Outer wall sandwich insulation structure

Abstract

The utility model belongs to the technical field of outer wall heat preservation, and discloses an outer wall sandwich heat preservation structure which comprises a heat preservation layer and a metal panel arranged outside the heat preservation layer, one end of the metal panel in the width direction is sunken inwards to form a connecting groove, and limiting holes are formed in the two opposite groove walls of the connecting groove; the other end of the metal panel in the width direction protrudes outwards to form a convex rib, the convex rib is matched with the connecting groove in shape, the convex rib is provided with a limiting assembly, the limiting assembly comprises a limiting block protruding out of the convex rib, and the limiting block can stretch into the limiting hole. According to the outer wall sandwich heat preservation structure, the limiting blocks are matched with the hole walls of the limiting holes to limit the outer wall sandwich heat preservation structure which is installed later, so that in the installation process of the outer wall sandwich heat preservation structure, operation can be completed only by one person, and the installation cost of the outer wall sandwich heat preservation structure is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of external wall insulation, specifically relating to an external wall sandwich insulation structure. Background Technology

[0002] With the promotion and application of energy-efficient buildings, insulation panels are typically installed on the exterior walls of modern residential buildings to reduce heat transfer between indoors and outdoors, achieving insulation in winter and heat insulation in summer. This reduces energy consumption of air conditioning and heating systems, thus achieving energy conservation and environmental protection. For high-end residences and factories, sandwich insulation panels are usually used to extend the service life of the insulation structure.

[0003] In related technologies, sandwich insulation panels include an insulation layer and a metal panel disposed outside the insulation layer. One end of the sandwich insulation panel in the width direction has a connecting groove formed by the inward indentation of the metal panel and the insulation layer. The other end of the sandwich insulation panel in the width direction has a protruding rib formed by the outward protrusion of the metal panel and the insulation layer. During installation, one insulation panel is first installed on the exterior wall. Expansion nails are then inserted through the insulation panel and into the exterior wall to secure it. The next insulation panel is then installed, with the protruding rib on the next panel extending into the connecting groove of the previous panel. The positioning and connection of adjacent insulation panels are achieved by utilizing the cooperation between the protruding ribs and the connecting grooves. However, to ensure the sealing between adjacent insulation panels, the width of the connecting groove is usually... The thickness of the reinforcing rib is set to be a few millimeters less than the thickness of the rib. This results in greater installation resistance when the rib is inserted into the connecting groove, preventing it from fully extending into the groove. To ensure full insertion, workers typically need to apply significant pressure to the later-installed insulation board in the direction of the earlier-installed board. After the pressure is released, the groove wall returns to its original shape, causing the rib to move outward under the force of the groove wall. This makes it impossible for a single person to secure the insulation board; at least two people are required. One worker applies pressure to the later-installed insulation board in the direction of the earlier-installed board, while the other uses expansion bolts to secure it, further increasing the installation cost. Utility Model Content

[0004] This application provides an external wall sandwich insulation structure to reduce the installation cost of external wall sandwich insulation panels.

[0005] The technical solution adopted in this application is as follows:

[0006] An external wall sandwich insulation structure includes an insulation layer and a metal panel disposed outside the insulation layer. One end of the metal panel is recessed inward in the width direction to form a connecting groove. The two opposite groove walls of the connecting groove are provided with limiting holes. The other end of the metal panel protrudes outward in the width direction to form a rib. The rib is adapted to the shape of the connecting groove. The rib is provided with a limiting component. The limiting component includes a limiting block protruding from the rib. The limiting block can extend into the limiting hole.

[0007] By adopting the above technical solution, when installing the external wall sandwich insulation structure of this application, one external wall sandwich insulation structure is first installed on the external wall, and then the next external wall sandwich insulation structure is installed. This allows the protruding ribs of the previously installed external wall sandwich insulation structure to extend into the connecting groove of the subsequently installed external wall sandwich insulation structure. Pressure is applied to the subsequently installed external wall sandwich insulation structure in the direction close to the previously installed external wall sandwich insulation structure, ultimately causing the protruding ribs to fully extend into the connecting groove. Simultaneously, the previously installed external wall sandwich insulation structure... The limiting block on the structure extends into the limiting hole of the subsequently installed external wall sandwich insulation structure. The cooperation between the limiting block and the wall of the limiting hole restricts the subsequent installation of the external wall sandwich insulation structure, preventing it from moving away from the previously installed external wall sandwich insulation board after the pressure on it is released. This allows the installation of the external wall sandwich insulation structure to be completed by a single person, thereby reducing the installation cost.

[0008] Optionally, the limiting block has a guide surface on the side opposite to the connecting groove, and the guide surface is inclined towards the outside of the protruding rib in the direction close to the connecting groove.

