Fabricated building prefabricated external wall panel and waterproof connection node structure thereof

Abstract

The utility model discloses an assembly type building prefabricated external wall panel and a waterproof connection node structure thereof, and relates to the technical field of wall panel connection, the waterproof connection node structure specifically comprises a horizontal sealing structure and a vertical sealing structure, the horizontal sealing structure comprises an upper sealing plate matched with the top of the assembly type building prefabricated external wall panel and a lower sealing plate matched with the upper sealing plate; a first drainage groove is formed in the bottom end of the upper sealing plate, the upper sealing plate is of a hollow structure, the middle of an inner cavity of the upper sealing plate is filled with waterproof glue, and drainage holes are evenly formed in the top of the inner cavity of the upper sealing plate. The horizontal sealing structures and the vertical sealing structures are used for sealing the splicing seam between every two adjacent fabricated building prefabricated external wall panels, and when the fabricated building prefabricated external wall panels are spliced, waterproof glue can be evenly filled between the horizontal sealing structures and between the vertical sealing structures; and the waterproof performance of the waterproof connection node structure is further improved.

Description

Technical Field

[0001] This utility model relates to the field of wall panel connection technology, specifically to the structure of prefabricated exterior wall panels for prefabricated buildings and their waterproof connection nodes. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories are prefabricated in the engineering process, transported to the construction site, and assembled on-site using reliable connection methods. When connecting prefabricated exterior wall panels, waterproof treatment must be applied to the joints to prevent rainwater from seeping into the interior along the joints of the exterior wall panels.

[0003] In related technologies, prefabricated exterior wall panels for prefabricated buildings typically employ waterproofing methods such as installing expansion seals within the wall panel cavities, external drainage holes, and applying sealant. However, after repeated expansion, the expansion effect of the expansion seals gradually deteriorates, affecting their waterproofing performance. While the external drainage holes and sealant methods are simple and quick to construct, the waterproofing quality is difficult to control, and cavity blockage frequently occurs. Once the inner concrete cracks, it directly leads to waterproofing failure of the wall panel, and rainwater entering the joint cannot be drained. Based on this, this application proposes a prefabricated exterior wall panel for prefabricated buildings and its waterproof connection node structure. Utility Model Content

[0004] This utility model provides prefabricated exterior wall panels for prefabricated buildings and their waterproof connection node structure, which solves the problem mentioned in the background art that the waterproof quality is difficult to control and that rainwater cannot be drained after the waterproof fails.

[0005] The first aspect of this utility model provides the following technical solution: a waterproof connection node structure for wall panels, including a horizontal sealing structure and a vertical sealing structure. The horizontal sealing structure includes an upper sealing plate adapted to the top of the prefabricated exterior wall panel of the prefabricated building and a lower sealing plate adapted to the upper sealing plate. The bottom end of the upper sealing plate is provided with a drainage groove. The upper sealing plate is a hollow structure. The middle of the inner cavity of the upper sealing plate is filled with waterproof adhesive. The top of the inner cavity of the upper sealing plate is uniformly provided with drainage holes, which are sealed by a sealing membrane. The lower sealing plate is adapted to the bottom of the prefabricated exterior wall panel of the prefabricated building, and the bottom of the lower sealing plate is provided with a piercing rod adapted to the sealing membrane.

[0006] Preferably, the horizontal sealing structure and the vertical sealing structure are interlocked. The vertical sealing structure includes a waterstop strip, a side sealing plate one, and a side sealing plate two that are interlocked with the prefabricated exterior wall panel of the prefabricated building. Drainage groove two is provided on both sides of the vertical end of the waterstop strip and on the side of its horizontal end near the vertical end. The drainage groove one and the drainage groove two provided at the vertical end of the waterstop strip are in a connected state.

[0007] Furthermore, the first side sealing plate is connected to a vertical side of the prefabricated exterior wall panel of the prefabricated building. The first side sealing plate has a hollow structure, and the inner cavity of the first side sealing plate is filled with waterproof adhesive. Liquid outlet holes are uniformly provided on the outer side of the inner cavity of the first side sealing plate. The liquid outlet holes are sealed by a second sealing membrane. Puncture rods adapted to the liquid outlet holes are uniformly provided on the outer side of the second side sealing plate.

[0008] Preferably, the upper sealing plate is an upwardly convex arc-shaped structure, and both sides of the upper sealing plate are provided with a drainage groove.

[0009] Preferably, the bottom of the inner cavity of the drainage channel is an upwardly convex arc shape, and the drainage channel is in a horizontal state.

