer wall of the insulation layer.

[0004] There are many external wall insulation reinforcement related technical solutions in the prior art. One solution solves the problem of inconvenient disassembly and difficult repair of the anchoring piece for reinforcing the insulation layer, but there are risks of rainwater seepage into the wall along the screw and loosening of the limiting part connection causing the insulation board to fall off. Another solution overcomes the problem of peeling off of the insulation layer and the decorative layer, but there is a risk of rainwater seepage into the interior wall decorative layer causing damage and mold due to the screw reinforcement in the wall. Another solution has the advantages of simple construction, quick installation and removal, reduction of external wall process, no external wall seepage, cancellation of external scaffolding, and detachable and recyclable bolts, etc., but the pre-embedded piece and the connecting piece are welded together, which may cause the insulation board to ignite, and the pre-embedded piece may be loosened in the flexible insulation board. SUMMARY

[0005] In summary, the existing external wall insulation reinforcement technology all has different degrees of defects, and an urgent need for a new type of external wall external insulation reinforcement construction device and method which can effectively solve the above problems. The present application is an innovative solution to these deficiencies, through the embedded in the wall can stop the connecting piece, through the outer screw rod connection fixed external insulation, and eliminate the leakage and the phenomenon of "fake nails".

[0006] In view of the above defects or improvement needs of the prior art, the present application provides an external wall external insulation reinforcement construction device, characterized in that it comprises:

[0007] The outer wall inside embedded screw rod is in the form of an elongated rod structure, one end of which extends out of the wall structure, the middle part is fixedly connected with the steel mesh embedded in the wall structure, and the other end is hingedly connected with the foldable built-in internal thread embedded part;

[0008] The outer wall inside embedded screw rod is in the form of an elongated rod structure, one end of which extends out of the wall structure, the middle part is fixedly connected with the steel mesh embedded in the wall structure, and the other end is hingedly connected with the foldable built-in internal thread embedded part;

[0009] The foldable built-in internal thread embedded part comprises a main body in the form of a column structure and provided with an internal thread, a limiting structure and a locking device. One end of the main body is hingedly connected with the outer wall inside embedded screw rod, and the other end of the main body can be rotated and unfolded outward, and in the unfolded state, it penetrates the external insulation board and is connected with the locking device provided on the outer side of the insulation board. The locking device is provided with an external thread matched with the internal thread of the main body, and in the tightened state, the locking device fixes the insulation board on the wall structure. The limiting structure is arranged at the hinged connection between the main body and the outer wall inside embedded screw rod, and in the unfolded state of the main body, the limiting structure limits and fixes the main body;

[0010] The water stop ring is sleeved on the outer wall inside embedded screw rod between the steel mesh and the foldable built-in internal thread embedded part. The water stop ring is in the form of a ring structure, and the inner diameter thereof is matched with the outer diameter of the outer wall inside embedded screw rod;

[0011] The steel mesh is provided with not less than one adjustable fixing screw rod above and below each connected outer wall inside embedded screw rod;

[0012] The limiting structure is a locking slot structure, which is in the form of a polygonal geometric shape, and is provided with a protruding structure on at least one side,

[0013] The outer wall inside embedded screw rod is provided with a slot matched with the protruding structure on the corresponding side;

[0014] The locking slot structure connects the limiting structure and the main body in the unfolded state.

[0015] Further, the embedded part body and the outer wall inner side embedded screw rod are hinged through the rotating shaft arranged at the joint of the two.

[0016] Further, the rotating shaft is in cylindrical structure, arranged as rotating shaft inside the foldable built-in internal thread embedded part, and the two ends thereof extend through the surface of the foldable built-in internal thread embedded part.

[0017] Further, the locking device comprises the screw cap containing circular fixing sheet and the external thread screw rod; the screw cap containing circular fixing sheet can be sleeved on the embedded part body, and the external thread screw rod passes through the screw cap containing circular fixing sheet and is connected with the internal thread of the embedded part body.

[0018] Further, the steel mesh is connected with not less than 6 outer wall inner side embedded screw rods per square.

[0019] Further, the water stop ring is made of material with water resistance and corrosion resistance, and has elasticity and flexibility.

[0020] As the second aspect of the present application, a method for external wall external insulation reinforcement construction is also provided, which is applied to the device for external wall external insulation reinforcement construction and comprises the following steps.

