Sound-insulation and heat-insulation building decoration composite wall interlayer attaching and connecting structure

Abstract

The invention relates to the technical field of buildings, and discloses a sound insulation and heat insulation building decoration composite wall interlayer fitting connection structure which comprises an indoor side wall, an outdoor side wall, a buffer connection layer, a sound insulation layer and a heat insulation layer. The buffering connecting layer, the sound insulation layer and the heat insulation layer are sequentially clamped between the indoor side wall body and the outdoor side wall body in the direction from the indoor space to the outdoor space, and the indoor side wall body and the outdoor side wall body are in elastic attaching locking connection through an interlayer linkage connecting assembly. Elastic attaching locking connection of the indoor side wall and the outdoor side wall is achieved through the interlayer linkage connecting assembly, temperature self-adaption sliding adjustment of the wedge-shaped triggering block is driven in cooperation with the memory alloy pushing piece, thermal expansion and cold contraction of interlayer materials can be automatically adapted according to environment temperature changes, interlayer expansion stress is effectively released, shrinkage gaps are eliminated, and the service life of the indoor side wall and the outdoor side wall is prolonged. Acoustic bridges and thermal bridges formed by cracking or gaps of the wall layer and the functional layer due to stress are avoided, and firmness and durability of interlayer connection are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of building technology, specifically to a sound-insulating and heat-insulating composite wall layer bonding and connection structure. Background Technology

[0002] With the development of industrialized construction and green building concepts, prefabricated composite walls have been widely used in civil and commercial building decoration projects due to their high construction efficiency and excellent sound and heat insulation performance. The interlayer connection structure of composite walls, as a core component ensuring the overall stability and sound and heat insulation effects of the wall, directly affects the wall's performance and service life. Currently, existing technologies mostly use single-clamp, bolt, or adhesive bonding methods for interlayer connections in composite walls. Some structures incorporate simple elastic buffers to accommodate minor interlayer displacements. While these connection structures can achieve basic interlayer fixation, they no longer meet the current comprehensive requirements of buildings for connection strength, temperature adaptability, and sound, heat, and energy conservation.

[0003] Existing bolt-fixed connection structures require specialized tools for fastening, resulting in cumbersome, time-consuming, and labor-intensive construction procedures that significantly reduce the construction efficiency of prefabricated walls. Furthermore, the metal material of bolts can easily create thermal and acoustic bridges between layers, disrupting the continuity and integrity of the sound and heat insulation layers. This leads to rapid heat and sound transfer between indoors and outdoors, increasing the energy consumption of building air conditioning, heating, and other temperature control systems, contradicting the principles of green and energy-efficient building design. While simple adhesive bonding methods do not require additional fixing components, their connection strength depends on the adhesive's bonding effect and is subject to long-term influence from environmental temperature and humidity, as well as interlayer stress. Problems such as delamination and interlayer separation are prone to occur, and the adhesive requires a certain amount of time to cure, making it impossible to achieve rapid bonding and fixing of wall layers. In addition, as the adhesive ages, gaps will form between the layers, further reducing the sound and heat insulation performance of the wall. Although traditional snap-fit ​​connection structures can achieve rapid assembly, they are mostly single snap-fit ​​designs with non-adjustable snap-fit ​​tightness, which can easily lead to problems such as loose snap-fit ​​and poor bonding. The formation of gaps between layers will also affect the sound and heat insulation effect. Furthermore, the existing snap-fit ​​structure does not form a linkage locking effect and cannot withstand the stress between layers in the vertical direction, resulting in poor connection stability and durability.

[0004] In summary, existing composite wall interlayer connection structures generally suffer from technical problems such as cumbersome construction operations, difficulty in balancing connection strength and ease of assembly, susceptibility to thermal and acoustic bridging, and poor sound insulation, heat insulation, and energy-saving effects. Therefore, those skilled in the art propose a sound-insulating and heat-insulating interlayer bonding structure for building decoration composite walls to solve these problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a sound-insulating and heat-insulating composite wall layer bonding connection structure, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure, comprising an interior side wall, an exterior side wall, a buffer connection layer, a sound insulation layer, and a heat insulation layer, wherein the buffer connection layer, the sound insulation layer, and the heat insulation layer are sequentially sandwiched between the interior side wall and the exterior side wall along the direction from the interior to the exterior, and the interior side wall and the exterior side wall are elastically bonded and locked together by an interlayer linkage connection component; The inter-layer linkage connection assembly includes several connecting seats fixed to one side of the outdoor wall. The connecting seats have connecting grooves inside, and a wedge-shaped trigger block that can slide laterally is elastically installed in the connecting grooves through a disc spring seat. The interior wall facing the exterior wall has an installation groove 1 that fits the connecting seat 1. A movable seat is elastically connected in the installation groove 1 by a connecting spring. Two limiting plates are symmetrically fixed on the outside of the movable seat. A limiting groove is opened in the inner wall of the connecting groove. An installation groove 2 is opened inside the connecting seat. Two movable blocks are rotatably connected inside the installation groove 2 by a rotating shaft. Two abutment plates slide through the top of the connecting seat.