[0009] By adopting the above technical solution, since the limiting block has a guide surface on the side away from the connecting groove, and the guide surface is inclined towards the outside of the rib along the direction close to the connecting groove, when installing the two external wall sandwich insulation structures, the guide surface can abut against the groove opening of the connecting groove to guide the deformation direction of the groove wall. This makes the limiting block extend into the limiting hole more smoothly, thereby reducing the difficulty of assembling the two external wall sandwich insulation structures together and improving the construction efficiency of external wall insulation construction.

[0010] Optionally, the limiting component further includes a limiting tube disposed inside the rib and an elastic element disposed inside the limiting tube. Two limiting blocks are disposed opposite each other, and both limiting blocks are slidably connected to the limiting tube, so that each limiting block has a limiting position that is at least partially protruding from the rib and an abduction position that is completely hidden in the limiting tube. The elastic element acts on the two limiting blocks, and when the limiting block is in the abduction position, the elastic element undergoes elastic deformation and applies an elastic force toward the limiting position to the limiting block.

[0011] By adopting the above technical solution, when assembling two exterior wall sandwich insulation structures, the connecting groove on the later-installed exterior wall sandwich insulation structure is first aligned with the protruding rib on the earlier-installed exterior wall sandwich insulation structure. Then, pressure is applied to the later-installed exterior wall sandwich insulation structure in the direction of the earlier-installed structure, causing the later-installed structure to move towards the direction of the earlier-installed structure. This results in the opening of the connecting groove on the later-installed structure abutting against the earlier-installed exterior wall sandwich insulation structure. The guide surface of the upper limit block of the sandwich insulation structure is then pressed, and pressure is applied to the subsequently installed external wall sandwich insulation structure. This causes the groove wall of the subsequently installed external wall sandwich insulation structure to press against the guide surface, so that the limit block, under the pressure of the groove wall, overcomes the elastic force of the elastic element and moves from the limiting position to the avoidance position. When the protruding rib is fully inserted into the connecting groove and the limit block is aligned with the limiting hole, the limit block moves from the avoidance position to the limiting position under the action of the elastic element, and finally the limit block extends into the limiting hole, thus completing the assembly of the two external wall sandwich insulation structures together.

[0012] By setting a limiting tube and an elastic element, on the one hand, when installing two adjacent exterior wall sandwich insulation structures, the limiting block can elastically avoid the groove wall of the connecting groove, thereby reducing the difficulty of assembling the two exterior wall sandwich insulation structures together and improving the assembly efficiency of the exterior wall sandwich insulation structures. On the other hand, when the limiting block moves from the limiting position to the avoidance position, it needs to overcome the elastic force of the elastic element, thereby increasing the connection stability of the two adjacent exterior wall sandwich insulation structures.

[0013] Optionally, the side of the limiting block is provided with a positioning groove, and the inside of the limiting tube is provided with a positioning rib extending into the positioning groove. When the limiting block is in the limiting position, the positioning rib abuts against the inner end wall of the positioning groove.

[0014] By adopting the above technical solution, when the limiting block is in the limiting position, the positioning rib abuts against the inner end wall of the positioning groove. Then, the positioning rib and the inner end arm of the positioning groove can be used to limit the limiting block, so as to prevent the limiting block from coming out of the limiting tube, thereby increasing the connection stability between the limiting block and the limiting tube.

[0015] Optionally, the two sides of the rib are provided with receiving holes, one end of the limiting tube is provided with a blocking piece located in one of the receiving holes, and the other end of the limiting tube is engaged with a fixing ring located in the other receiving hole.

[0016] By adopting the above technical solution, when installing the limiting component, the limiting tube is first inserted into the rib so that the blocking plate at one end of the limiting tube is located in one of the receiving holes. Then, the fixing ring is installed so that the fixing ring is engaged with the limiting tube and is located in the other receiving hole. On the one hand, the blocking plate and the fixing ring can be used to limit the limiting tube to increase the stability of the limiting tube. On the other hand, the blocking plate and the fixing ring are hidden in the rib to reduce the difficulty of splicing two adjacent external wall sandwich insulation structures together.

[0017] Optionally, the inner circumferential surface of the fixing ring is provided with a receiving notch, and a snap-fit ​​arm is provided in the receiving notch. The snap-fit ​​arm has a snap-fit ​​protrusion protruding from the inner circumferential surface of the fixing ring, and the outer circumferential surface of the limiting tube is provided with a snap-fit ​​groove for receiving the snap-fit ​​protrusion.