[0010] Preferably, there are two waterstops located between two adjacent prefabricated exterior wall panels of the prefabricated building. The waterstops are T-shaped structures, with the vertical ends of the waterstops located between the two adjacent prefabricated exterior wall panels and the horizontal ends of the waterstops engaging with the prefabricated exterior wall panels of the prefabricated building.

[0011] Preferably, the end of the horizontal sealing structure is provided with a groove that is compatible with the waterstop.

[0012] Preferably, the second drainage trough is in a vertical position.

[0013] The second aspect of this utility model provides the following technical solution: a prefabricated exterior wall panel for prefabricated buildings, including an exterior wall panel body and the aforementioned waterproof connection node structure of the wall panel, wherein an upper sealing plate is provided on the top of the exterior wall panel body, a lower sealing plate is provided at the bottom of the exterior wall panel body, and fixing grooves are provided at both ends of both sides of the exterior wall panel body, wherein the horizontal end of the waterstop is adapted to the fixing groove, and embedded parts are provided on the back of the exterior wall panel body.

[0014] Preferably, the top of the exterior wall panel body is an outwardly protruding arc-shaped structure, and the bottom of the exterior wall panel body is an inwardly recessed groove.

[0015] Compared with the prior art, this disclosure has the following beneficial effects:

[0016] 1. The prefabricated exterior wall panel and its waterproof connection node structure of the prefabricated building utilize horizontal and vertical sealing structures to seal the splice joint between two adjacent prefabricated exterior wall panels. Furthermore, during the splicing of the prefabricated exterior wall panels, the waterproof adhesive can be evenly filled between the horizontal and vertical sealing structures, further improving the waterproof performance of the waterproof connection node structure.

[0017] 2. The prefabricated exterior wall panels and their waterproof connection nodes of this prefabricated building, through the setting of drainage channel one and discharge channel two, can drain away the water that seeps into the splice joints of the exterior wall panels, prevent further water seepage, ensure the waterproof performance of the waterproof connection node structure, and the setting of the horizontal sealing structure shape increases the difficulty of water seepage, further improving the waterproof performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the waterproof connection node structure of the wall panel proposed in this utility model;

[0019] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0020] Figure 3 for Figure 1 A schematic diagram of the mid-structure viewed from below;

[0021] Figure 4 for Figure 1 Top view of the mid-structure;

[0022] Figure 5 This is a schematic diagram of the prefabricated exterior wall panel for assembled buildings proposed in this utility model;

[0023] Figure 6 This utility model Figure 5 A schematic diagram of the back side of the structure shown.

[0024] In the picture:

[0025] 1. Upper sealing plate; 2. Side sealing plate one; 3. Waterstop strip; 4. Exterior wall panel body; 5. Drainage channel two; 6. Drainage channel one; 7. Piercing rod one; 8. Side sealing plate two; 9. Sealing membrane two; 10. Lower sealing plate; 11. Sealing membrane one; 12. Embedded parts; 13. Fixing groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. The upward and downward views mentioned in the text are not orthographic projections, but only indicate the observation position; the specific details are subject to the information shown in the figures.

[0027] like Figures 1-4As shown, this utility model proposes a waterproof connection node structure for wall panels, including a horizontal sealing structure and a vertical sealing structure. The horizontal sealing structure includes an upper sealing plate 1 and a lower sealing plate 10 adapted to the upper sealing plate 1. Both the upper sealing plate 1 and the lower sealing plate 10 are upwardly convex arc-shaped structures, and the upper sealing plate 1 is a hollow structure with waterproof adhesive filling the middle of its inner cavity. Drainage holes are evenly provided at the top of the inner cavity of the upper sealing plate 1, and the drainage holes are sealed by a sealing membrane 11. The bottom of the lower sealing plate 10 is provided with a piercing rod 7 adapted to the sealing membrane 11. When the lower sealing plate 10 drives the piercing rod 7 to pierce the sealing membrane 11, the waterproof adhesive in the upper sealing plate 1 can flow out, and the outflowing waterproof adhesive fills the space between the upper sealing plate 1 and the lower sealing plate 10, thereby achieving a seal between the upper sealing plate 1 and the lower sealing plate 10.

[0028] Each of the following technical features may be selected independently, provided that it can solve the corresponding technical problem, and they are not necessarily required to be used in combination.

[0029] The upper sealing plate 1 has drainage grooves 6 on both sides along its length. The drainage grooves 6 are horizontal and there are at least two drainage grooves 6. The bottom of the inner cavity of the drainage groove 6 is an upward convex arc shape. With the setting of the drainage grooves 6, when the waterproof seal between the upper sealing plate 1 and the lower sealing plate 10 fails and water enters between the upper sealing plate 1 and the lower sealing plate 10, the drainage grooves 6 can play the function of draining water, diverting water away and preventing water from seeping in.