[0007] Through the above technical solution, by sequentially arranging a buffer connection layer, a sound insulation layer, and a heat insulation layer between the indoor and outdoor side walls, the basic functions of sound insulation and heat insulation of the wall are achieved. At the same time, with the interlayer linkage connection component as the core, through the cooperation of components such as the connecting seat, wedge trigger block, movable seat, and movable block, combined with the elastic effect of the disc spring seat and the connecting spring, the elastic fit and locking connection between the indoor and outdoor side walls and each functional layer is achieved, ensuring the firmness of the interlayer connection, and also reserving buffer space for the deformation of the interlayer materials.

[0008] Preferably, the side of the wedge-shaped trigger block facing the movable block is provided with an arc-shaped guide structure. The arc-shaped guide structure is in contact with the outer surface of the movable block and is used to guide the movable block to unfold outwards along the rotation axis when the wedge-shaped trigger block slides laterally, so as to realize the fitting and locking of the indoor side wall and the outdoor side wall.

[0009] By utilizing the smooth transmission characteristics of the arc-shaped guide, the sliding of the wedge-shaped trigger block and the unfolding of the movable block are linked, allowing the movable block to closely abut against the inner wall of the installation groove on the interior side wall, forming a reliable interlayer locking effect and improving the firmness of the wall connection.

[0010] Preferably, two shape memory alloy pushers are symmetrically fixed inside the connecting groove. The two shape memory alloy pushers are positioned opposite each other on the side of the wedge-shaped trigger block away from the movable block. The telescopic output end of the shape memory alloy pusher is fixedly connected to a connecting seat. A connecting strip is movably connected inside the connecting seat. The end of the connecting strip away from the connecting seat is fixedly connected to the outer side of the wedge-shaped trigger block. The shape memory alloy pushers drive the connecting seat and the connecting strip to move the wedge-shaped trigger block laterally through thermal expansion and contraction, thereby achieving temperature adaptive adjustment of the interlayer connection.

[0011] By utilizing the thermal expansion and contraction characteristics of shape memory alloys, the wedge-shaped trigger block is driven to slide adaptively. The interlayer locking force can be adjusted according to changes in ambient temperature, adapting to the thermal expansion and contraction deformation of interlayer materials, effectively releasing expansion stress and eliminating shrinkage gaps.

[0012] Preferably, the connecting seat has an avoidance groove inside along the extension and retraction direction of the shape memory alloy pusher, and the end of the connecting strip near the connecting seat is slidably embedded in the avoidance groove, and the connecting strip can slide along the length direction of the avoidance groove.

[0013] Through the above technical solution, the connecting strip provides sliding space, avoiding rigid jamming between the shape memory alloy pusher and the wedge trigger block, and ensuring the smoothness and stability of the transmission of each component during temperature adaptive adjustment.

[0014] Preferably, the heat insulation layer has a plurality of connecting protrusions integrally formed on the side facing the sound insulation layer, and the sound insulation layer has connecting grooves that correspond to and fit the connecting protrusions one by one on the side facing the heat insulation layer. The connecting protrusions are tightly embedded in the connecting grooves to form a concave-convex interlocking and fitting structure. An energy-saving elastic adhesive is filled between the mating surfaces of the connecting protrusions and the connecting grooves. The energy-saving elastic adhesive is used to achieve elastic sealing and bonding between the connecting protrusions and the connecting grooves.

[0015] Through the above technical solution, the interlocking structure increases the bonding area between the heat insulation layer and the sound insulation layer. Combined with the sealing and bonding effect of the elastic adhesive, it improves the connection strength between the two functional layers, while eliminating gaps between layers and avoiding the formation of sound bridges and thermal bridges.

[0016] Preferably, the connecting boss has several through-hole micro-sound insulation and noise reduction holes evenly distributed inside.

[0017] The above technical solution can reflect and dissipate the sound energy transmitted between layers multiple times, weaken the intensity of sound energy transmission, and further enhance the overall sound insulation performance of the composite wall.

[0018] Preferably, the buffer connection layer is sandwiched between the sound insulation layer and the interior side wall, and a number of honeycomb units are evenly distributed on its outer surface facing the interior side wall. Each honeycomb unit has a honeycomb hole that runs through the thickness direction of the buffer connection layer. The honeycomb unit is used to disperse interlayer stress, and the honeycomb hole is used to achieve interlayer air permeability and drainage.

[0019] Through the above technical solutions, the honeycomb unit can effectively disperse the stress in the vertical and horizontal directions between layers, preventing the functional layers from cracking and falling off; the honeycomb holes form a breathable drainage channel, which can drain the condensate between layers and avoid the wall from becoming damp and affecting the heat insulation and sound insulation performance.

[0020] Preferably, each of the honeycomb pores is filled with aerogel insulating particles, which are used to enhance the insulating performance of the buffer bonding layer.

[0021] Through the above technical solution, without affecting the air permeability and drainage function of the buffer connection layer, the heat insulation effect of the buffer connection layer is greatly improved by utilizing the super heat insulation properties of aerogel heat insulation particles, forming a heat insulation synergy with the heat insulation layer and enhancing the overall heat insulation performance of the wall.