[0018] By adopting the above technical solution, when installing the fixing ring, first align the snap-fit ​​arm on the fixing ring with the snap-fit ​​groove on the limiting tube, then apply pressure to the fixing ring in the direction of the limiting tube, so that the fixing ring is sleeved on the outside of the limiting tube. At the same time, the snap-fit ​​arm deforms under the action of the snap-fit ​​protrusion, so that the snap-fit ​​protrusion avoids the outer circumference of the limiting tube. Continue to press the fixing ring, and when the snap-fit ​​protrusion moves to the position of the snap-fit ​​groove, the snap-fit ​​arm returns to its original deformation, and finally the snap-fit ​​protrusion moves into the snap-fit ​​groove to complete the installation of the fixing ring. In the process of installing the fixing ring, only pressing the fixing ring is required, thereby reducing the difficulty of installing the fixing ring and improving the installation efficiency of the limiting component.

[0019] Optionally, a prompting groove is provided at the end of the limiting tube away from the blocking piece, and the prompting groove is disposed opposite to the snap-fit ​​groove in the axial direction of the limiting tube.

[0020] By adopting the above technical solution, since the indicator groove is located at the end of the limiting tube away from the blocking plate, and the indicator groove is axially opposite to the snap-fit ​​groove of the limiting tube, when installing the fixing ring, the worker can align the snap-fit ​​arm with the indicator groove, and then press the fixing ring to use the indicator groove to indicate the position of the snap-fit ​​groove, so as to facilitate the positioning of the fixing ring and further reduce the installation difficulty of the positioning ring.

[0021] Optionally, it may also include a fixing beam located at the upper end of the length of the metal panel, the fixing beam having a stop plate located on the side of the metal panel away from the exterior wall, and the fixing beam having fixing holes for expansion nails to pass through.

[0022] By adopting the above technical solution, when installing the exterior wall sandwich insulation structure, the fixing beams are first installed according to the length of the metal panel to ensure that the metal panel can be accommodated between the two fixing beams. Then, the metal panel is installed, positioned between the two fixing beams, with the metal panel on the side of the stop plate facing the exterior wall. The stop plate then blocks the metal panel, thus fixing it securely to the exterior wall. By using fixing beams, the need for expansion bolts to penetrate the metal panel is avoided, ensuring the integrity of the metal panel.

[0023] Optionally, the interior of the fixing beam is hollow to form a receiving cavity for accommodating the expansion nail, and the fixing hole is located in the cavity wall of the receiving cavity.

[0024] By adopting the above technical solution, since a receiving cavity is formed inside the fixed beam, the nail heads of the expansion nails used to fix the fixed beam to the exterior wall can be hidden in the receiving cavity, thereby improving the appearance quality of the exterior wall sandwich insulation structure and thus improving the user experience.

[0025] Optionally, the fixed beam has a through hole at the end facing away from the outer wall for the head of the expansion nail to pass through, and a sealing cap is provided in the through hole.

[0026] By adopting the above technical solution, since the end of the fixed beam away from the outer wall is provided with a through hole, the nail head of the expansion nail used to fix the fixed beam to the outer wall can enter the receiving cavity through the through hole, so as to ensure that the nail head of the expansion nail can be hidden in the receiving cavity, thereby ensuring the appearance quality of the outer wall sandwich insulation structure. At the same time, after the fixed beam is fixed with expansion nails, the sealing cover is installed to seal the through hole, thereby further improving the aesthetics of the outer wall sandwich insulation structure.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The external wall sandwich insulation structure in this application includes an insulation layer and a metal panel disposed outside the insulation layer. One end of the metal panel is recessed inward in the width direction to form a connecting groove. Two opposite groove walls are provided with limiting holes. The other end of the metal panel protrudes inward in the width direction to form a rib. The rib is adapted to the shape of the connecting groove. The rib is provided with a limiting component, which includes a limiting block protruding from the rib. The limiting block can extend into the limiting hole, so that the cooperation between the limiting block and the wall of the limiting hole can limit the external wall sandwich insulation structure installed later. This prevents the external wall sandwich insulation structure installed later from moving away from the location of the previously installed external wall sandwich insulation board after the pressure on the external wall sandwich insulation structure is released. As a result, the installation of the external wall sandwich insulation structure can be completed by a single person, thereby reducing the installation cost of the external wall sandwich insulation structure.

[0029] 2. The limiting block in this application has a guide surface on the side away from the connecting groove. The guide surface is inclined towards the outside of the protruding rib along the direction close to the connecting groove. When installing the two external wall sandwich insulation structures, the guide surface can abut against the groove opening to guide the deformation direction of the groove wall. This makes the limiting block extend into the limiting hole more smoothly, thereby reducing the difficulty of assembling the two external wall sandwich insulation structures together and improving the construction efficiency of external wall insulation construction.

