Curtain wall node structure convenient to clean and construction method

Abstract

The invention discloses a curtain wall joint structure convenient to clean and a construction method, and belongs to the technical field of buildings. The structure comprises a keel main body which is fixed on a main wall body of a building; the pressing plate is mounted on the outer end face of the keel main body in parallel; the decorative keel is fixed on the pressing plate, and sealing plates are clamped on the two sides of the decorative keel; the curtain wall body is installed between the keel body and the pressing plate, one side edge of the curtain wall body coincides with one side edge of the pressing plate to form a corner, and an embedding groove is formed in the portion, close to the corner, of the curtain wall body; wherein the sealing plate is connected with a bendable transition plate, and the other end of the transition plate is connected with an embedding block. According to the curtain wall joint, the sealing plate and the transition plate are installed in a matched mode, the arc transition face which is concave inwards is formed at the corner between the decorative keel and the curtain wall body after the transition plate is bent, so that dust is not prone to being accumulated at the corner to cause pollution, and an operator can clean the curtain wall joint more conveniently.

Description

Technical Field

[0001] The present invention relates to a curtain wall node structure and a construction method that are convenient for cleaning, belonging to the field of building technology. Background Art

[0002] With the development of the building industry, curtain walls, as an important form of building facades, are widely used. The exterior of building curtain walls is easily contaminated and requires regular cleaning and maintenance to ensure the permeability and comfort of the building exterior and the internal environment.

[0003] Currently, the cleaning operations of building curtain walls are mainly manual cleaning and machine cleaning. However, most existing building curtain walls have corners, and it is difficult to completely clean the stains at the corner positions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a curtain wall node structure and a construction method that are convenient for cleaning, which solve the problem that it is difficult to clean the corner positions of building curtain walls in the prior art.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solutions: a curtain wall node structure and a construction method that are convenient for cleaning, a main keel body, fixed on the main wall of a building; a pressing plate, installed in parallel on the outer end face of the main keel body; a decorative keel, fixed on the pressing plate, with sealing plates clamped on both sides; a curtain wall main body, installed between the main keel body and the pressing plate, one side edge of the curtain wall main body coincides with one side edge of the pressing plate to form a corner, and an embedding groove is opened on the curtain wall main body near the corner; wherein, a bendable transition plate is connected to the sealing plate, and the other end of the transition plate is connected with an embedding block. After the embedding block is embedded in the embedding groove, the transition plate bends towards the outside of the corner to form an arc transition surface.

[0006] By adopting the above technical solutions, the cleaning of the entire curtain wall main body is more convenient. Through the arc transition surface formed by the transition plate, when operating personnel are cleaning, compared with the traditional right-angle corner, the possibility of interference between the cleaning tool and the arc transition surface is greatly reduced. At the same time, due to the setting of the arc transition surface, stains are not easily accumulated, and the external air flow can play a guiding role after passing through the arc transition surface. Secondly, since the bending direction of the transition plate is towards the outside of the corner, the elastic force generated by the transition plate is applied to the sealing plate and the curtain wall main body respectively through both ends of the transition plate, making the curtain wall main body and the sealing plate fit more tightly on their respective installation surfaces.

[0007] The present invention is further provided as: the embedding block includes a front part and a rear part, the front part is embedded in the embedding groove, both the front part and the rear part are right-angled trapezoids, and the outer side edge between the front part and the rear part is in a stepped shape, and the step height is equal to the thickness of the outer side wall surface of the embedding groove.

[0008] By adopting the above technical solution, the splicing block can be firmly embedded in the splicing groove, enhancing the structural stability and connection strength. It ensures the tight fit between the splicing block and the splicing groove, reducing the possibility of loosening and dislocation. It improves the assembly precision and enhances the durability and impact resistance of the overall structure.

[0009] The present invention is further configured as follows: The splicing groove includes groove one and groove two. Groove one is trapezoidal in shape and is used for clamping the front part of the splicing block. Groove two is rectangular in shape. A trapezoidal clamping block is slidably arranged in groove two. A spring plate is arranged between the back surface of the trapezoidal clamping block and the bottom surface of groove two. The trapezoidal clamping block is pushed out by the spring plate under normal conditions. When the splicing block is being clamped, the end of the splicing block pushes the trapezoidal clamping block to slide into the interior of groove two. After the end of the splicing block is clamped into groove one, the trapezoidal clamping block pops out of groove two again.