[0022] Preferably, the buffer connection layer, sound insulation layer and heat insulation layer are each provided with a plurality of clearance holes. The clearance holes correspond one-to-one with the connecting seat and the gaps are adapted. The end of the connecting seat away from the outdoor side wall passes through the clearance holes of the heat insulation layer, sound insulation layer and buffer connection layer in sequence and extends into the installation groove of the indoor side wall. The clearance holes are used to allow the connecting seat to achieve the adaptation and installation of the interlayer linkage connection component and the functional layer.

[0023] The above technical solution enables interference-free assembly of interlayer linkage components with each functional layer, ensuring a tight fit between each functional layer and the wall layer.

[0024] This invention provides a layer-by-layer bonding structure for sound-insulating and heat-insulating composite walls used in building decoration. It offers the following advantages: 1. This invention achieves elastic bonding and locking connection between the indoor and outdoor side walls through interlayer linkage connection components. It can complete rapid assembly without the need for bolts or adhesives, and the connection operation is convenient and the fit is firm. At the same time, it is combined with shape memory alloy push-type drive wedge trigger block for temperature adaptive sliding adjustment. It can automatically adapt to the thermal expansion and contraction of interlayer materials according to changes in ambient temperature, effectively release interlayer expansion stress, eliminate shrinkage gaps, and avoid sound bridges and thermal bridges formed between wall layers and functional layers due to stress cracking or interlayer gaps. This ensures the firmness and durability of the interlayer connection, and guarantees the stable performance of sound and heat insulation from the structural level. At the same time, it reduces the energy consumption of later maintenance due to structural damage and bonding failure, and achieves synergistic optimization of connection convenience, structural stability and temperature control energy saving.

[0025] 2. This invention utilizes a convex-concave interlocking structure between the heat insulation layer and the sound insulation layer, combined with a honeycomb-shaped buffer connection layer between the sound insulation layer and the interior side wall, to form a functional synergistic system. This enhances both sound and heat insulation while achieving multi-dimensional energy conservation. The connecting protrusions and grooves of the convex-concave interlocking structure are sealed and fitted together with an energy-saving elastic adhesive. The micro-sound-insulating and noise-reducing holes within the connecting protrusions further improve sound insulation performance. The elastic adhesive also accommodates interlayer displacement to prevent adhesion failure and reduce energy loss due to sound and heat exchange. The honeycomb units of the buffer connection layer effectively disperse interlayer stress, preventing cracking and detachment of the sound and heat insulation layers, extending the service life of the functional layers and reducing energy consumption during later maintenance. The honeycomb pores allow for interlayer ventilation and drainage, preventing condensation from causing a decrease in heat insulation performance, thus achieving a highly efficient synergy between structural function and energy conservation. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the wall structure of the present invention; Figure 3 This is a schematic diagram of the heat insulation layer structure of the present invention; Figure 4 This is a schematic diagram of the buffer connection layer structure of the present invention; Figure 5 This is a schematic diagram of the second structure of the wall in this invention; Figure 6 for Figure 2 Enlarged view of point A in the image; Figure 7 This is a schematic diagram of the internal structure of the connecting groove of the present invention; Figure 8 This is a schematic diagram of the wedge-shaped trigger block structure of the present invention; Figure 9 This is a cross-sectional view of the connector of the present invention.

[0027] The components are as follows: 1. Indoor side wall; 2. Outdoor side wall; 3. Buffer connection layer; 4. Sound insulation layer; 5. Heat insulation layer; 6. Connecting boss; 7. Honeycomb unit; 8. Honeycomb hole; 9. Connecting groove; 10. Connecting seat; 11. Connecting slot; 12. Connecting spring; 13. Movable seat; 14. Limiting plate; 15. Limiting slot; 16. Disc spring seat; 17. Wedge trigger block; 18. Shape memory alloy pusher; 19. Connecting strip; 20. Connecting seat; 21. Mounting slot one; 22. Movable block; 23. Abutment plate; 24. Mounting slot two; 25. Tension spring. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see the appendix Figure 1 - Appendix Figure 9 This invention provides a sound-insulating and heat-insulating composite wall structure for building decoration with interlayer bonding and connection. This structure achieves elastic bonding and locking between the indoor side wall 1 and the outdoor side wall 2 through modular functional layer layout and adaptive interlayer linkage connection components. At the same time, through the collaborative design of multi-layer functional structures, it enhances the overall sound insulation and heat insulation performance of the wall and adapts to the deformation of interlayer materials caused by changes in ambient temperature. It solves the problems of weak connection, easy decay of sound insulation and heat insulation effect, and poor temperature adaptability of traditional composite walls from the structural level. This soundproof and heat-insulating composite wall structure for building decoration includes an interior wall 1, an exterior wall 2, and a buffer connection layer 3, a sound insulation layer 4, and a heat insulation layer 5 sandwiched between them. The buffer connection layer 3, sound insulation layer 4, and heat insulation layer 5 are arranged sequentially from the interior to the exterior, forming a functional protection system from the inside out. The interior wall 1 and the exterior wall 2 are elastically bonded and locked together by evenly distributed interlayer linkage connection components. These components penetrate each functional layer and achieve precise fit, ensuring the overall fit and connection stability between the wall layers and the functional layers. The materials used in the buffer connection layer 3, sound insulation layer 4, and heat insulation layer 5 must meet national standards for environmental protection, fire resistance, and aging resistance of building decoration materials, and be suitable for use in both residential and commercial buildings.