[0030] 3. The limiting component in this application also includes a limiting tube located inside the rib and an elastic element disposed inside the limiting tube. Two limiting blocks are arranged opposite each other, and both limiting blocks are slidably connected to the limiting tube, so that each limiting block has a limiting position that is at least partially protruding from the rib and an avoidance position that is completely hidden in the limiting tube. The elastic element acts on the two limiting blocks, and when the limiting block is in the avoidance position, the elastic element undergoes elastic deformation and applies an elastic force toward the limiting position to the limiting block. On the one hand, when installing two adjacent external wall sandwich insulation structures, the limiting block can elastically avoid the groove wall of the connecting groove, thereby reducing the difficulty of assembling the two external wall sandwich insulation structures together and improving the assembly efficiency of the external wall sandwich insulation structure. On the other hand, when the limiting block moves from the limiting position toward the avoidance position, it needs to overcome the elastic force of the elastic element, thereby increasing the connection stability of the two adjacent external wall sandwich insulation structures. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1This application presents a schematic diagram of a structure in which multiple metal panels are connected together with a fixed beam in one embodiment;

[0033] Figure 2 This is a schematic diagram of a structure in one embodiment of the present application where multiple metal panels are connected together;

[0034] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0035] Figure 4 This is a cross-sectional view of the limiting component described in one embodiment of this application;

[0036] Figure 5 for Figure 4 Enlarged view of part B in the middle;

[0037] Figure 6 This is a cross-sectional view of the fixing ring described in one embodiment of this application;

[0038] Figure 7 This is a schematic diagram of a structure in one embodiment of this application, showing multiple metal panels connected together with a fixed beam;

[0039] Figure 8 for Figure 7 Enlarged view of section C;

[0040] Figure 9 This is a structural schematic diagram of the fixed beam described in one embodiment of this application.

[0041] Figure label:

[0042] 1. Insulation layer; 2. Metal panel; 21. Connecting groove; 211. Limiting hole; 22. Raised rib; 221. Accommodating hole; 3. Limiting component; 31. Limiting block; 311. Guide surface; 312. Positioning groove; 32. Limiting tube; 321. Positioning rib; 322. Blocking piece; 323. Fixing ring; 324. Snap-fit ​​groove; 325. Indicating groove; 326. Accommodating notch; 327. Snap-fit ​​arm; 33. Elastic element; 4. Fixing beam; 41. Stop piece; 42. Fixing hole; 43. Accommodating cavity; 431. Reinforcing piece; 432. Stop rib; 44. Through hole; 441. Sealing cap; 442. Sealing ring. Detailed Implementation

[0043] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0044] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0045] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0048] Reference Figures 1 to 9 The present invention discloses an external wall sandwich insulation structure, which includes an insulation layer 1 and a metal panel 2 disposed outside the insulation layer 1. One end of the metal panel 2 is recessed inward in the width direction to form a connecting groove 21. Two opposite groove walls of the connecting groove 21 are provided with limiting holes 211. The other end of the metal panel 2 protrudes outward in the width direction to form a rib 22. The rib 22 is adapted to the shape of the connecting groove 21. The rib 22 is provided with a limiting component 3. The limiting component 3 includes a limiting block 31 protruding from the rib 22. The limiting block 31 can extend into the limiting hole 211.

[0049] It should be noted that the insulation layer 1 is recessed inward at the position corresponding to the connecting groove 21 so that the insulation layer 1 and the connecting groove 21 can avoid each other; the insulation layer 1 is protruded outward at the position corresponding to the rib 22 so as to ensure the area of ​​the insulation layer 1.

[0050] It is understandable that the limiting hole 211 located on the wall of the connecting groove 21 is positioned opposite to the limiting block 31 of the limiting component 3.

[0051] Since the shape of the rib 22 is compatible with the connecting groove 21, the rib 22 on one of the two adjacent exterior wall sandwich insulation structures can extend into the connecting groove 21 of the other, thereby increasing the sealing between the two adjacent exterior wall sandwich insulation structures.

[0052] When installing the exterior wall sandwich insulation structure of this application, one exterior wall sandwich insulation structure is first installed onto the exterior wall, and then the next exterior wall sandwich insulation structure is installed. This causes the protruding rib 22 of the previously installed exterior wall sandwich insulation structure to extend into the connecting groove 21 of the subsequently installed exterior wall sandwich insulation structure. Pressure is applied to the subsequently installed exterior wall sandwich insulation structure in a direction close to the previously installed exterior wall sandwich insulation structure, ultimately causing the protruding rib 22 to fully extend into the connecting groove 21. Simultaneously, the limiting block on the previously installed exterior wall sandwich insulation structure... 31 extends into the limiting hole 211 of the subsequently installed external wall sandwich insulation structure. The limiting block 31 and the hole wall of the limiting hole 211 cooperate to limit the subsequently installed external wall sandwich insulation structure. This prevents the subsequently installed external wall sandwich insulation structure from moving away from the previously installed external wall sandwich insulation board after the pressure on it is released. As a result, the installation of the external wall sandwich insulation structure can be completed by a single person, thereby reducing the installation cost of the external wall sandwich insulation structure.

