Built-in thermal insulation layer integrated into the eaves of curtain wall decoration line angle expansion anti-cracking installation structure

Abstract

The application belongs to the technical field of building curtain wall decoration components, and discloses an integrated forming curtain wall eave opening decoration line corner expansion anti-cracking mounting structure with an embedded heat preservation layer, which comprises two beam bodies, expansion joints formed between the two beam bodies, a support plate, a pressure bearing plate, a mud blocking net plate, a pressure applying bin, a sealing plate, a connecting piece, a guide pipe and an air inlet pipe, and the expansion joints reserved between the two beam bodies are matched with backing materials and sealant to provide sufficient release space for the main structure deformation and avoid excessive accumulation of stress at the joint; the gap cooperation between the fan-shaped rotating grooves at the bottom of the pressure bearing plate and the receiving rods allows the decoration line corner to produce a small adaptive swing in vertical or horizontal deformation, effectively avoiding the local tearing risk caused by rigid jamming. Meanwhile, the linkage design of the reset spring and the sealing plate not only absorbs part of the impact energy, but also ensures that the structure can smoothly return to the initial state after deformation through the elastic reset function, and the multiple measures synergistically act on the structure to orderly resolve the stress at the joint.

Description

Technical Field

[0001] This invention belongs to the technical field of building curtain wall decorative components, specifically a curtain wall eaves decorative line corner expansion and crack resistance installation structure with built-in insulation layer. Background Technology

[0002] The integrated, prefabricated curtain wall eaves decorative line corner expansion and crack-resistant installation structure refers to a prefabricated building component and its installation method. It is specifically designed for eaves and other parts of building curtain walls, achieving structural stability through specialized crack-resistant and expansion-resistant designs.

[0003] With the continuous improvement of building energy efficiency standards, external wall insulation systems have been widely adopted. However, traditional methods have significant shortcomings in complex nodes such as eaves and corner moldings. Decorative corner moldings are mostly installed on-site using GRC or EPS components, lacking an effective mechanism for coordinating expansion and contraction with the main structure. Under temperature stress and uneven settlement, cracks easily form at the joints of the corner moldings, affecting appearance and waterproofing performance. Furthermore, eaves are exposed to wind and rain for extended periods, and dust and rainwater easily accumulate inside the corner moldings, accelerating material aging and structural damage. Existing structures lack effective self-cleaning functions. Therefore, there is an urgent need for an integrated curtain wall eaves decorative corner expansion and crack-resistant installation structure with an internal insulation layer. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an integrated curtain wall eaves decorative line corner expansion and crack resistance installation structure with built-in insulation layer.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a one-piece molded curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer, comprising two beams, with an expansion joint formed between the two beams, and further comprising: The support plate is fixedly connected to one end of the two beams near the expansion joint; The pressure plate is movably connected to the top of multiple support plates; The mudguard mesh is fixedly connected to the two beams and is located on both sides of the bearing plate. The pressure chamber is fixedly connected to the upper surface of the support plate; A sealing plate is slidably connected to the pressure chamber, and multiple elastic elements are fixedly connected to the top of the sealing plate. The other end of the elastic elements is fixedly connected to the top wall of the inner cavity of the pressure chamber. The connector has one end rotatably connected to the top of the sealing plate and the other end rotatably connected to the lower end face of the support plate; The conduit is inserted into the pressure chamber, with its outlet end facing the lower end face of the mudguard mesh. The air intake pipe is inserted into the side wall of the pressurization chamber.

[0006] Preferably, the mudguard mesh plate has multiple through holes, each of which is frustum-shaped. The top of the mudguard mesh plate has multiple guide grooves, the bottom walls of which are inclined, and the guide grooves are inserted into the multiple through holes.

[0007] Preferably, the inner wall of the pressure chamber is inclined near the bottom, so that the lower part of the inner cavity of the pressure chamber is constricted.

[0008] Preferably, the bottom end of the pressure plate is provided with multiple rotating grooves, the longitudinal section of each rotating groove is fan-shaped, a supporting rod is inserted in the rotating groove, and one end of the connector is rotatably connected to the outside of the supporting rod.

[0009] Preferably, a receiving plate is fixedly connected to the top of the sealing plate, and multiple supports are fixedly connected to the top of the receiving plate. Connecting rods are inserted into the multiple supports and pass through the connecting parts.