[0010] By adopting the above technical solution, the installation of the transition plate can be quickly achieved. After the splicing groove and the splicing block are mutually clamped, self-locking can be realized. Through the mutual fitting of the trapezoidal inclined surface at the front part and the inclined surface of the trapezoidal clamping block, the trapezoidal clamping block is pushed to contract into groove two. When the front part completely enters into groove one, the trapezoidal clamping block is pushed out by the spring plate again and abuts against the rear part, and mutually fits with the inclined surface on the rear part. By the trapezoidal clamping block being clamped into the inclined surface of the rear part, the whole splicing block can be prevented from disengaging from the splicing groove again. At the same time, the trapezoidal clamping block can stably fit with the rear inclined surface under the pressing action of the spring plate.

[0011] The present invention is further configured as follows: On the surface of the keel main body that fits with the curtain wall main body, symmetric connection structures are provided. A connecting piece is slidably clamped in the middle of the connection structure. The connecting piece and the pressing plate are connected by bolts.

[0012] By adopting the above technical solution, the symmetric connection structure is used in cooperation with the clamping piece. The operator fixes the pressing plate on the outer surface of the symmetric structure through bolts.

[0013] The present invention is further configured as follows: The connecting piece includes an M-shaped clamping plate and a triangular fixing plate. The M-shaped clamping plate and the triangular fixing plate are connected by an insertion plate with a conical cross-section.

[0014] By adopting the above technical solution, the connecting piece is inserted into the middle gap of the connection structure. By continuously rotating the bolt, the M-shaped clamping plate gradually fits with the two inwardly protruding arc surfaces on the connection structure. At the same time, the conical insertion plate continuously inserts into the middle gap of the connection structure. As the insertion depth increases, the connection between the conical insertion plate and the connection structure becomes tighter.

[0015] The present invention is further configured such that: splicing blocks are symmetrically arranged at the ends of the keel main body, a transverse keel is inserted and fixed on the splicing blocks, a load-bearing plate is arranged on the transverse keel, a straight groove is formed on the load-bearing plate, and a limiting cross beam is inserted into the straight groove.

[0016] By adopting the above technical solution, the load-bearing plate can provide a lifting force in the vertical direction for the curtain wall main body, and cooperate with the longitudinal pressing of the pressing plate, so as to realize the rapid installation of the curtain wall main body. A straight groove is formed on the load-bearing plate, and by inserting the limiting cross beam into the straight groove, the curtain wall main body can be further fixedly installed, reducing the risk of loosening of the curtain wall main body.

[0017] The present invention is further configured such that: the limiting cross beam is in a stepped shape, and a strip board for mutually clamping with the straight groove is arranged on the surface in contact with the transverse keel. The curtain wall main body includes an inner plate and an outer plate, and a gap is left between the inner plate and the outer plate. When the limiting cross beam is installed, the long side end of the stepped shape is clamped into the gap between the inner plate and the outer plate.

[0018] By adopting the above technical solution, no complex tools or additional fixing parts are required during installation, and it can be directly clamped into the gap between the inner plate and the outer plate, simplifying the installation process and reducing the construction difficulty. When a single limiting cross beam or curtain wall board is damaged, it can be disassembled and replaced separately without large-area demolition, reducing the maintenance cost and time.

[0019] The present invention is further configured such that: a triangular clamping strip is arranged on the clamping surface between the sealing plate and the decorative keel.

[0020] By adopting the above technical solution, the sealing plate can be quickly fixedly installed.

[0021] The present invention is further configured such that: a buffer elastic pad is arranged between the curtain wall main body and the pressing plate.

[0022] By adopting the above technical solution, it can absorb and weaken the sound wave vibration, reduce the influence of external noises (such as traffic noise, wind and rain sounds) on the indoor environment, and improve the comfort of the building. It can avoid the friction noise generated by vibration between the curtain wall main body and the pressing plate. The elastic pad can make up for the installation error between the curtain wall main body and the pressing plate, and improve the construction error tolerance rate.