[0030] The core structure of this invention is an interlayer linkage connection component and a multi-layer functional bonding structure. The interlayer linkage connection component is evenly distributed in the connection area of ​​the wall, and its layout density is adapted and adjusted according to the load-bearing requirements and size specifications of the building wall to ensure that the force at each connection point is uniform. The buffer connection layer 3, sound insulation layer 4, and heat insulation layer 5 are integrated functional layer combinations and are tightly bonded to the indoor side wall 1 and the outdoor side wall 2. Each layer achieves mechanical interlocking and sealing bonding through a dedicated bonding structure. With the locking effect of the interlayer linkage connection component, gaps between layers are eliminated, and the formation of sound bridges and thermal bridges is avoided. At the same time, the structural design of each functional layer further enhances the performance of sound insulation, heat insulation, and stress resistance, achieving a dual improvement in structural stability and functionality.

[0031] The inter-layer linkage connection assembly is the core component for achieving elastic fitting and locking between the indoor side wall 1 and the outdoor side wall 2. It includes several connecting seats 10 fixed to the indoor side of the outdoor side wall 2. Each connecting seat 10 is a rigid metal structure, and its shape and size are customized according to the wall thickness and connection strength requirements. The connecting seats 10 are evenly arranged in a matrix or row-column pattern to ensure uniform force distribution during connection. An axial connecting groove 11 is provided inside each connecting seat 10. The connecting groove 11 provides installation and movement space for components such as the wedge-shaped trigger block 17 and the shape memory alloy pusher 18. The wedge-shaped trigger block 17, which can slide laterally, is elastically installed within the connecting groove 11 via a disc spring seat 16. The disc spring seat 16 provides elastic rebound force to the wedge-shaped trigger block 17, ensuring smooth sliding and reliable resetting. The shape memory alloy pusher 18 is preferably a nickel-titanium (Ni-Ti) shape memory alloy.

[0032] The interior wall 1 facing the exterior wall 2 has an installation groove 21 that matches the connecting seat 10. The inner diameter of the installation groove 21 matches the outer diameter of the connecting seat 10, enabling precise insertion and positioning of the connecting seat 10. A movable seat 13 is elastically connected to the installation groove 21 via a connecting spring 12. The connecting spring 12 is arranged axially along the installation groove 21, with its two ends fixedly connected to the bottom of the installation groove 21 and the end face of the movable seat 13, respectively, providing elastic buffering and restoring force for the movable seat 13. The movable seat 13 is a ring structure that matches the installation groove 21, with two symmetrically fixed limiting plates 14 on its outer side. Correspondingly, the inner wall of the connecting groove 11 has a limiting groove 15 that matches the limiting plates 14. The cooperation between the limiting plates 14 and the limiting grooves 15 achieves pre-limiting of the connecting seat 10 and the movable seat 13, preventing misalignment during insertion and ensuring the accuracy of the initial connection.

[0033] The connecting seat 10 also has a second mounting groove 24 that communicates with the connecting groove 11. Inside the second mounting groove 24, two movable blocks 22 are rotatably connected by a rotating shaft. The two movable blocks 22 are arranged symmetrically and can rotate around the rotating shaft in opposite directions or towards each other. The two movable blocks 22 are elastically connected by a tension spring 25. The two ends of the tension spring 25 are fixedly connected to the inner end faces of the two movable blocks 22 respectively. The tension spring 25 is always in a pre-stretched state, providing a continuous opposing tension for the two movable blocks 22. This allows the movable blocks 22 to remain in a naturally closed state when there is no external force, fitting snugly inside the second mounting groove 24. This prevents the movable blocks 22 from shaking randomly and affecting the assembly accuracy, while also providing the core elastic driving force for the reset of the movable blocks 22. Two abutment plates 23 are slidably provided on the top of the connecting seat 10. The lower end of the abutment plate 23 extends into the mounting groove 24 and fits against the upper surface of the movable block 22. The abutment plate 23 can slide along the vertical direction of the connecting seat 10. Its sliding movement can overcome the tension of the tension spring 25 and drive the movable block 22 to rotate around the pivot, providing triggering conditions for the sliding and locking action of the wedge trigger block 17.

[0034] The wedge-shaped trigger block 17 facing the movable block 22 is provided with an arc-shaped guide structure. This arc-shaped guide structure fits against the outer surface of the movable block 22. When the wedge-shaped trigger block 17 slides laterally in the connecting groove 11, the guiding effect of the arc-shaped guide structure can overcome the opposing tension of the tension spring 25 and guide the two movable blocks 22 to unfold outwards and backwards along the rotation axis. After unfolding, the movable blocks 22 tightly abut against the inner wall of the mounting groove 21. The reaction force of the abutment is used to connect the indoor wall 1 with the outdoor wall 22. The wall 2 is fitted and locked, and the elastic action of the connecting spring 12 and the disc spring seat 16 is used to achieve elastic locking, which reserves buffer space for interlayer deformation. When the wedge trigger block 17 slides in the opposite direction, the guiding force on the movable block 22 is weakened. Under the action of the opposing tension of the tension spring 25, the two movable blocks 22 quickly retract and reset, reducing the tightness of the contact between the movable block 22 and the inner wall of the mounting groove 21, realizing flexible adjustment of the interlayer locking force, and avoiding structural wear caused by hard reset.