[0053] This application does not specify the material for the insulation layer 1. Preferably, the insulation layer 1 is made of rock wool to ensure the insulation performance of the external wall sandwich insulation structure. In other embodiments, the insulation layer 1 may also be made of polystyrene.

[0054] This application does not specify the material of the metal panel 2. It can be made of aluminum alloy or iron to ensure the service life of the exterior wall sandwich insulation structure.

[0055] In a preferred embodiment, refer to Figure 4The limiting block 31 has a guide surface 311 on the side away from the connecting groove 21. The guide surface 311 is inclined towards the outside of the protruding rib 22 in the direction close to the connecting groove 21. When the two external wall sandwich insulation structures are installed, the guide surface 311 can abut against the groove opening of the connecting groove 21 to guide the deformation direction of the groove wall of the connecting groove 21. Finally, the limiting block 31 can be inserted into the limiting hole 211 more smoothly, thereby reducing the difficulty of assembling the two external wall sandwich insulation structures together and improving the construction efficiency of external wall insulation construction.

[0056] This application does not specifically limit the structure of the limiting component 3; preferably, refer to... Figure 3 and Figure 4 The limiting component 3 also includes a limiting tube 32 disposed inside the rib 22 and an elastic element 33 disposed inside the limiting tube 32. Two limiting blocks 31 are disposed opposite each other, and both limiting blocks 31 are slidably connected to the limiting tube 32, so that each limiting block 31 has a limiting position that is at least partially protruding from the rib 22 and an avoidance position that is completely hidden in the limiting tube 32. The elastic element 33 acts on the two limiting blocks 31, and when the limiting block 31 is in the avoidance position, the elastic element 33 undergoes elastic deformation and applies an elastic force toward the limiting position to the limiting block 31.

[0057] When assembling the two exterior wall sandwich insulation structures, first align the connecting groove 21 on the later-installed exterior wall sandwich insulation structure with the protruding rib 22 on the earlier-installed exterior wall sandwich insulation structure. Then, apply pressure to the later-installed exterior wall sandwich insulation structure in the direction of the earlier-installed exterior wall sandwich insulation structure, causing the later-installed exterior wall sandwich insulation structure to move in the direction of the earlier-installed exterior wall sandwich insulation structure. This causes the opening of the connecting groove 21 on the later-installed exterior wall sandwich insulation structure to abut against the guide surface 31 of the upper limit block 31 of the earlier-installed exterior wall sandwich insulation structure. 1. Then, pressure is applied to the subsequently installed external wall sandwich insulation structure, so that the groove wall of the subsequently installed external wall sandwich insulation structure applies pressure to the guide surface 311, so that the limiting block 31 moves from the limiting position to the avoidance position under the pressure of the groove wall of the connecting groove 21, overcoming the elastic force of the elastic element 33. When the protruding rib 22 is fully inserted into the connecting groove 21 and the limiting block 31 is aligned with the limiting hole 211, the limiting block 31 moves from the avoidance position to the limiting position under the action of the elastic element 33, so that the limiting block 31 extends into the limiting hole 211, thereby completing the assembly of the two external wall sandwich insulation structures together.

[0058] By setting the limiting tube 32 and the elastic element 33, on the one hand, when installing two adjacent external wall sandwich insulation structures, the limiting block 31 can elastically avoid the groove wall of the connecting groove 21, thereby reducing the difficulty of assembling the two external wall sandwich insulation structures together and improving the assembly efficiency of the external wall sandwich insulation structures. On the other hand, when the limiting block 31 moves from the limiting position to the avoidance position, it needs to overcome the elastic force of the elastic element 33, thereby increasing the connection stability of the two adjacent external wall sandwich insulation structures.

[0059] This application does not specifically limit the structure of the elastic element 33; preferably, refer to... Figure 3 and Figure 4 The elastic element 33 is a spring disposed in the limiting tube 32. One end of the spring abuts against the limiting block 31 located at one end of the limiting tube 32, and the other end of the spring abuts against the limiting block 31 located at the other end of the limiting tube 32, so as to ensure the elastic driving effect of the elastic element 33 on the limiting block 31, while reducing the installation difficulty of the elastic element 33. In other embodiments, the elastic element 33 can also be an elastic sheet, an elastic column, or other structures that can apply elastic force to the limiting block 31.