[0030] Both the upper sealing plate 1 and the lower sealing plate 10 mentioned above are made of flexible materials, such as rubber.

[0031] When the horizontal sealing structure is used, it seals the horizontal splice between two vertically stacked prefabricated exterior walls of the prefabricated building. The upper sealing plate 1 is connected to the top of the prefabricated exterior wall panel, and the lower sealing plate 10 is connected to the bottom of the prefabricated exterior wall panel.

[0032] The horizontal and vertical sealing structures are interlocked. The vertical sealing structure includes two waterstops 3, a first side sealing plate 2, and a second side sealing plate 8. The vertical sealing structure is used to seal the vertical joint of two adjacent prefabricated exterior wall panels stacked horizontally. The waterstops 3 are interlocked with the prefabricated exterior wall panels. Waterstops 3 are provided on both sides of the vertical joint. The end of the horizontal sealing structure is provided with a groove that matches the waterstops 3. The waterstops 3 are T-shaped structures. The vertical end of the waterstops 3... Located between two adjacent prefabricated exterior wall panels of prefabricated buildings, the horizontal end of the waterstop 3 is engaged with the prefabricated exterior wall panel of the prefabricated building. Drainage groove 2 5 is provided on both sides of the vertical end of the waterstop 3 and on the side of its horizontal end near the vertical end. Drainage groove 2 5 is in a vertical state. Drainage groove 1 6 is in a connected state with drainage groove 2 5 provided on the vertical end of the waterstop 3. Through the setting of drainage groove 2 5, water that has seeped into the horizontal splice and vertical splice can be drained away, preventing water from continuing to seep in.

[0033] Side sealing plate 1 2 and side sealing plate 2 8 are located between two waterstops 3. Side sealing plate 1 2 is a hollow structure. The inner cavity of side sealing plate 1 2 is filled with waterproof adhesive. Liquid outlet holes are uniformly provided on the outer side of the inner cavity of side sealing plate 1 2. The liquid outlet holes are sealed by sealing membrane 2 9. Puncture rods 2 that are adapted to the liquid outlet holes are uniformly provided on the outer side of side sealing plate 2 8. When puncture rod 2 punctures sealing membrane 2 9, the waterproof adhesive in side sealing plate 1 2 flows out. The outflowing water-blocking adhesive can be uniformly filled between side sealing plate 1 2 and side sealing plate 2 8, improving the waterproof performance between side sealing plate 1 2 and side sealing plate 2 8.

[0034] Waterstop 3, side sealing plate 1, and side sealing plate 2 are all made of flexible material, which can be rubber. Sealing membrane 11 and sealing membrane 29 can both be made of polyethylene.

[0035] As described above, the waterproof connection joint structure of the wall panels achieves sealing of the joint between two adjacent prefabricated exterior wall panels through horizontal and vertical sealing structures, improving the waterproof performance of the joint. Furthermore, drainage channels 6 and 5 effectively drain infiltrated water, preventing further seepage. The shape of the horizontal sealing structure increases the difficulty of water infiltration, further enhancing waterproof performance. The waterproof connection joint structure also provides a certain amount of allowance for thermal expansion and contraction of the exterior wall panels, reducing the probability of cracking due to compression.

[0036] like Figures 5-6As shown, this utility model also proposes a prefabricated exterior wall panel for prefabricated buildings, including an exterior wall panel body 4 and the aforementioned waterproof connection node structure. The top of the exterior wall panel body 4 is an outwardly protruding arc structure, and the bottom of the exterior wall panel body 4 is an inwardly recessed groove. An upper sealing plate 1 is provided on the top of the exterior wall panel body 4, and a lower sealing plate 10 is provided on the bottom of the exterior wall panel body 4. Fixing grooves 13 are provided at both ends of both sides of the exterior wall panel body 4. The horizontal end of the waterstop 3 is adapted to the fixing groove 13. The waterstop 3 is snapped into place on both sides of one side of the exterior wall panel body 4 through the fixing groove 13. An embedded part 12 is provided on the back of the exterior wall panel body 4, which facilitates the fixing of the exterior wall panel body 4.