[0023] A construction method for a curtain wall node structure convenient for cleaning includes the following construction steps: S1. Install the keel main body and fix the keel main body on the main wall of the building; S2. Install the main body of the curtain wall. Before installation, first lap the transverse keel at the lower end of the main keel. At the same time, snap the limit crossbeam into the straight groove on the transverse keel. At this time, after clamping the gap between the inner plate and the outer plate in the main body of the curtain wall with the stepped end of the limit crossbeam, the preliminary fixation of the main body of the curtain wall is achieved, and the two main bodies of the curtain wall are symmetrically arranged on the main keel; S3. Install the pressing plate. Connect the pressing plate through the through holes on the pressing plate with the connecting piece slidingly clamped in the connecting structure. Make the pressing plate fit with the main body of the curtain wall by turning the knob bolt. During the process of turning the knob bolt, the connecting piece continuously moves towards the pressing plate side, and the conical plug plate continuously inserts into the inner cavity of the connecting structure, squeezing the connecting structure to make the connecting structure engage with the M-shaped clamping plate; S4. Install the sealing plate. First, fix the decorative keel on the pressing plate, and then snap the sealing plate on the decorative keel through the triangular clamping block on the sealing plate. After the sealing plate is clamped and fixed, press the transition plate connected to the sealing plate towards the corner direction, so that the end of the transition plate bends towards the outside of the corner. At this time, snap the embedding block at the end of the transition plate into the embedding groove to complete the installation of the sealing plate. At this time, the transition plate forms an arc transition surface.

[0024] By adopting the above technical solutions, the installation and construction of the main body of the curtain wall can be realized quickly. The collaborative design of the limit crossbeam, the pressing plate and the sealing plate enhances the overall stability of the curtain wall system and its wind resistance and seismic resistance. The cooperation between the sealing plate and the transition plate effectively prevents rainwater, dust, etc. from infiltrating, improving the waterproofness and airtightness of the curtain wall. The arc transition surface formed after the installation of the transition plate can prevent a large amount of dust from gathering at the corner of the main body of the curtain wall. At the same time, the arc-shaped transition surface is more convenient for the operators to clean this place.

[0025] The beneficial effects of the present invention are as follows: Through the cooperative installation of the sealing plate and the transition plate, an inwardly concave arc transition surface is formed at the corner between the decorative keel and the main body of the curtain wall after the transition plate is bent, so that it is not easy for dust to gather and be polluted at the corner, and it is more convenient for the operators to clean the curtain wall nodes. At the same time, the arc transition surface replaces the right-angle corner, which is more conducive to the air flow guidance, greatly reducing the wind resistance received by the decorative keel at the connection point and improving the stability of the decorative keel.

[0026] By the cooperative use of the embedding groove and the embedding block, the installation of the arc plate can be realized quickly. During the installation process, only need to press the embedding block. After the front part of the embedding block is embedded into groove one, the inclined surfaces of the trapezoidal clamping block in groove two and the rear part are mutually attached to form a self-locking structure to prevent the embedding block from loosening and falling off. Description of the Drawings

[0027] Figure 1 It is a cross-sectional structure schematic diagram of the present invention; Figure 2 For the present inventionFigure 1 Enlarged schematic diagram of the splicing process of the splicing block at structure A in the present invention; Figure 3 For the present invention Figure 1 Enlarged schematic diagram after the splicing block at structure A in the present invention is spliced; Figure 4 Three-dimensional structure schematic diagram of the sealing plate and the transition plate of the present invention; Figure 5 For the present invention Figure 3 Enlarged schematic diagram of structure B in the present invention; Figure 6 Three-dimensional structure schematic diagram of the present invention; Figure 7 Cross-sectional schematic diagram of the keel main body and the connecting piece of the present invention; Figure 8 Schematic diagram of the connecting piece structure of the present invention; Figure 9 Side view of the present invention; Figure 10 Cross-sectional view of the limiting cross beam of the present invention.

[0028] In the figure: 1. Keel main body; 101. Connection structure; 2. Pressing plate; 3. Decorative keel; 4. Sealing plate; 401. Transition plate; 402. Splicing block; 4021. Front part; 4022. Rear part; 403. Triangular clamping strip; 5. Curtain wall main body; 501. Splicing groove; 5011. Groove 1; 5012. Groove 2; 502. Inner plate; 503. Outer plate; 6. Trapezoidal clamping block; 7. Spring plate; 8. Connecting piece; 801. M-shaped clamping plate; 802. Insertion plate; 803. Triangular fixing plate; 9. Splicing block; 10. Corner; 11. Transverse keel; 12. Limiting cross beam; 121. Clamping strip plate; 13. Buffer elastic pad; 14. Load-bearing plate; 15. Small arc segment; 16. Large arc segment; 17. Right-angle segment; 18. Clamping cavity; 19. Bolt hole; 20. Straight notch. Detailed implementation manners

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below with reference to specific drawings.