[0035] To achieve adaptive temperature adjustment between layers, two shape memory alloy pushers 18 are symmetrically fixed inside the connecting groove 11. These two pushers 18 are positioned opposite each other on the side of the wedge-shaped trigger block 17 away from the movable block 22. The shape memory alloy pushers 18 are made of shape memory alloy, possessing the characteristic of expanding and contracting with temperature changes. The temperature threshold for their expansion and contraction is set according to the ambient temperature range of the building, adapting to different regional climate conditions. A connecting seat 20 is fixedly connected to the expansion and contraction output end of the shape memory alloy pusher 18. A connecting strip 19 is movably connected inside the connecting seat 20. The end of the connecting strip 19 away from the connecting seat 20 is fixedly connected to the outer side of the wedge-shaped trigger block 17. An clearance groove is formed inside the connecting seat 20 along the expansion and contraction direction of the shape memory alloy pusher 18. The end of the connecting strip 19 near the connecting seat 20 is slidably embedded in the clearance groove and can slide along the length of the clearance groove. This structure prevents rigid jamming between the shape memory alloy pushers 18 and the wedge-shaped trigger block 17, ensuring smooth temperature adjustment. The shape memory alloy pusher 18 drives the connecting seat 20 and the connecting strip 19 to move the wedge trigger block 17 laterally in the connecting groove 11 through thermal expansion and contraction, thereby adjusting the degree of unfolding of the movable block 22 and realizing the adaptive adjustment of the interlayer locking force to adapt to the thermal expansion and contraction of the interlayer material.

[0036] To ensure the proper installation of the interlayer linkage connection components with each functional layer, several clearance holes are provided on the buffer connection layer 3, sound insulation layer 4, and heat insulation layer 5. These clearance holes correspond one-to-one with the connecting seat 10, and the gaps are appropriately matched. The inner diameter of the clearance hole is slightly larger than the outer diameter of the connecting seat 10, providing passage space for the connecting seat 10 while preventing hard friction between the connecting seat 10 and each functional layer. The end of the connecting seat 10 furthest from the outdoor wall 2 passes sequentially through the clearance holes of the heat insulation layer 5, sound insulation layer 4, and buffer connection layer 3, extending into the mounting groove 21 of the indoor wall 1. This achieves interference-free assembly of the interlayer linkage connection components with each functional layer, ensuring a tight fit between the functional layers and preventing thermal or acoustic bridges between the connecting seat 10 and the functional layers.

[0037] The heat insulation layer 5 is made of high-strength heat insulation material, and its thickness is set according to the building's heat insulation requirements and regional climate conditions. The sound insulation layer 4 is made of high-density sound insulation damping material (preferably butyl rubber composite high-density damping board), which is tightly bonded to the heat insulation layer 5 to form a double protection of sound insulation and heat insulation. To enhance the bonding and connection stability between the heat insulation layer 5 and the sound insulation layer 4, and to improve the sound insulation and heat insulation effect, several connecting protrusions 6 are integrally formed on the side of the heat insulation layer 5 facing the sound insulation layer 4. The connecting protrusions 6 are evenly distributed and have a rectangular or trapezoidal cross-section, which has good interlocking performance. Correspondingly, the side of the sound insulation layer 4 facing the heat insulation layer 5 has connecting grooves 9 that are adapted to the connecting protrusions 6 one by one. The connecting protrusions 6 are tightly embedded in the connecting grooves 9 to form a concave-convex interlocking structure. This structure greatly increases the bonding area between the heat insulation layer 5 and the sound insulation layer 4, effectively avoids gaps between the layers, and improves the connection firmness of the two layers, preventing separation between the layers.

[0038] The mating surfaces of the connecting boss 6 and the connecting groove 9 are filled with an energy-saving elastic adhesive (preferably a single-component silicone-modified polyurethane elastic adhesive). This adhesive combines elasticity, adhesion, and sound and heat insulation properties, achieving an elastic seal between the connecting boss 6 and the connecting groove 9, further eliminating interlayer gaps, blocking the transmission path of sound and heat, and adapting to the slight displacement caused by temperature changes between layers, avoiding bonding failure due to interlayer deformation, and ensuring the long-term stability of the sound and heat insulation effect. Simultaneously, the connecting boss 6 has several uniformly distributed through-hole micro-sound insulation and noise reduction holes. These micro-porous holes can reflect and dissipate the sound energy transmitted to the interlayer multiple times, weakening the intensity of sound energy transmission, further enhancing the sound insulation performance of the sound insulation layer 4, and achieving a synergistic improvement in mechanical interlocking and sound insulation functions.