[0037] In summary: When using the prefabricated exterior wall panel and its waterproof connection node structure, the two vertically stacked prefabricated exterior wall panels are sealed by a horizontal sealing structure. The top of the upper sealing plate 1 and the bottom of the lower sealing plate 10 are tightly fitted. The piercing rod 7 punctures the sealing membrane 11, and the waterproof adhesive filled in the upper sealing plate 1 flows out. The waterproof adhesive is evenly filled between the upper sealing plate 1 and the lower sealing plate 10, further improving the seal between the upper sealing plate 1 and the lower sealing plate 10. Two horizontally stacked prefabricated exterior wall panels are sealed by a vertical sealing structure. Adjacent prefabricated exterior wall panels are interlocked by a waterstop 3. The piercing rod 2 in the vertical sealing structure punctures the sealing membrane 2 9, allowing the waterproof adhesive in the side sealing plate 1 2 to flow out and fill the space between the side sealing plate 1 2 and the side sealing plate 2 8, thus improving the waterproof performance of the vertical sealing structure. Water that seeps into the joint of the prefabricated exterior wall panels can be discharged through the drainage channel 1 6 and the drainage channel 2 5, preventing further water seepage and ensuring the waterproof performance of the prefabricated exterior wall panels.

[0038] All standard parts used in this utility model can be made using existing technology. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional means such as bolts that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wall panel waterproof connection node construction comprising a horizontal sealing structure and a vertical sealing structure, characterized in that: The horizontal sealing structure comprises an upper sealing plate (1) matched with the top of the prefabricated outer wall plate of the assembled building and a lower sealing plate (10) matched with the upper sealing plate (1). The bottom end of the upper sealing plate (1) is provided with a drainage groove (6), the upper sealing plate (1) is a hollow structure, the middle part of the inner cavity of the upper sealing plate (1) is filled with waterproof glue, the top of the inner cavity of the upper sealing plate (1) is uniformly provided with a liquid drainage hole, and the liquid drainage hole is sealed by a sealing film (11). The lower sealing plate (10) is matched with the bottom of the prefabricated outer wall plate of the assembled building, and the bottom of the lower sealing plate (10) is provided with a puncture rod (7) matched with the sealing film (11).

2. The wallboard waterproof connection node construction of claim 1, wherein: The horizontal sealing structure and the vertical sealing structure are clamped, the vertical sealing structure comprises a water stop belt (3) clamped with the prefabricated outer wall plate of the assembled building, a side sealing plate (2) and a side sealing plate (8). The two sides of the vertical end of the water stop belt (3) and the side close to the vertical end of the horizontal end are provided with drainage grooves (5), and the drainage groove (6) and the drainage groove (5) provided on the vertical end of the water stop belt (3) are in communication.

3. The wallboard waterproof connection node construction of claim 2, wherein: The side sealing plate (2) is connected with a vertical side of the prefabricated outer wall plate of the assembled building, the side sealing plate (2) is a hollow structure, the inner cavity of the side sealing plate (2) is filled with waterproof glue, the outer side of the inner cavity of the side sealing plate (2) is uniformly provided with a liquid outlet hole, the liquid outlet hole is sealed by a sealing film (9), and the outer side of the side sealing plate (8) is uniformly provided with a puncture rod (2) matched with the liquid outlet hole.

4. The wallboard waterproof connection node construction of claim 3, wherein: The upper sealing plate (1) is an arc structure protruding upward, and the two sides of the upper sealing plate (1) are provided with drainage grooves (6).

5. The wallboard waterproof connection node construction of claim 4, wherein: The bottom of the inner cavity of the drainage groove (6) is an arc protruding upward, and the drainage groove (6) is in a horizontal state.

6. The wallboard waterproof connection node construction of claim 3, wherein: The water stop belt (3) has two, and the two water stop belts (3) are located between two adjacent prefabricated outer wall plates of the assembled building, the water stop belt (3) is a T-shaped structure, the vertical end of the water stop belt (3) is located between two adjacent prefabricated outer wall plates of the assembled building, and the horizontal end of the water stop belt (3) is clamped with the prefabricated outer wall plate of the assembled building.

7. The wallboard waterproof connection node construction of claim 3, wherein: The end of the horizontal sealing structure is provided with a clamping groove matched with the water stop belt (3).

8. The wallboard waterproof connection node construction of claim 3, wherein: The drainage groove (5) is in a vertical state.

9. Prefabricated external wall panel for modular construction, comprising an external wall panel body (4), characterized in that: Further comprising the wall plate waterproof connection node structure of any one of claims 1-8, the top of the outer wall plate body (4) is provided with an upper sealing plate (1), the bottom of the outer wall plate body (4) is provided with a lower sealing plate (10), the two ends of the outer wall plate body (4) on the two sides are provided with fixing grooves (13), the horizontal end of the water stop belt (3) is matched with the fixing grooves (13), and the back of the outer wall plate body (4) is provided with embedded parts (12).

10. The prefabricated exterior wall panel of the fabricated building according to claim 9, characterized in that: The top of the outer wall plate body (4) is an arc structure protruding outward, and the bottom of the outer wall plate body (4) is a groove recessed inward.

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