[0030] As Figure 1 and Figure 2As shown in the figure, a curtain wall node structure and construction method that are convenient for cleaning. The main keel 1 is fixed on the main wall of the building; the pressing plate 2 is installed in parallel on the outer end face of the main keel 1; the decorative keel 3 is fixed on the pressing plate 2, and sealing plates 4 are clamped on both sides; the curtain wall main body 5 is installed between the main keel 1 and the pressing plate 2. One side of the curtain wall main body 5 coincides with one side of the pressing plate 2 to form a corner 10. An embedding groove 501 is opened on the curtain wall main body 5 near the corner 10; among them, a bendable transition plate 401 is connected to the sealing plate 4, and the other end of the transition plate 401 is connected to an embedding block 402. When the embedding block 402 is embedded in the embedding groove 501, the transition plate 401 bends outward toward the corner 10 to form an arc transition surface.

[0031] During the entire installation process, the main keel 1 is fixed on the main wall by bolts, and several main keels 1 are arranged equidistantly on each main wall. The pressing plate 2 is connected to the main keel 1 by bolts. Several through holes are equidistantly opened in the vertical direction at the center of the pressing plate 2. After the bolts pass through the through holes, they are rotated into the bolt holes 19 on the main keel 1. The decorative keel 3 is used to install decorations such as light strips and is fixed on the pressing plate 2 by bolts.

[0032] After the curtain wall main body 5 is installed between the pressing plate 2 and the main keel 1, a ninety-degree corner 10 is formed between the decorative keel 3 and the pressing plate 2. By clamping the sealing plates 4 on both sides of the decorative keel 3, after the sealing plates 4 are clamped, the transition plates 401 connected to the sealing plates 4 are pressed in the direction of the corner 10, causing the transition plates 401 to bend. At the same time, the embedding blocks 402 connected to the ends of the transition plates 401 are inserted into the embedding grooves 501 on the curtain wall main body 5, so that the transition plates 401 completely seal the corner 10. By replacing the corner 10 with an arc transition surface, after the airflow blows through the arc transition surface, after being guided by the arc transition surface, it can move along the arc direction of the arc transition surface, which is beneficial to reducing the wind resistance generated by the entire decorative keel 3, improving the stability of the entire decorative keel 3, and at the same time reducing dust adhesion. Secondly, since the transition plates 401 are bent, reverse elastic forces will be generated at both ends. At the end connected to the embedding block 402, the generated elastic force is directed toward the curtain wall main body 5, and at the end connected to the sealing plate 4, the generated elastic force is directed toward the sealing plate 4. As a result, the elastic force generated after the transition plates 401 are bent can be used to further press the sealing plates 4 and the curtain wall main body 5, making the installation of the sealing plates 4 and the curtain wall main body 5 more stable and reducing the possibility of loosening. When the operator cleans the curtain wall main body 5, it is more convenient to clean the arc transition surface and it is not easy to cause interference.

[0033] Further, as Figure 4 and Figure 5As shown, the splicing block 402 includes a front part 4021 and a rear part 4022. The front part 4021 is spliced into the splicing groove 501. Both the front part 4021 and the rear part 4022 are right trapezoids. The splicing groove 501 includes a groove one 5011 and a groove two 5012. The groove one 5011 is trapezoidal and is used to clamp the front part 4021 of the splicing block 402. The groove two 5012 is rectangular. A trapezoidal clamping block 6 is slidably arranged in the groove two 5012. A spring plate 7 is arranged between the back surface of the trapezoidal clamping block 6 and the bottom surface of the groove two 5012. The trapezoidal clamping block 6 is pushed out by the spring plate 7 under normal conditions. When the splicing block 402 is spliced, the end pushes the trapezoidal clamping block 6 to slide into the interior of the groove two 5012. After the end of the splicing block 402 is clamped into the groove one 5011, the trapezoidal clamping block pops out of the groove two 5012 again.