[0039] The buffer connection layer 3 is sandwiched between the sound insulation layer 4 and the interior wall 1. It is made of elastic buffer material (preferably closed-cell EPDM rubber foam board or polyurethane soft foam elastic material), and has multiple functions of buffering, breathability, and heat insulation. Its thickness is set according to the buffering requirements of the wall and the magnitude of interlayer stress. Several honeycomb units 7 are evenly distributed on the outer surface of the buffer connection layer 3 facing the interior wall 1. The honeycomb unit 7 has a hexagonal honeycomb structure, which has excellent stress dispersion performance. It can effectively disperse the stress in the vertical and horizontal directions between the layers, and prevent the sound insulation layer 4 and the heat insulation layer 5 from cracking or falling off due to the locking force of the interlayer linkage components or the stress caused by changes in ambient temperature. This improves the durability and service life of the functional layer connection.

[0040] Each honeycomb unit 7 has honeycomb holes 8 that extend along the thickness direction of the buffer connection layer 3. The honeycomb holes 8 are interconnected, forming a breathable and drainage channel between layers. This allows for the rapid drainage of condensate caused by temperature and humidity changes between layers, preventing the sound insulation layer 4 and the heat insulation layer 5 from becoming damp and moldy, thus ensuring the long-term stability of the wall's sound and heat insulation performance. At the same time, the breathable structure enables micro-airflow circulation between layers, regulating the temperature and humidity environment between layers, further optimizing the wall's thermal performance, and helping to reduce energy consumption for indoor temperature control in buildings. To further enhance the thermal insulation performance of the buffer connection layer 3, each honeycomb hole 8 is filled with aerogel thermal insulation particles. The aerogel thermal insulation particles have the characteristics of being ultra-lightweight and highly thermally insulating. They can significantly improve the thermal insulation effect of the buffer connection layer 3 without affecting the ventilation and drainage function of the honeycomb holes 8. This allows the buffer connection layer 3 to have multiple functions of stress dispersion, ventilation and drainage and thermal insulation. Together with the sound insulation layer 4 and the thermal insulation layer 5, it forms a synergistic functional protection system. In this invention, the aerogel thermal insulation particles are preferably silica (SiO2) aerogel composite thermal insulation particles.

[0041] In the overall assembly of the sound-insulating and heat-insulating building decoration composite wall layer bonding connection structure of the present invention, the heat insulation layer 5 is first bonded to the inner surface of the exterior wall 2, ensuring that the connecting seat 10 accurately passes through the clearance hole of the heat insulation layer 5; then, the connecting groove 9 of the sound insulation layer 4 is precisely aligned with the connecting protrusion 6 of the heat insulation layer 5, so that the connecting protrusion 6 is tightly embedded in the connecting groove 9, and the energy-saving elastic adhesive between the bonding surfaces achieves a sealed bond between the two; next, the buffer connecting layer 3 is bonded to the inner surface of the sound insulation layer 4, ensuring that the connecting seat 10... Passing through the clearance holes of the sound insulation layer 4 and the buffer connection layer 3 in sequence, the outer surface of the buffer connection layer 3 is tightly attached to the sound insulation layer 4, and the inner surface is initially attached to the outer surface of the indoor side wall 1; finally, the mounting groove 21 of the indoor side wall 1 and the connecting seat 10 are precisely aligned one by one, and the indoor side wall 1 is pushed to move towards the outdoor side wall 2, so that the connecting seat 10 extends into the mounting groove 21. The elastic fitting and locking of the indoor side wall 1 and the outdoor side wall 2 are completed through the interlayer linkage connection component, realizing the integrated assembly of each layer structure.

[0042] The interlocking structure of the thermal insulation layer 5 and the sound insulation layer 4, combined with an energy-saving elastic adhesive and micro-insulation and noise-reducing holes, enhances the sound and heat insulation effects and improves the bonding stability. The honeycomb units 7 and honeycomb holes 8 of the buffer connection layer 3 achieve multiple functions such as interlayer stress dispersion, air permeability and drainage, and heat insulation, ensuring the durability and performance of each functional layer. The cooperation and synergy between the various structures give the composite wall multiple advantages, including strong connection, temperature adaptability, excellent sound and heat insulation, and high durability, meeting the comprehensive needs of modern buildings for green energy saving and structural stability.