[0060] Furthermore, refer to Figure 3 and Figure 4 The side of the limiting block 31 is provided with a positioning groove 312, and the inside of the limiting tube 32 is provided with a positioning rib 321 extending into the positioning groove 312. When the limiting block 31 is in the limiting position, the positioning rib 321 abuts against the inner end wall of the positioning groove 312. Then, the positioning rib 321 and the inner end arm of the positioning groove 312 can be used to limit the limiting block 31, so as to prevent the limiting block 31 from coming out of the limiting tube 32, thereby increasing the connection stability between the limiting block 31 and the limiting tube 32.

[0061] It should be noted that the inner end wall of the positioning groove 312 mentioned above refers to the end wall of the positioning groove 312 near the elastic member 33.

[0062] This application does not specifically limit the structure of the positioning groove 312. Preferably, the positioning groove 312 is formed by an annular groove extending circumferentially along the limiting block 31, so as to reduce the manufacturing difficulty of the limiting block 31. In other embodiments, the positioning groove 312 may also be a groove-shaped structure extending axially along the limiting tube 32.

[0063] This application does not specifically limit the formation method of the positioning rib 321. Preferably, the positioning rib 321 is formed by a protrusion protruding inside the limiting tube 32, so as to reduce the manufacturing difficulty of the limiting tube 32. In other embodiments, the positioning rib 321 may also be formed by a screw threaded through the limiting tube 32.

[0064] Furthermore, refer to Figure 3 and Figure 4 The rib 22 has receiving holes 221 on both sides opposite to each other. One end of the limiting tube 32 is provided with a blocking piece 322 located in one of the receiving holes 221, and the other end of the limiting tube 32 is engaged by a fixing ring 323 located in the other receiving hole 221.

[0065] Understandably, after the limiting component 3 is installed onto the rib 22, the blocking piece 322 abuts against one end face of the insulation layer 1 located in the rib 22, and the fixing ring 323 abuts against the other end face of the insulation layer 1 located in the rib 22.

[0066] When installing the limiting component 3, the limiting tube 32 is first inserted into the rib 22 so that the blocking piece 322 at one end of the limiting tube 32 is located in one of the receiving holes 221. Then, the fixing ring 323 is installed so that the fixing ring 323 is engaged with the limiting tube 32 and is located in the other receiving hole 221. On the one hand, the blocking piece 322 and the fixing ring 323 can limit the limiting tube 32 to increase the stability of the limiting tube 32. On the other hand, the blocking piece 322 and the fixing ring 323 are hidden in the rib 22 to reduce the difficulty of splicing two adjacent external wall sandwich insulation structures together.

[0067] This application does not specify the snap-fit ​​method between the fixed ring 323 and the limiting tube 32. Preferably, refer to Figure 4 , Figure 5 and Figure 6 The inner circumferential surface of the fixing ring 323 is provided with a receiving notch 326, and a snap-fit ​​arm 327 is provided in the receiving notch 326. The snap-fit ​​arm 327 has a snap-fit ​​protrusion protruding from the inner circumferential surface of the fixing ring 323. The outer circumferential surface of the limiting tube 32 is provided with a snap-fit ​​groove 324 for receiving the snap-fit ​​protrusion.

[0068] When installing the retaining ring 323, first align the snap-fit ​​arm 327 on the retaining ring 323 with the snap-fit ​​groove 324 on the limiting tube 32. Then, apply pressure to the retaining ring 323 in the direction of the limiting tube 32, so that the retaining ring 323 is fitted onto the outside of the limiting tube 32. At the same time, the snap-fit ​​arm 327 deforms under the action of the snap-fit ​​protrusion, so that the snap-fit ​​protrusion avoids the outer peripheral surface of the limiting tube 32. Continue to press the retaining ring 323. When the snap-fit ​​protrusion moves to the position of the snap-fit ​​groove 324, the snap-fit ​​arm 327 returns to its original shape, so that the snap-fit ​​protrusion moves into the snap-fit ​​groove 324, thus completing the installation of the retaining ring 323. During the installation of the retaining ring 323, only pressing the retaining ring 323 is required, thereby reducing the installation difficulty of the retaining ring 323 and improving the installation efficiency of the limiting component 3.

[0069] Preferably, the cross-section of the snap-fit ​​protrusion is semi-circular to further reduce the installation difficulty of the retaining ring 323.

[0070] Furthermore, refer to Figure 5 The end of the limiting tube 32 away from the blocking plate 322 is provided with a prompting groove 325, which is positioned opposite to the snap-fit ​​groove 324 in the axial direction of the limiting tube 32.