[0021] S1. The steel mesh is bound to the outer wall structure steel bar with a binding wire, the outer wall inner side embedded screw rod is fixed on the steel mesh according to the requirement of not less than 6 per square meter in the external insulation specification, and the fixed screw rod is adjusted through rotation to change the position thereof on the steel mesh and adjust the extension length thereof to adjust the positioning.

[0022] S2. The foldable built-in internal thread embedded part is kept in the folded vertical state, and the internal construction of the rotating node at the hinge thereof is sealed; the sealing material is easy to be disassembled and does not damage the foldable built-in internal thread embedded part in the disassembling process.

[0023] S3. The external wall structure wall body reinforcement formwork concrete pouring, formwork disassembling and curing are carried out.

[0024] S4. The foldable built-in internal thread embedded part is rotated outward to be straightened and the surface sealing material thereof is cleaned.

[0025] S5. The external insulation board is installed, and the foldable built-in internal thread embedded part penetrates the external insulation board.

[0026] S6. The screw cap containing circular fixing sheet and the external thread screw rod combination body are matched with the internal thread of the foldable built-in internal thread embedded part on the outer side of the insulation board, and are tightened to reinforce.

[0027] Further, the outer wall inner side embedded screw rod in S1 must be arranged at the corner of the outer wall structure wall body.

[0028] Overall, compared with the prior art, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0029] 1. The external wall external insulation reinforcing construction device of the present application effectively solves the water seepage problem caused by rainwater seepage along the fixing member (such as a screw rod, etc.) during the external wall external insulation construction and reinforcement process, avoids the damage to the wall insulation performance, internal structure, and internal wall decoration layer caused by water seepage in the prior art, ensures the stability and durability of the external wall insulation system, and guarantees the overall quality and use safety of the building.

[0030] 2. The external wall external insulation reinforcing construction device of the present application adopts a folding pre-embedded part, the main body of the pre-embedded part is folded, and there is no need to punch holes in the formwork for external wall pouring, solving the problem of formwork damage after demolding and the problem of difficulty in reusing the formwork in the prior art. In addition, when the external insulation component is aged, damaged, or has other quality problems, the component can be reversed and rotated, and the insulation board can be replaced after being loosened, effectively solving the problem of difficulty in replacing the insulation board in the prior art.

[0031] 3. The external wall external insulation reinforcing construction device of the present application is designed with a folding bottom limiting locking device and an overall structure, the body is fully anchored in the concrete, and the loosening phenomenon is avoided, thereby ensuring the external insulation fixing construction quality, strengthening the fixing effect of the prefabricated insulation board, avoiding quality problems such as hollowing, cracking, and falling off in external insulation engineering, and effectively ensuring the construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a scheme cross-sectional view of the foldable built-in internal thread pre-embedded part in the folded state of the preferred embodiment of the present application;

[0033] Figure 2 is a scheme cross-sectional view of the foldable built-in internal thread pre-embedded part in the unfolded state of the preferred embodiment of the present application;

[0034] Figure 3 is a plan view of the preferred embodiment of the present application;

[0035] Figure 4 is Figure 1 is a structure schematic view of the foldable built-in internal thread pre-embedded part in the unfolded state in

[0036] Figure 5 is an enlarged view of the B node in the preferred embodiment of Figure 4

[0037] Figure 6 is a flowchart of the external wall external insulation reinforcing construction method in the embodiment of the present application; ​

[0038] In all the drawings, the same reference signs refer to the same technical features, in particular: 1 - water stop ring; 2 - foldable built-in internal thread embedded part; 21 - embedded part body, 3 - external wall structure wall; 4 - embedded screw rod inside the external wall; 5 - adjustable fixed screw rod; 6 - steel mesh; 8 - limiting structure; 9 - rotating shaft; 10 - round fixing plate with nut; 11 - external thread screw rod; 12 - protruding structure; 13 - clamping groove; 14 - insulation board. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0040] Please refer to Figure 1 In the present embodiment, a kind of external wall external thermal insulation reinforcing construction device and method are provided, comprising: embedded screw rod inside the external wall 4, foldable built-in internal thread embedded part 2, water stop ring 1.