[0034] As Figure 2 and Figure 3 shown, Figure 2 The state in [Figure] is the sliding process of the splicing block 402. Figure 3 The state in [Figure] is the state after the front part 4021 of the splicing block 402 is completely inserted into the groove one 5011. During the insertion process of the splicing block 402 and the splicing groove 501, the installer presses the middle part of the transition plate 401, making the transition plate 401 concave towards the corner 10. The splicing block 402 at the end of the transition plate 401 is aligned with the splicing groove 501. At this time, the pressing force is appropriately relaxed, so that the front part 4021 in the splicing block 402 slides towards the groove one 5011. During the sliding process, the trapezoidal inclined surface of the front part 4021 fits with the inclined surface of the trapezoidal clamping block 6, and pushes the trapezoidal clamping block 6 to slide into the interior of the groove two 5012, compressing the spring plate 7. After the front part 4021 completely enters the groove one 5011, the trapezoidal clamping block 6 loses the thrust and slides out of the groove two 5012 again under the push of the spring plate 7. At this time, the trapezoidal inclined surface of the rear part 4022 just coincides with the inclined surface of the slid-out trapezoidal clamping block 6, completing the installation of the entire transition plate 401. The arc transition surface that is concave towards the corner 10 formed after the installation of the transition plate 401 can reduce the probability of dust contamination, so that most of the dust in the air can be blown away by the air flow along the arc surface. At the same time, the corner 10 of the arc transition surface makes it more convenient for the operator to clean.

[0035] Further, the outer side between the front part 4021 and the rear part 4022 is stepped, and the step height is equal to the thickness of the outer wall surface of the splicing groove 501. As shown in state b of FIG. 4, when the front part 4021 of the splicing block 402 is completely inserted into the groove 5011, the thickness of the outer wall of the groove 5011 is exactly equal to the step height formed by the longer right-angled sides of the front part 4021 and the rear part 4022, so that after the splicing block 402 is inserted into the splicing groove 501, no large gap is generated, and a smooth transition can be achieved between the splicing block 402 and the curtain wall body, dust accumulation can be prevented, the resistance generated during air flow guiding can be reduced, and the dust can be smoothly carried away by the air flow from the entire decorative keel 3.

[0036] Further, the two side surfaces of the decorative keel 3 are inclined surfaces. Since the external air flow will continue to flow along the tangent direction of the arc transition surface after being guided by the arc transition surface, the impact force between the air flow after being guided and the decorative keel 3 is greatly reduced, and the wind resistance generated by the decorative keel 3 is further reduced.

[0037] As Figure 7 shown, a symmetrical connection structure 101 is provided on the surface of the keel body 1 that fits the curtain wall body 5. A connector 8 is slidably clamped in the middle of the connection structure 101, and the connector 8 is bolted to the pressing plate 2.

[0038] Specifically, the connection structure 101 includes a small arc segment 15, a large arc segment 16 connected to the small arc segment 15, and a right-angled segment 17 connected to the large arc segment 16. As Figure 6 shown, the entire connection structure 101 and the keel body 1 are integrally formed. A clamping cavity 18 for clamping the connector 8 is reserved in the middle of the connection structure 101, and the clamping cavity 18 communicates with the lower cavity of the keel body 1 through the gaps between the large arc segments 16 on the left and right sides.

[0039] Further, as Figure 8 shown, the connector 8 includes an M-shaped clamping plate 801 and a triangular fixing plate 803. A bolt hole 19 is provided in the triangular fixing plate 803. The M-shaped clamping plate 801 and the triangular fixing plate 803 are connected by an inserting plate 802 with a conical cross-section, and the entire connector 8 is an integrally formed structure.

[0040] The connecting member 8 is used to assist in the installation of the pressing plate 2. The insertion plate 802 on the connecting member 8 is clamped at the gap between the large arc segments 16. The M-shaped clamping plate 801 is located in the lower cavity of the keel main body 1, and the triangular fixing plate 803 is located in the clamping cavity 18. During the installation process, the bolt passes through the pressing plate 2 and the right-angle segment 17 and is then screwed into the bolt hole 19 on the triangular fixing plate 803. By continuously screwing the bolt, the entire connecting member 8 moves continuously towards the pressing plate 2 direction, so that the insertion plate 802 with a conical cross-section continuously presses the two-sided large arc segments 16. At the same time, the M-shaped clamping plate 801 moves downward to fit the outer surface of the small arc segment 15. As Figure 6 shown, a clamping groove is provided between the small arc segment 15 and the large arc segment 16 on one side. When the curtain wall main body 5 is installed, the extension plate extending outward from the inner plate 502 of the curtain wall main body 5 is snapped into the clamping groove. Therefore, due to the pressure generated when the connecting member 8 and the connecting structure 101 are inserted into each other, the clamping groove is continuously pressed, so that the extension plate inserted into the clamping groove can be fixed more stably.