[0043] Working principle: The connector 10 on the outdoor wall 2 is aligned with the mounting groove 21 on the indoor wall 1 and inserted. As the connector 10 extends into the mounting groove 21, the movable seat 13 of the indoor wall 1 is pressed by the connector 10, which drives the connecting spring 12 to be initially compressed until the limiting plate 14 on the outside of the movable seat 13 is inserted into the limiting groove 15 on the inner wall of the connecting groove 11, thus completing the pre-limiting of the connector 10 and the movable seat 13 and realizing the initial docking of the two walls, avoiding misalignment during the insertion process. Continue pushing the connecting seat 10 into the mounting slot 21. The abutment plate 23 at the top of the connecting seat 10 fully abuts against the outer surface of the movable seat 13 and is subjected to a reverse force. It slides down along the through hole at the top of the connecting seat 10. During the downward movement of the abutment plate 23, it pushes the two movable blocks 22 in the mounting slot 24 to unfold outward and back around the rotation axis. When the movable blocks 22 unfold to abut against the inner wall of the connecting slot 11, it provides the triggering condition for the lateral sliding of the wedge trigger block 17. As the connecting seat 10 continues to penetrate deeper, the movable seat 13 further compresses the connecting spring 12 and generates a rebound force. At the same time, the limiting plate 14 disengages from the limiting groove 15, releasing the obstruction to the wedge-shaped trigger block 17. Under the elastic force of the disc spring seat 16, the wedge-shaped trigger block 17 slides laterally. Its arc-shaped guide structure facing the movable block 22 fits against the outer surface of the movable block 22, guiding the movable block 22 to further expand outward and tightly abut against the inner wall of the mounting groove 21. Utilizing the abutment reaction force between the movable block 22 and the mounting groove 21, the indoor side wall 1 and the outdoor side wall 2 are pressed together towards the middle. With the elastic rebound force of the connecting spring 12 and the disc spring seat 16, the elastic fit and locking of the two walls are achieved, ensuring the firmness and buffering of the connection. When the ambient temperature rises, the materials of each layer of the composite wall, especially the heat insulation layer 5 and the sound insulation layer 4, expand due to heat, and there is expansion stress between the layers. At this time, the shape memory alloy pusher 18 in the connecting groove 11 expands due to heat, and its telescopic output end pushes the connecting seat 20 to move towards the wedge trigger block 17. The connecting seat 20 drives the wedge trigger block 17 to slide along the connecting groove 11 away from the movable block 22 through the connecting strip 19, and the disc spring seat 16 is compressed. After the wedge trigger block 17 slides, the guiding force on the movable block 22 is weakened, the tightness of the contact between the movable block 22 and the inner wall of the installation groove 21 is reduced, and the locking force of the interlayer connection is appropriately released, providing displacement space for the thermal expansion of the interlayer materials, offsetting the interlayer expansion stress, and preventing the wall layer and functional layer from cracking due to compression.

[0044] When the ambient temperature drops, the interlayer material shrinks due to the cold, which can easily create gaps between the layers. At this time, the shape memory alloy pusher 18 shrinks due to the cold, and the pushing force on the connecting seat 20 disappears. Under the elastic rebound force of the disc spring seat 16, the wedge trigger block 17 slides along the connecting groove 11 towards the moving block 22. Its arc-shaped guide structure pushes the moving block 22 outward again, increasing the tightness of the contact between the moving block 22 and the inner wall of the mounting groove 21. This pulls the indoor wall 1 and the outdoor wall 2 further towards the middle, eliminating the gaps caused by the shrinkage between the layers, ensuring the tight fit between the sound insulation layer 4, the heat insulation layer 5 and the wall layer, and preventing the formation of sound bridges and thermal bridges by the gaps. The relief groove inside the connecting seat 20 along the telescopic direction of the shape memory alloy pusher 18 provides sliding space for the connecting bar 19. When the wedge trigger block 17 is driven to slide by the disc spring seat 16, the connecting bar 19 can slide adaptively along the relief groove to avoid rigid jamming between the shape memory alloy pusher 18 and the wedge trigger block 17, thus ensuring the smoothness of the temperature regulation action. The connecting protrusion 6 of the heat insulation layer 5 facing the sound insulation layer 4 is tightly embedded in the connecting groove 9 of the sound insulation layer 4, forming a concave-convex interlocking structure, increasing the bonding area between the heat insulation layer 5 and the sound insulation layer 4. With the help of the energy-saving elastic adhesive between the bonding surfaces, the two functional layers are elastically sealed and bonded, avoiding gaps between the layers. The uniformly opened through-type micro sound insulation and noise reduction holes inside the connecting protrusion 6 can reflect and dissipate the sound energy transmitted to the interlayer multiple times, enhancing the sound insulation effect of the sound insulation layer 4. The energy-saving elastic adhesive has elasticity, adhesion and sound and heat insulation properties, which not only ensures the connection of the concave-convex interlocking structure, but also blocks the heat and sound transmission between the layers, further improving the sound and heat insulation effect.