[0071] Since the indicator groove 325 is located at the end of the limiting tube 32 away from the blocking plate 322, and the indicator groove 325 is axially opposite to the snap-fit ​​groove 324 of the limiting tube 32, when installing the fixing ring 323, the operator can align the snap-fit ​​arm 327 with the indicator groove 325, and then press the fixing ring 323 to indicate the position of the snap-fit ​​groove 324, thereby facilitating the positioning of the fixing ring 323 and further reducing the difficulty of installing the positioning ring.

[0072] In other implementation examples, the outer peripheral surface of the limiting tube 32 is provided with ribs, and the inner peripheral surface of the fixing ring 323 is provided with grooves. After the fixing ring 323 is installed on the limiting tube 32, the ribs are engaged in the grooves to achieve the engagement between the fixing ring 323 and the limiting tube 32.

[0073] In other embodiments, the design of the limiting tube 32 and the elastic element 33 can be omitted, and the limiting block 31 can be directly fixed to the protruding rib 22.

[0074] In a preferred embodiment, refer to Figure 1 The external wall sandwich insulation structure also includes a fixing beam 4 located at the upper end of the length of the metal panel 2. The fixing beam 4 has a stop plate 41 located on the side of the metal panel 2 away from the external wall, and the fixing beam 4 has a fixing hole 42 for expansion nails to pass through.

[0075] When installing the exterior wall sandwich insulation structure, first install the fixing beams 4 according to the length of the metal panel 2, so that the metal panel 2 can be accommodated between the two fixing beams 4. Then install the metal panel 2, so that the metal panel 2 is located between the two fixing beams 4, and at the same time, the metal panel 2 is located on the side of the stop plate 41 facing the exterior wall, so that the stop plate 41 can block the metal panel 2, thereby fixing the metal panel 2 to the exterior wall. By setting the fixing beams 4, the need to use expansion nails to pass through the metal panel 2 is avoided, thus ensuring the integrity of the metal panel 2.

[0076] To increase the stability of the connection between the metal panel 2 and the exterior wall, after the metal panel 2 is installed between the two fixed beams 4, adhesive can be injected between the metal panel 2 and the exterior wall to fix the metal panel 2 again, thereby further improving the fixing effect of the metal panel 2.

[0077] Furthermore, refer to Figure 7 The interior of the fixed beam 4 is hollow to form a receiving cavity 43 for accommodating the expansion nail, and the fixing hole 42 is provided in the cavity wall of the receiving cavity 43.

[0078] Since the fixed beam 4 has a cavity 43 inside, the nail head of the expansion nail used to fix the fixed beam 4 to the exterior wall can be hidden in the cavity 43, thereby improving the appearance quality of the exterior wall sandwich insulation structure and improving the user experience.

[0079] The better one is to refer to Figure 7 A reinforcing plate 431 is provided in the accommodating cavity 43. The two sides of the reinforcing plate 431 are fixedly connected to the two opposite cavity walls of the accommodating cavity 43, and the fixing hole 42 extends to the reinforcing plate 431. On the one hand, it increases the structural strength of the fixing beam 4, and on the other hand, it increases the length of the expansion nail exposed outside the outer wall, so as to improve the fixing effect of the expansion nail on the fixing beam 4.

[0080] Furthermore, refer to Figure 7 and Figure 9 The fixed beam 4 has a through hole 44 at the end away from the outer wall for the head of the expansion nail to pass through, and a sealing cap 441 is installed in the through hole 44.

[0081] It is understandable that the through hole 44 is positioned opposite to the fixing hole 42 so that the expansion pin can be inserted into the fixing hole 42 through the through hole 44.

[0082] Because the fixed beam 4 has a through hole 44 at the end facing away from the outer wall, the head of the expansion bolt used to fix the fixed beam 4 to the outer wall can enter the receiving cavity 43 through the through hole 44, so as to ensure that the head of the expansion bolt can be hidden in the receiving cavity 43, thus ensuring the appearance quality of the outer wall sandwich insulation structure. After the fixed beam 4 is fixed with expansion bolts, the sealing cover 441 is installed to seal the through hole 44, thereby further improving the aesthetics of the outer wall sandwich insulation structure and increasing the sealing of the receiving cavity 43 to prevent dust or insects from entering the receiving cavity 43.

[0083] This application does not specify the connection method between the sealing cap 441 and the through hole 44. Preferably, refer to... Figure 8 The sealing cap 441 has a groove-shaped structure extending circumferentially along its periphery. A sealing ring 442 is disposed within this groove-shaped structure. After the sealing cap 441 is installed into the through hole 44, the sealing ring 442 deforms and abuts against the wall of the through hole 44, thus achieving a fixed connection between the sealing cap 441 and the wall of the through hole 44 through an interference fit. In other embodiments, the sealing cap 441 can also be fixedly connected to the wall of the through hole 44 by means of sealing adhesive.