[0041] Embedded screw rod inside the external wall 4 is overall slender rod structure, embedded screw rod inside the external wall 4 is overall slender rod structure, high-strength metal material is adopted, such as carbon steel after quenching and tempering treatment.Carbon steel has good mechanical properties, can meet the strength requirement of screw rod under the condition of bearing the weight of insulation board, external force, etc.;Its one end extends out of the external wall structure wall 3, the middle part is stably combined with the steel mesh 6 embedded in the external wall structure wall 3 by welding process, the other end of the embedded screw rod inside the external wall 4 is connected with the foldable built-in internal thread embedded part 2.During the connection operation, first, the predetermined welding position of the embedded screw rod inside the external wall 4 on the steel mesh 6 is accurately determined, to ensure that it meets the mechanical structure design requirements of the external wall external thermal insulation reinforcing system, the position needs to consider the stability and uniform stress characteristics of the overall structure;After welding, the welded part is strictly detected, the quality of the inside and surface of the weld is detected by using nondestructive testing techniques such as ultrasonic flaw detection or magnetic particle flaw detection, to ensure that the quality of the welded joint meets the relevant standards and the high-strength, high-stability connection requirements set by the present application.

[0042] The distribution of the steel mesh 6 and the embedded screw rod inside the external wall 4 is that in the area of each square meter of the steel mesh 6, the number of the connected embedded screw rod inside the external wall 4 is not less than 6 to 8, and the number of distribution is determined according to the mechanical calculation model of the external wall external thermal insulation system and actual engineering experience, to realize the uniform and reliable support and fixation of the insulation board.

[0043] The reinforcing mesh 6 is provided with no less than one adjustable fixing screw 5 above and below each of the embedded screws 4 on the inner side of each connected outer wall; the connection between the adjustable fixing screw 5 and the reinforcing mesh 6 adopts a threaded connection mode, and the reinforcing mesh 6 is provided with a threaded hole matched therewith at a corresponding position in advance, and the adjustable fixing screw 5 is fastened and connected by being screwed into the threaded hole; a special positioning tool is used to ensure that the adjustable fixing screw 5 and the embedded screw 4 on the inner side of the outer wall maintain a vertical relationship, and the vertical deviation is controlled within ±1 degree, so as to cooperate with the embedded screw 4 on the inner side of the outer wall to accurately position and stably fix the reinforcing mesh 6, prevent the reinforcing mesh 6 from being displaced or deformed during concrete pouring, vibrating and subsequent use, and provide stable basic structural support for the outer wall external thermal insulation reinforcement construction.

[0044] Please refer to Figure 1 , Figure 3 and Figure 4 , the foldable built-in internal thread embedded part 2 is in a columnar structure, and the cross-sectional shape of the column body can be circular or square, and the specific shape is determined according to mechanical analysis and actual application requirements. The foldable built-in internal thread embedded part 2 is internally provided with high-precision internal thread. The pitch and tooth angle parameters of the internal thread are designed according to international standards or industry specifications, and are accurately matched with the external thread of the external screw 11, so as to ensure that the connection strength and stability are sufficient when the external screw 11 is screwed and connected, and various external forces acting on the insulation board can be withstood without loosening.

[0045] The foldable built-in internal thread embedded part 2 is in a columnar structure, including a limiting structure 8 and a rotating shaft 9; the limiting structure 8 is in a polygonal geometric shape, such as a hexagon or an octagon. The number of sides is selected based on the consideration of mechanical stability and locking effect, and the multi-sided structure can more evenly disperse the stress. A locking structure is arranged on at least one side, such as a dovetail groove and tenon cooperation form, or a convex and concave embedding structure with a specific angle and shape. This locking structure can firmly connect the limiting structure 8 with the embedded part body in the unfolded state, and ensure that it will not be accidentally unfolded due to external force during the construction process, especially during the complex procedures such as concrete pouring and vibrating, to ensure the safety of the construction and the stability of the embedded part

[0046] The rotating shaft 9 is in a cylindrical structure, and its diameter and length are determined according to the overall size and folding requirements of the foldable built-in internal thread embedded part 2. The two ends accurately extend through the surface of the foldable built-in internal thread embedded part 2, and the connection with the embedded part body adopts interference fit or other reliable connection mode to ensure that the rotating shaft 9 will not loosen or displace during rotation. It is made of high-strength metal materials, such as high-quality stainless steel or alloy steel. Such materials have high hardness, high strength and good wear resistance, which can ensure that the rotating shaft 9 can withstand complex stress without deformation or damage during multiple folding and unfolding operations and long-term use.