[0045] The buffer connection layer 3 is sandwiched between the sound insulation layer 4 and the interior wall 1. The honeycomb units 7 evenly distributed on its outer surface can effectively disperse the stress in the vertical and horizontal directions between the layers, preventing the sound insulation layer 4 and the heat insulation layer 5 from cracking or falling off due to the locking force of the interlayer linkage components or changes in ambient temperature, thus improving the durability of the functional layer connection. At the same time, the interlayer ventilation and drainage channels formed by the honeycomb holes 8 can quickly drain the interlayer condensate, preventing the thermal performance of the sound insulation and heat insulation layer 5 from decaying due to dampness and mold on the wall, ensuring the long-term stability of the wall's heat insulation performance, and avoiding the increase in temperature control energy consumption due to the decrease in heat insulation effect. Moreover, the ventilation structure can realize the interlayer micro-airflow circulation, regulate the interlayer temperature and humidity environment, further optimize the wall's thermal performance, help reduce indoor energy consumption, and achieve the dual energy-saving effect of passive energy saving and active heat insulation.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sound-insulating and heat-insulating composite wall layer bonding and connection structure, characterized in that, It includes an indoor side wall (1), an outdoor side wall (2), a buffer connection layer (3), a sound insulation layer (4), and a heat insulation layer (5). The buffer connection layer (3), the sound insulation layer (4), and the heat insulation layer (5) are sequentially sandwiched between the indoor side wall (1) and the outdoor side wall (2) in the direction from indoor to outdoor. The indoor side wall (1) and the outdoor side wall (2) are elastically fitted and locked together by an interlayer linkage connection component. The inter-layer linkage connection assembly includes several connecting seats (10) fixed to one side of the outdoor side wall (2). The connecting seat (10) has a connecting groove (11) inside. A wedge-shaped trigger block (17) that can slide laterally is elastically installed in the connecting groove (11) through a disc spring seat (16). The interior wall (1) facing the exterior wall (2) has an installation groove (21) that is adapted to the connecting seat (10). The installation groove (21) is elastically connected to a movable seat (13) by a connecting spring (12). Two limiting plates (14) are symmetrically fixed on the outside of the movable seat (13). A limiting groove (15) is opened on the inner wall of the connecting groove (11). The connecting seat (10) has an installation groove (24) inside. Two movable blocks (22) are rotatably connected inside the installation groove (24) by a rotating shaft. Two abutment plates (23) slide through the top of the connecting seat (10).

2. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 1, characterized in that, The wedge-shaped trigger block (17) is provided with an arc-shaped guide structure on the side facing the movable block (22). The arc-shaped guide structure is in contact with the outer surface of the movable block (22) and is used to guide the movable block (22) to unfold outwards along the rotation axis when the wedge-shaped trigger block (17) slides laterally, so as to realize the fitting and locking of the indoor side wall (1) and the outdoor side wall (2).

3. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 1, characterized in that, Two shape memory alloy pushers (18) are symmetrically fixed inside the connecting groove (11). The two shape memory alloy pushers (18) are arranged opposite to each other on the side of the wedge trigger block (17) away from the movable block (22). The telescopic output end of the shape memory alloy pusher (18) is fixedly connected to the connecting seat (20). The connecting seat (20) is movably connected to the connecting strip (19). The end of the connecting strip (19) away from the connecting seat (20) is fixedly connected to the outside of the wedge trigger block (17). The shape memory alloy pusher (18) drives the connecting seat (20) and the connecting strip (19) to drive the wedge trigger block (17) to slide laterally through thermal expansion and contraction, thereby realizing the temperature adaptive adjustment of the interlayer connection.

4. The sound-insulating and heat-insulating composite wall layer bonding connection structure according to claim 3, characterized in that, The connecting seat (20) has an avoidance groove inside along the extension and retraction direction of the memory alloy pusher (18). The end of the connecting strip (19) near the connecting seat (20) is slidably embedded in the avoidance groove. The connecting strip (19) can slide along the length direction of the avoidance groove.

5. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 1, characterized in that, The heat insulation layer (5) has a plurality of connecting bosses (6) integrally formed on the side facing the sound insulation layer (4). The sound insulation layer (4) has connecting grooves (9) that correspond to and fit the connecting bosses (6) one by one on the side facing the heat insulation layer (5). The connecting bosses (6) are tightly embedded in the connecting grooves (9) to form a concave-convex interlocking and fitting structure. The mating surfaces of the connecting bosses (6) and the connecting grooves (9) are filled with an energy-saving elastic adhesive. The energy-saving elastic adhesive is used to achieve elastic sealing and bonding between the connecting bosses (6) and the connecting grooves (9).

6. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 5, characterized in that, The connecting boss (6) has several through-hole micro-insulation and noise reduction holes evenly distributed inside.

7. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 1, characterized in that, The buffer connection layer (3) is sandwiched between the sound insulation layer (4) and the interior side wall (1). Several honeycomb units (7) are evenly distributed on the outer surface of the buffer connection layer (1) facing the interior side wall (1). Each honeycomb unit (7) has a honeycomb hole (8) that runs through the thickness direction of the buffer connection layer (3). The honeycomb unit (7) is used to disperse the interlayer stress, and the honeycomb hole (8) is used to achieve interlayer ventilation and drainage.

8. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 7, characterized in that, Each of the honeycomb pores (8) is filled with aerogel insulating particles, which are used to enhance the insulating performance of the buffer connection layer (3).

9. The sound-insulating and heat-insulating building decoration composite wall interlayer bonding connection structure according to claim 1, characterized in that, The buffer connection layer (3), sound insulation layer (4) and heat insulation layer (5) are provided with several clearance holes. The clearance holes correspond one-to-one with the connecting seat (10) and the gaps are adapted. The end of the connecting seat (10) away from the outdoor side wall (2) passes through the clearance holes of the heat insulation layer (5), sound insulation layer (4) and buffer connection layer (3) in sequence and extends into the installation groove (21) of the indoor side wall (1). The clearance holes are used to avoid the connecting seat (10) to realize the adaptation and installation of the interlayer linkage connection component and the functional layer. The two movable blocks (22) are connected by a tension spring (25).

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