[0084] Furthermore, refer to Figure 8 The cavity wall of the receiving cavity 43 is provided with a stop rib 432, which extends circumferentially along the through hole 44. After the sealing cover 441 is installed into the through hole 44, the inner end face of the sealing cover 441 abuts against the stop rib 432, so as to limit the sealing cover 441 by the stop rib 432, so as to prevent the sealing cover 441 from directly entering the receiving cavity 43 through the through hole 44. This increases the connection stability between the sealing cover 441 and the hole wall of the through hole 44, and at the same time ensures that after the sealing cover 441 is installed into the through hole 44, the outer end face of the sealing cover 441 can be flush with the end face of the fixed beam 4 away from the outer wall.

[0085] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0086] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0087] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. An external wall sandwich insulation structure, characterized in that, The device includes an insulation layer (1) and a metal panel (2) disposed outside the insulation layer (1). One end of the metal panel (2) in the width direction is recessed inward to form a connecting groove (21). The two opposite groove walls of the connecting groove (21) are provided with limiting holes (211). The other end of the metal panel (2) in the width direction protrudes outward to form a rib (22). The rib (22) is adapted to the shape of the connecting groove (21). The rib (22) is provided with a limiting component (3). The limiting component (3) includes a limiting block (31) protruding from the rib (22). The limiting block (31) can extend into the limiting hole (211).

2. The outer wall sandwich heat insulation structure according to claim 1, characterized in that, The limiting block (31) has a guide surface (311) on the side away from the connecting groove (21), and the guide surface (311) is inclined towards the outside of the protruding rib (22) in the direction close to the connecting groove (21).

3. The outer wall sandwich thermal insulation structure according to claim 1, characterized in that, The limiting component (3) further includes a limiting tube (32) disposed inside the rib (22) and an elastic element (33) disposed inside the limiting tube (32). Two limiting blocks (31) are arranged opposite each other, and both limiting blocks (31) are slidably connected to the limiting tube (32) so that each limiting block (31) has a limiting position that is at least partially protruding from the rib (22) and an avoidance position that is completely hidden in the limiting tube (32). The elastic element (33) acts on the two limiting blocks (31), and when the limiting block (31) is in the avoidance position, the elastic element (33) undergoes elastic deformation and applies an elastic force toward the limiting position to the limiting block (31).

4. The outer wall sandwich thermal insulation structure according to claim 3, characterized in that, The side of the limiting block (31) is provided with a positioning groove (312), and the inside of the limiting tube (32) is provided with a positioning rib (321) extending into the positioning groove (312). When the limiting block (31) is in the limiting position, the positioning rib (321) abuts against the inner end wall of the positioning groove (312).

5. The outer wall sandwich thermal insulation structure according to claim 3, characterized in that, The rib (22) has receiving holes (221) on both sides opposite to each other. One end of the limiting tube (32) is provided with a blocking piece (322) located in one of the receiving holes (221), and the other end of the limiting tube (32) is engaged with a fixing ring (323) located in the other receiving hole (221).

6. The outer wall sandwich thermal insulation structure according to claim 5, characterized in that, The inner circumferential surface of the fixing ring (323) is provided with a receiving notch (326), and a snap-fit ​​arm (327) is provided in the receiving notch (326). The snap-fit ​​arm (327) has a snap-fit ​​protrusion protruding from the inner circumferential surface of the fixing ring (323), and the outer circumferential surface of the limiting tube (32) is provided with a snap-fit ​​groove (324) for receiving the snap-fit ​​protrusion.

7. The outer wall sandwich thermal insulation structure according to claim 6, characterized in that, The end of the limiting tube (32) away from the blocking plate (322) is provided with a prompting groove (325), which is arranged opposite to the snap-fit ​​groove (324) in the axial direction of the limiting tube (32).

8. An external wall sandwich insulation structure according to any one of claims 1 to 7, wherein It also includes a fixing beam (4) located at the upper end of the length of the metal panel (2), the fixing beam (4) having a stop plate (41) located on the side of the metal panel (2) away from the outer wall, and the fixing beam (4) having a fixing hole (42) for expansion nails to pass through.

9. The outer wall sandwich thermal insulation structure according to claim 8, characterized in that, The fixed beam (4) is hollow inside to form a receiving cavity (43) for accommodating the expansion nail, and the fixing hole (42) is provided in the cavity wall of the receiving cavity (43).

10. The outer wall sandwich thermal insulation structure according to claim 9, wherein The fixed beam (4) is provided with a through hole (44) at the end away from the outer wall for the head of the expansion nail to pass through, and a sealing cap (441) is provided in the through hole (44).

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