[0010] Preferably, the sealing plate is made of a flexible material.

[0011] Preferably, the elastic element includes a return spring, one end of which is fixedly connected to the sealing plate and the other end is fixedly connected to the top wall of the pressure chamber.

[0012] Preferably, one-way valves are provided at both the end of the duct near the mudguard and the end of the air inlet pipe away from the pressure chamber.

[0013] Preferably, both the beam and the support plate have an internal insulation layer, which is precast and cast integrally with the beam and the support plate.

[0014] Preferably, the width of the expansion joint is 20mm-30mm, and the joint is filled with sealant and backing material.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. On the one hand, the expansion joints reserved between the two beams, along with the backing material and sealant, provide ample space for the release of structural deformation, avoiding excessive stress accumulation at the joints. On the other hand, the fan-shaped rotating groove at the bottom of the bearing plate and the clearance fit with the bearing rod allow the decorative line corner to produce slight adaptive swaying during vertical or horizontal deformation, effectively eliminating the risk of local tearing caused by rigid jamming. Simultaneously, the linkage design of the return spring and the sealing plate not only absorbs some of the impact energy but also ensures that the structure can smoothly return to its initial state after deformation through elastic reset. These multiple measures work together to orderly dissipate stress at the joints. 2. When the beam expands or contracts due to changes in temperature and humidity or wind loads, the up-and-down movement of the pressure plate drives the sealing plate to slide back and forth within the pressure chamber via a linkage mechanism, automatically completing a pneumatic cycle of intake-compression-jet. During this process, the contracting sidewall at the bottom of the pressure chamber and the frustum-shaped through-holes on the mudguard mesh form a two-stage airflow acceleration channel, allowing compressed air to precisely impact the mesh surface in the form of a high-speed jet. Combined with the inclined bottom wall of the guide channel, this efficiently flushes away accumulated dust and mud, guiding them to both sides for discharge. This system adaptively activates in real time with structural deformation, not only achieving self-cleaning of eaves corners exposed to wind and rain for extended periods, effectively preventing material erosion and freeze-thaw damage caused by rainwater and dust accumulation, but also completely eliminating the need for additional electric drive and manual high-altitude cleaning operations, significantly reducing maintenance costs and safety risks throughout the entire lifecycle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of part of the present invention; Figure 3 This is a top view of part of the structure of the present invention; Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention.

[0017] In the picture: 100. Beam structure; 110. Expansion joint; 111. Sealant; 112. Backing material; 200. Support plate; 300, mudguard mesh; 310, through hole; 320, flow guide channel; 400, pressure plate; 410, rotating groove; 420, support rod; 500. Pressure chamber; 510. Inclined sidewall; 600. Sealing plate; 610. Support plate; 620. Support; 630. Connecting rod; 700. Return spring; 800. Connectors; 900, catheter; 1000, intake pipe. Detailed Implementation

[0018] The technical solutions of 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.

[0019] like Figures 1 to 4 As shown, this invention provides an integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer, comprising two beams 100, which are directly installed on the surface of the main structure of the building, forming an expansion joint 110 between the two beams 100. The width of the expansion joint 110 is preferably 20mm-30mm, specifically determined based on the climate temperature difference and structural deformation calculations of the building's location. The expansion joint 110 is filled with sealant 111 and backing material 112. The backing material 112 is made of foamed polyethylene round rods with a diameter 1.3 times the joint width. The sealant 111 is applied in two layers to a depth of 50%-70% of the joint width.

[0020] Both beams 100 are fixedly connected to one end of the expansion joint 110 with a support plate 200. The support plate 200 is an L-shaped steel embedded part. The beams 100 and the support plate 200 are integrally cast in the factory prefabrication stage using special connectors (such as insulation tie parts) to ensure that the insulation layer is continuous and uninterrupted at the eaves corner.

[0021] The pressure plate 400 is movably connected to the top of multiple support plates 200. The pressure plate 400 is a rectangular steel plate, and its upper surface is used to install the integrally formed curtain wall eaves decorative line with built-in insulation layer. The bottom end of the pressure plate 400 has multiple rotating grooves 410, and the longitudinal section of each rotating groove 410 is fan-shaped. A support rod 420 is inserted into the rotating groove 410. The support rod 420 and the rotating groove 410 are clearance-fitted to ensure that the pressure plate 400 can rotate slightly around the support rod 420 when subjected to vertical deformation, avoiding rigid jamming.