[0047] Please refer to Figure 2 The foldable built-in internal thread pre-embedded part 2 is connected in a screwed manner with the combination of the circular fixing plate 10 with a screw cap and the external thread screw rod 11 through the external thermal insulation board in an unfolded state; the combination of the circular fixing plate 10 with a screw cap and the external thread screw rod 11 is installed on the outside of the thermal insulation board and is reinforced by being screwed with the foldable built-in internal thread pre-embedded part 2, thereby forming a reliable clamping force system for the thermal insulation board. During installation, the external thread screw rod 11 passes through the screw hole of the circular fixing plate with a screw cap and is screwed into the foldable built-in internal thread pre-embedded part 2, and the clamping force gradually increases with the increase of the screwing degree. This clamping force can effectively resist various external forces to which the thermal insulation board is subjected during use, such as wind force in different directions, temperature stress caused by seasonal changes or diurnal temperature difference, etc. At the same time, the close contact of the circular fixing plate 10 with a screw cap with the surface of the thermal insulation board not only ensures the fixing effect of the thermal insulation board, but also improves the sealing between the thermal insulation board and the wall body, reduces air permeation, thereby further improving the thermal insulation effect and ensuring the efficient operation and long-term stability of the external wall thermal insulation system.

[0048] The water stop ring 1 is sleeved on the external wall inside pre-embedded screw rod 4 between the steel mesh 6 and the foldable built-in internal thread pre-embedded part 2; the water stop ring 1 has a ring structure, and the inner diameter thereof is matched with the outer diameter of the external wall inside pre-embedded screw rod 4.

[0049] The water stop ring 1 as a waterproof core component has a ring structure with precise geometric dimensions. The outer diameter is matched with the outer diameter of the external wall inside pre-embedded screw rod 4, and the tolerance is controlled within a very small range to ensure close fitting without gap for water flow. The ring cross section is circular with uniform thickness. Materials with excellent high water resistance and corrosion resistance are selected, such as chloroprene rubber or EPDM (ethylene propylene diene monomer) high molecular elastic materials. These materials not only have high resistance to water, but also can maintain the stability of the chemical structure in the complex environment of long-term contact with various acids, bases and salts and other chemicals. The elasticity and flexibility are that when subjected to a certain degree of extrusion or stretching, the material can undergo elastic deformation, and after deformation, it can quickly restore to its original state without permanent deformation or rupture. This feature enables the water stop ring 1 to effectively fill the gap during installation, even in the face of slight unevenness of the wall structure or slight extrusion during construction, and ensures the waterproof effect.

[0050] As Figure 6 shown, in another embodiment of the present application, an external wall external thermal insulation reinforcement construction method is provided, comprising:

[0051] Step 1: Tie the steel mesh 6 to the external wall structure steel reinforcement with a binding wire, and ensure the accurate position of the steel mesh 6 during the binding process. The intersection of the longitudinal and transverse steel reinforcements is tightly bound to ensure that the entire steel mesh 6 is flat and closely fitted with the external wall structure steel reinforcement, avoiding loosening or displacement.

[0052] Step 2: According to the external insulation specification, at least 6 to 8 nails per square meter are required for the external wall inside pre-buried screw 4 welded on the steel mesh 6. During the welding process, appropriate welding technology (such as arc welding) is adopted to ensure firm welding, full weld, no porosity and slag inclusion and other defects. The welding position is accurate, making the external wall inside pre-buried screw 4 perpendicular to the steel mesh 6.

[0053] Step 3: After welding is completed, the positioning of the external wall inside pre-buried screw 4 is further adjusted by the adjustable fixed screw 5. The adjusting nut of the adjustable fixed screw 5 is rotated using a wrench to fine-tune the position of the screw, ensuring that the external wall inside pre-buried screw 4 is accurately arranged in the design requirements such as on the plane (corner must be set) and the angle error between adjacent screws is controlled within the allowable range, ensuring the uniformity of the entire system stress.

[0054] Step 4: Fold the foldable built-in internal thread pre-buried part 2 vertically, pay attention to protect the rotating shaft 9 and limiting structure 8 during operation to avoid damage. After folding is completed, the internal structure of the rotating node is sealed. Choose a sealing material that is easy to remove and will not damage the foldable built-in internal thread pre-buried part 2 during disassembly, such as special rubber sealant or peelable sealing film. Use sealing tools to evenly apply or paste the sealing material at the rotating node, ensuring airtight sealing to prevent concrete from entering the node during subsequent concrete pouring, affecting the normal use of the pre-buried part.