[0041] As Figure 6 shown, splicing blocks 9 are symmetrically arranged at the end of the keel main body 1. A transverse keel 11 is inserted and fixed on the splicing block 9, and a load-bearing plate 14 is arranged on the transverse keel 11.

[0042] Specifically, the splicing block 9 is made by bending a splicing plate 90 degrees from the middle, and a strip-shaped long groove for the bolt to pass through is opened on the splicing block 9. After the bolt penetrates into the strip-shaped long groove, it is screwed and connected with the bolt hole 19 on the keel main body 1. The load-bearing plate 14 can provide a lifting force for the curtain wall main body 5 in the vertical direction, and cooperate with the longitudinal pressing of the pressing plate 2, so as to realize the rapid installation of the curtain wall main body 5. As Figure 10 shown, a straight groove 20 is opened on the load-bearing plate 14. By inserting the limiting cross beam 12 into the straight groove 20, the curtain wall main body 5 can be further fixedly installed, reducing the risk of loosening of the curtain wall main body 5.

[0043] As Figure 9 shown, the limiting cross beam 12 is in a stepped shape. A strip-shaped clamping plate 121 for mutually clamping with the straight groove 20 is arranged on the surface that fits the transverse keel 11. The curtain wall main body 5 includes an inner plate 502 and an outer plate 503, and there is a gap between the inner plate 502 and the outer plate 503. When the limiting cross beam 12 is installed, the upper end of the long side of the stepped shape is clamped into the gap between the inner plate 502 and the outer plate 503. No complex tools or additional fixing parts are required during installation. It is directly clamped into the gap between the inner plate 502 and the outer plate 503, simplifying the installation process and reducing the construction difficulty. When a single limiting cross beam 12 or a curtain wall board is damaged, it can be disassembled and replaced separately without large-area demolition, reducing the maintenance cost and time.

[0044] In this embodiment, as Figure 4 shown, a triangular clamping strip 403 is provided on the clamping surface between the sealing plate 4 and the decorative keel 3. During installation, the sealing plate 4 can be quickly clamped on both sides of the decorative keel 3 only by pressing.

[0045] In this embodiment, a buffer elastic pad 13 is provided between the curtain wall main body 5 and the pressing plate 2.

[0046] The buffer elastic pad 13 can effectively absorb and weaken the sound wave vibration, reduce the influence of external noises (such as traffic noises, wind and rain sounds) on the indoor environment, and improve the comfort of the building. It can avoid the frictional noise generated by the vibration between the curtain wall main body 5 and the pressing plate 2. Secondly, during the installation of the curtain wall main body 5, the elastic pad can make up for the installation error between the curtain wall main body 5 and the pressing plate 2 and improve the construction error tolerance rate.

[0047] Based on the above curtain wall node structure, the present application also relates to a construction method for the above curtain wall node structure, including the following construction steps: S1. Install the main keel 1 and fix the main keel 1 on the main wall of the building. S2. Install the curtain wall main body 5. Before installation, first lap the transverse keel 11 at the lower end of the main keel 1, and at the same time snap the limit cross beam 12 into the straight groove 20 on the transverse keel 11. At this time, after the gap between the inner plate 502 and the outer plate 503 in the curtain wall main body 5 is snapped with the stepped end of the limit cross beam 12, the preliminary fixation of the curtain wall main body 5 is realized, and the two curtain wall main bodies 5 are symmetrically arranged on the main keel 1. S3. Install the pressing plate 2. Connect the bolt through the through hole on the pressing plate 2 with the connecting piece 8 slidably clamped in the connecting structure 101, and make the pressing plate 2 fit with the curtain wall main body 5 by turning the bolt. During the process of turning the bolt, the connecting piece 8 continuously moves towards the pressing plate 2 side, and the tapered plug 802 continuously inserts into the inner cavity of the connecting structure 101, squeezing the connecting structure 101 to make the connecting structure 101 clamped with the M-shaped clamping plate 801. S4. Install the sealing plate 4. First, fix the decorative keel 3 on the pressing plate 2, and then clamp the sealing plate 4 on the decorative keel 3 through the triangular clamping block on the sealing plate 4. After the sealing plate 4 is clamped and fixed, press the transition plate 401 connected to the sealing plate 4 towards the corner 10, so that the end of the transition plate 401 bends towards the outside of the corner 10. At this time, snap the embedding block 402 at the end of the transition plate 401 into the embedding groove 501 to complete the installation of the sealing plate 4. At this time, the transition plate 401 forms an arc transition surface.