[0022] The mud-blocking mesh 300 is fixedly connected to the two beams 100 and is located on both sides of the bearing plate 400. The mud-blocking mesh 300 is made of weathering steel and has multiple through holes 310, all of which are frustum-shaped, meaning the diameter gradually decreases from the bottom to the top (or is set according to the airflow direction; in this design, the airflow is sprayed from the bottom to the top, so the larger end is at the bottom and the smaller end is at the top). The top of the mud-blocking mesh 300 has multiple guide grooves 320, the bottom walls of which are inclined and intersect within the multiple through holes 310, used to guide the washed mud and water to both sides for discharge.

[0023] A pressure chamber 500 is also fixedly connected to the upper surface of the support plate 200. The pressure chamber 500 is a cylindrical sealed container, and its inner sidewall is inclined near the bottom (i.e., inclined sidewall 510), so that the lower part of the inner cavity of the pressure chamber 500 is constricted, with a constriction angle of 15-30 degrees. A sealing plate 600 is slidably connected inside the pressure chamber 500. The sealing plate 600 is a flexible rubber plate, and its outer edge is tightly fitted to the inner wall of the pressure chamber 500 to ensure airtightness. A receiving plate 610 is fixedly connected to the top of the sealing plate 600, and multiple supports 620 are fixedly connected to the top of the receiving plate 610. Connecting rods 630 are inserted into the multiple supports 620.

[0024] Multiple elastic elements are fixedly connected to the top of the sealing plate 600. In this embodiment, the elastic elements are return springs 700. One end of the return spring 700 is fixedly connected to the upper end face of the sealing plate 600, and the other end is fixedly connected to the top wall of the inner cavity of the pressure chamber 500. The return spring 700 is always in a compressed state (due to the weight of the sealing plate 600 and the receiving plate 610), providing initial sealing force.

[0025] The top of the sealing plate 600 is rotatably connected to a connector 800 via a support 620 and a connecting rod 630. The other end of the connector 800 is rotatably connected to a receiving rod 420, thus forming a rotating pair with the lower end face of the support plate 200. Figure 4 As shown, the connector 800 is a long strip steel connecting rod with round holes at both ends, which are respectively fitted onto the connecting rod 630 and the receiving rod 420.

[0026] Multiple conduits 900 are inserted within the pressure chamber 500, with the other end of each conduit 900 aligned with the lower end face of the mudguard 300, and the outlet of each conduit 900 aligned with the large end opening of the through hole 310. An air inlet pipe 1000 is also inserted through the side wall of the pressure chamber 500. A one-way valve is installed at the end of each conduit 900 near the mudguard 300, and a one-way valve is also installed at the end of each air inlet pipe 1000 away from the pressure chamber 500. The one-way valves ensure that air within the pressure chamber 500 can only be discharged through the conduit 900 in one direction, and prevent water from flowing back through the through hole 310; the one-way valves also prevent air from being discharged from the pressure chamber 500 through the air inlet pipe 1000 when the sealing plate 600 descends, ensuring that air can only be discharged through the conduit 900.

[0027] The working principle and usage process of this invention are as follows: When the building structure undergoes expansion and contraction due to wind loads, the width of the expansion joint 110 between the two beams 100 changes, causing the pressure plate 400 to move vertically relative to the support plate 200. When the pressure plate 400 descends, the connecting piece 800 is pulled downwards by the support rod 420, causing the sealing plate 600 to rise. The sealing plate 600 compresses the return spring 700, and simultaneously, the internal volume of the pressure chamber 500 increases, creating negative pressure. External air enters the pressure chamber 500 through the air inlet pipe 1000 and the one-way valve. When the pressure plate 400 rises, under the elastic force of the return spring 700 and the weight of the sealing plate 600, the sealing plate 600 descends, compressing the air inside the pressure chamber 500. The air is then ejected at high speed through the duct 900 and the one-way valve, impacting the lower end face of the mudguard mesh plate 300.

[0028] Because the bottom of the pressure chamber 500 is constricted, the airflow speed increases as it flows downwards. Simultaneously, the frustum-shaped through-hole 310 further accelerates the airflow. This high-speed airflow washes away dust and mud adhering to the mudguard 300 and discharges it to both sides through the inclined bottom wall of the guide channel 320, achieving automatic cleaning. Throughout the process, the amount of air entering equals the amount exiting, and the stroke of the sealing plate 600 is determined by the deformation amplitude, allowing the system to operate adaptively.