[0055] Step 5: Perform external wall structure wall 3 reinforcement formwork concrete pouring. During pouring, pay attention to control the pouring speed and height of the concrete to avoid excessive impact of the concrete on the installed steel mesh 6 and external wall inside pre-buried screw 4 and other components. At the same time, ensure the compactness of the concrete, which can be vibrated using a vibrating rod, but the vibrating rod must not touch the steel mesh 6, external wall inside pre-buried screw 4 and foldable built-in internal thread pre-buried part 2 to prevent displacement.

[0056] Step 6: After the concrete reaches the specified strength, perform the form removal operation. Be careful during form removal to avoid damaging the wall surface and installed components. After form removal, promptly maintain the external wall structure wall 3, which can be done by covering wet cloth, spraying curing agent, etc. to ensure that the wall concrete maintains appropriate humidity and temperature during the curing period, promotes the growth of concrete strength, and prevents quality problems such as cracks.

[0057] Step 7: Straighten the foldable built-in internal thread embedded part 2 with a special tool, and make sure that the rotating shaft 9 rotates normally during the operation to avoid damage to the embedded part caused by forced operation. After straightening, clean the surface sealant. Clean tools such as scrapers and brushes can be used to completely remove the sealant and ensure that the surface of the embedded part is clean to facilitate subsequent tightening connection with the external thread screw rod 11.

[0058] Step 8: Install the external insulation board. Place the insulation board accurately on the outside of the wall body, so that the foldable built-in internal thread embedded part 2 penetrates the insulation board. During placement, pay attention to the flatness and position accuracy of the insulation board to ensure that the insulation board is tightly attached to the surface of the wall body without hollowing.

[0059] Step 9: Install the combination of the circular fixing plate 10 with a nut and the external thread screw rod 11 on the outside of the insulation board according to the design requirements. Insert the external thread screw rod 11 through the center hole of the circular fixing plate 10 with a nut, and then screw it into the foldable built-in internal thread embedded part 2. Use a screwdriver or wrench to gradually tighten the external thread screw rod 11. During tightening, make sure that the circular fixing plate 10 with a nut is tightly attached to the surface of the insulation board, so that the entire combination forms a uniform and sufficient clamping force on the insulation board, effectively fixing the insulation board and resisting various external forces such as the weight of the insulation board itself, external wind force, and stress caused by temperature changes during use. This ensures that the insulation board is firmly fixed to the external wall structure wall body 3, completing the external wall external insulation reinforcement construction.

[0060] As a preferred solution, in some other embodiments, the foldable built-in internal thread embedded part 2 can also contain a chemical expanding agent. During the tightening of the external thread screw rod 11, the chemical expanding agent is crushed and expanded under stress, ensuring more reliable reinforcement.

[0061] For energy-saving reconstruction of existing buildings, this device has unique adaptability. In the case of complex external wall structure and limited space of existing buildings, the advantages of the foldable built-in internal thread embedded part 2 of this device are particularly obvious. Its foldable feature allows installation and operation in limited space without large-scale destruction of existing wall structures or formwork during construction. The combination of the water stop ring 1 and the external wall inside embedded screw rod 4 can still effectively prevent rainwater from penetrating into the existing building wall during insulation reinforcement, avoiding damage to the existing wall structure and internal decorative layer. The steel mesh 6 can be appropriately adjusted and installed according to the actual stress condition of the external wall of the existing building, and connected with the external wall inside embedded screw rod 4 to provide a reliable support for the reinforcement of the insulation board.

[0062] In the process of energy-saving reconstruction of existing buildings, the adjustable fixed screw 5 can be used for fine adjustment of the existing outer wall structure to adapt to different wall conditions and insulation board installation requirements. The foldable built-in internal thread threaded 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 be reinforced by the combination of the round fixing plate 10 containing the screw cap and the external thread screw. This construction method has less interference to the normal use of the existing building, and can efficiently complete the external wall insulation reinforcement work, improve the insulation performance of the existing building, reduce energy consumption, prolong the service life of the building, and improve the comfort and value of the existing building.