[0048] Working principle: The corner 10 between the curtain wall main body 5 and the pressing plate 2 is closed by the transition plate 401, and the transition plate 401 is bent into an arc transition surface recessed towards the corner 10, so that the curtain wall main body 5 and the decorative keel 3 are connected through a smooth arc surface, thus avoiding the small-angle corner 10 that is difficult to clean between the two, and facilitating the operators to quickly clean the splicing point of the curtain wall main body 5 and the decorative keel 3. At the same time, the formed arc transition surface can play a role in guiding the external air flow, which is beneficial to reducing the wind resistance generated by the decorative keel 3 and improving the stability of the decorative keel 3.

[0049] During the bending process of the transition plate 401, the operator aligns the front part 4021 of the engaging block 402 with the first groove 5011 in the engaging groove 501, applies a force on the engaging block 402 towards the curtain wall main body 5, so that the trapezoidal inclined surface of the front part 4021 coincides with the inclined surface of the trapezoidal clamping block 6. At this time, appropriately relax the pressing force on the transition plate 401. Due to the elastic force generated by the bending of the transition plate 401, it will push the engaging block 402 to slide towards the first groove 5011. During the sliding process, it will push the trapezoidal clamping block 6 to contract into the second groove 5012. After the front part 4021 completely enters the first groove 5011, a part of the trapezoidal clamping block 6 is pushed out of the second groove 5012 again by the spring plate 7, so that the inclined surface of the trapezoidal clamping block 6 coincides with the inclined surface of the rear part 4022, completing the clamping connection between the engaging block 402 and the engaging groove 501. After the engaging groove 501 and the engaging block 402 are clamped, since there is a stepped connection between the front part 4021 and the rear part 4022, the trapezoidal clamping block 6 can limit the front part 4021 engaged in the first groove 5011 to prevent the engaging block 402 from sliding out of the first groove 5011. At the same time, the spring plate 7 can push the trapezoidal clamping block 6 tightly, so that the trapezoidal clamping block 6 is closely attached to the rear part 4022, thus realizing the self-locking clamping connection between the engaging groove 501 and the engaging block 402.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present invention. The scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A curtain wall node structure convenient for cleaning, characterized in that, Including: A keel main body (1), fixed to the main wall of a building; A pressing plate (2), installed in parallel on the outer end face of the keel main body (1); A decorative keel (3), fixed to the pressing plate (2), with sealing plates (4) clamped on both sides; A curtain wall main body (5), installed between the keel main body (1) and the pressing plate (2), one side edge of the curtain wall main body (5) coincides with one side edge of the pressing plate (2) to form a corner (10), and an embedding groove (501) is opened on the curtain wall main body (5) near the corner (10); Wherein, a bendable transition plate (401) is connected to the sealing plate (4), and the other end of the transition plate (401) is connected to an embedding block (402). After the embedding block (402) is embedded in the embedding groove (501), the transition plate (401) bends outward towards the corner (10) to form an arc transition surface.

2. The curtain wall node structure convenient for cleaning according to claim 1, wherein: The embedding block (402) includes a front part (4021) and a rear part (4022). The front part (4021) is embedded in the embedding groove (501). Both the front part (4021) and the rear part (4022) are right trapezoids, and the outer side between the front part (4021) and the rear part (4022) is stepped, and the step height is equal to the thickness of the outer wall surface of the embedding groove (501).