[0029] In terms of crack resistance, the expansion joint 110 provides the main deformation space, while the sealant 111 and backing material 112 play a sealing and buffering role; at the same time, the fan-shaped design of the connector 800 and the rotating groove 410 allows the pressure plate 400 to swing within a certain angle, avoiding rigid stress concentration; the elastic reset function of the return spring 700 can absorb part of the impact energy, and multiple measures work together to ensure that the structure does not crack in the long term.

[0030] During installation, the insulated beam 100 and support plate 200 are first prefabricated in the factory, and the sealing plate 600, return spring 700, and connector 800 inside the pressure chamber 500 are assembled. After hoisting into place on site, the two beams 100 are fixed in the designed position, with an expansion joint 110 reserved and filled with backing and sealant 111. Then, the mudguard mesh 300 is fixed to the inside of the beam 100, and the duct 900 and air inlet pipe 1000 are installed and connected with a one-way valve. Finally, the pressure plate 400 is installed, and the fit clearance between the support rod 420 and the rotating groove 410 is adjusted to ensure flexible movement. After all installation is completed, a functional test is performed to simulate expansion and contraction deformation to check whether the sealing plate 600 slides smoothly and whether the airflow is ejected normally.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] 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 one-piece molded curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer, comprising two beams (100) with an expansion joint (110) formed between the two beams (100), characterized in that: Also includes: A support plate (200) is fixedly connected to one end of the two beams (100) near the expansion joint (110); A pressure plate (400) is movably connected to the top of multiple support plates (200); The mudguard mesh (300) is fixedly connected to the two beams (100) and located on both sides of the bearing plate (400); The pressure chamber (500) is fixedly connected to the upper end face of the support plate (200); A sealing plate (600) is slidably connected inside the pressure chamber (500), and a plurality of elastic elements are fixedly connected to the top of the sealing plate (600), the other end of which is fixedly connected to the top wall of the inner cavity of the pressure chamber (500); The connector (800) has one end rotatably connected to the top of the sealing plate (600) and the other end rotatably connected to the lower end face of the support plate (200); The conduit (900) is inserted into the pressure chamber (500) and its outlet end is directly opposite the lower end face of the mudguard (300); The intake pipe (1000) is inserted into the side wall of the pressure chamber (500).

2. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 1, characterized in that: The mudguard mesh plate (300) has multiple through holes (310) inside, and the multiple through holes (310) are all frustum-shaped. The top of the mudguard mesh plate (300) has multiple guide grooves (320), the bottom walls of the multiple guide grooves (320) are inclined, and the multiple guide grooves (320) are inserted into the multiple through holes (310).

3. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 2, characterized in that: The inner wall of the pressure chamber (500) is inclined near the bottom, so that the lower part of the inner cavity of the pressure chamber (500) is constricted.

4. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 3, characterized in that: The pressure plate (400) has multiple rotating grooves (410) at its bottom end. The longitudinal section of each rotating groove (410) is fan-shaped. A support rod (420) is inserted into the rotating groove (410). One end of the connector (800) is rotatably connected to the outside of the support rod (420).

5. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 4, characterized in that: The sealing plate (600) is fixedly connected to the top of the receiving plate (610), and multiple supports (620) are fixedly connected to the top of the receiving plate (610). A connecting rod (630) is inserted inside the multiple supports (620), and the connecting rod (630) passes through the connector (800).

6. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 5, characterized in that: The sealing plate (600) is made of flexible material.

7. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 6, characterized in that: The elastic element includes a return spring (700), one end of which is fixedly connected to the sealing plate (600), and the other end is fixedly connected to the top wall of the inner cavity of the pressure chamber (500).

8. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 7, characterized in that: One-way valves are provided at the end of the duct (900) near the mudguard (300) and at the end of the air inlet pipe (1000) away from the pressure chamber (500).

9. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 8, characterized in that: Both the beam (100) and the support plate (200) have built-in insulation layers, which are precast and cast integrally with the beam (100) and the support plate (200).

10. The integrated curtain wall eaves decorative line corner expansion and crack-resistant installation structure with built-in insulation layer as described in claim 9, characterized in that: The expansion joint (110) is 20mm-30mm wide and is filled with sealant (111) and backing material (112).

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