[0063] Those skilled in the art will readily understand that the above description is only preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An exterior wall thermal insulation reinforcement construction device, characterized by, It includes: The outer wall inside the embedded screw rod (4), the foldable built-in internal thread embedded part (2) and the water stop ring (1); The outer wall inside the embedded screw rod (4) is in the form of an elongated rod structure, one end of which extends out of the wall structure (3), the middle part is fixedly connected with the steel mesh (6) embedded in the wall structure (3), and the other end is hingedly connected with the foldable built-in internal thread embedded part (2); The foldable built-in internal thread embedded part (2) includes a columnar embedded part body (21) provided with internal thread, a limiting structure (8) and a locking device; one end of the embedded part body (21) is hingedly connected with the outer wall inside the embedded screw rod (4), the other end of the embedded part body (21) can be rotated and unfolded outward, and in the unfolded state, it penetrates the external thermal insulation board (14) and is connected with the locking device arranged on the outer side of the thermal insulation board; the locking device is provided with external thread matched with the internal thread of the embedded part body, and the locking device fixes the thermal insulation board on the wall structure (3) in the screwed state; the limiting structure (8) is arranged at the hinged connection between the embedded part body and the outer wall inside the embedded screw rod (4), and plays a limiting and fixing role on the embedded part body (21) in the unfolded state; The water stop ring (1) is sleeved on the outer wall inside the embedded screw rod (4) between the steel mesh (6) and the foldable built-in internal thread embedded part (2); the water stop ring (1) is in the form of a ring structure, and the inner diameter thereof is matched with the outer diameter of the outer wall inside the embedded screw rod (4); The steel mesh (6) is provided with not less than one adjustable fixing screw rod (5) above and below each connected outer wall inside the embedded screw rod (4); The limiting structure (8) is in the form of a deadlocking slot structure, which is in the form of a polygonal geometric shape, and is provided with a protruding structure (12) on at least one side thereof, The outer wall inside the embedded screw rod (4) is provided with a slot (13) matched with the protruding structure (12) on the corresponding side thereof; The deadlocking slot structure connects the limiting structure (8) and the embedded part body in the unfolded state.

2. The exterior wall external thermal insulation reinforcing construction device according to claim 1, characterized in that: The embedded part body (21) and the outer wall inside the embedded screw rod (4) are hingedly connected through a rotating shaft (9) arranged at the joint thereof.

3. The exterior wall external thermal insulation reinforcing construction device according to claim 2, characterized in that: The rotating shaft (9) is in the form of a cylindrical structure, which is arranged inside the foldable built-in internal thread embedded part (2) as a rotating shaft, and extends through the surface of the foldable built-in internal thread embedded part (2) at both ends thereof.

4. The exterior wall external thermal insulation reinforcing construction device according to any one of claims 1-3, characterized in that: The locking device includes a circular fixing plate (10) with a nut and an external thread screw rod (11); the circular fixing plate (10) with a nut can be sleeved on the embedded part body (21), and the external thread screw rod (11) penetrates the circular fixing plate (10) with a nut and is connected with the internal thread of the embedded part body (21).

5. The exterior wall external thermal insulation reinforcing construction device according to any one of claims 1-3, characterized in that: The steel mesh (6) is provided with not less than six outer wall inside the embedded screw rods (4) per square.

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

7. A method of exterior wall thermal insulation reinforcement construction, implemented using the exterior wall thermal insulation reinforcement construction device according to any one of claims 1 to 6, characterized in that, The steps include: S1. Steel mesh (6) is tied with a lashing wire on the outer wall structure steel, according to the external insulation specification, the outer wall inside pre-buried screw rod (4) is fixed on the steel mesh (6) and the fixed screw rod (5) is adjusted by rotating, the position of the fixed screw rod (5) on the steel mesh (6) is changed and the extension length is adjusted, so as to adjust the positioning; S2. The foldable built-in internal thread pre-buried part (2) is kept in the folded vertical state, and the internal construction of the rotating node at the hinge is sealed; the material for sealing treatment is easy to disassemble, and no damage to the foldable built-in internal thread pre-buried part (2) is caused during disassembly; S3. The outer wall structure wall body reinforcing formwork concrete pouring, formwork removal and curing are carried out; S4. The foldable built-in internal thread pre-buried part (2) is rotated outward to be straightened and the surface sealing material is cleaned; S5. The external insulation board is installed, so that it is penetrated by the foldable built-in internal thread pre-buried part (2); S6. The outer side of the insulation board is tightened and reinforced by the cooperation of the internal thread of the foldable built-in internal thread pre-buried part (2) and the combination of the round fixing sheet (10) containing a screw cap and the external thread screw rod (11).

8. The exterior wall exterior insulation reinforcing construction method according to claim 7, characterized by, The outer wall inside pre-buried screw rod (4) in S1 must be provided at the corner of the outer wall structure wall body (3).

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