3. The curtain wall node structure convenient for cleaning according to claim 2, wherein: The embedding groove (501) includes a groove one (5011) and a groove two (5012). The inner cavity size of the groove one (5011) is the same as the volume of the front part (4021) of the embedding block (402). The groove one (5011) is used for clamping the front part (4021) of the embedding block (402). The groove two (5012) is rectangular. A trapezoidal clamping block (6) is slidably arranged in the groove two (5012). A spring plate (7) is arranged between the back surface of the trapezoidal clamping block (6) and the bottom surface of the groove two (5012). The trapezoidal clamping block (6) is ejected by the spring plate (7) under normal conditions. When the embedding block (402) is clamped, the end part pushes the trapezoidal clamping block (6) to slide towards the inside of the groove two (5012). After the end part of the embedding block (402) is clamped into the groove one (5011), the trapezoidal clamping block (6) pops out of the groove two (5012) again.

4. A curtain wall node structure convenient for cleaning according to claim 1, characterized in that: On the surface of the keel main body (1) that fits with the curtain wall main body (5), a symmetric connection structure (101) is provided, and a connecting piece (8) is slidably clamped in the middle of the connection structure (101).

5. The curtain wall node structure convenient for cleaning according to claim 4, characterized in that: The connecting piece (8) includes an M-shaped clamping plate (801) and a triangular fixing plate (803). The M-shaped clamping plate (801) and the triangular fixing plate (803) are connected by an insertion plate (802) with a conical cross-section.

6. The curtain wall node structure convenient for cleaning according to claim 1, wherein: Splicing blocks (9) are symmetrically arranged at the end of the keel main body (1). A transverse keel (11) is inserted and fixed on the splicing blocks (9). A bearing plate (14) is arranged on the transverse keel (11). A straight slot (20) is opened on the bearing plate (14), and a limiting cross beam (12) is inserted in the straight slot (20).

7. The curtain wall node structure convenient for cleaning according to claim 6, characterized in that: The limiting cross beam (12) is stepped. A strip board (121) for engaging with the straight notch (20) is arranged on the surface of the limiting cross beam (12) that fits with the transverse keel (11). The curtain wall main body (5) includes an inner plate (502) and an outer plate (503), and there is a gap between the inner plate (502) and the outer plate (503). When the limiting cross beam (12) is installed, the long side end of the step is snapped into the gap between the inner plate (502) and the outer plate (503).

8. The curtain wall node structure convenient for cleaning according to claim 1, wherein: A triangular engaging strip (403) is arranged on the engaging surface between the sealing plate (4) and the decorative keel (3).

9. The curtain wall node structure convenient for cleaning according to claim 1, wherein: A buffer elastic pad (13) is arranged between the curtain wall main body (5) and the pressing plate (2).

10. A construction method of a curtain wall node structure convenient for cleaning, specifically applied to the curtain wall node structure described in any one of claims 1-9, characterized in that, It includes the following construction steps: S1. Install the main keel (1) and fix the main keel (1) on the main wall of the building. S2. Install the curtain wall main body (5). Before installation, first lap the transverse keel (11) at the lower end of the main keel (1), and at the same time snap the limiting cross beam (12) into the straight notch (20) on the transverse keel (11). At this time, after the gap between the inner plate (502) and the outer plate (503) in the curtain wall main body (5) is engaged with the stepped end of the limiting cross beam (12), the preliminary fixation of the curtain wall main body (5) is achieved, and the two curtain wall main bodies (5) are symmetrically arranged on the main keel (1). S3. Install the pressing plate (2). Connect the pressing plate (2) to the connector (8) that is slidably engaged in the connection structure (101) by inserting bolts into the through holes on the pressing plate (2). By turning the bolt, the pressing plate (2) is made to fit with the curtain wall main body (5). During the process of turning the bolt, the connector (8) continuously moves towards the pressing plate (2) side, and the conical plug (802) continuously inserts into the inner cavity of the connection structure (101), squeezing the connection structure (101) so that the connection structure (101) is engaged with the M-shaped clamping plate (801). S4. Install the sealing plate (4). First, fix the decorative keel (3) on the pressing plate (2), and then engage the sealing plate (4) on the decorative keel (3) through the triangular engaging block on the sealing plate (4). After the sealing plate (4) is fixedly engaged, by pressing the transition plate (401) connected to the sealing plate (4) towards the corner (10) direction, the end of the transition plate (401) is bent towards the outside of the corner (10). At this time, the engaging block (402) at the end of the transition plate (401) is snapped into the engaging groove (501) to complete the installation of the sealing plate (4).

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