PCTSP wallboard assembly type self-locking connection joint

Abstract

The utility model discloses a PCTSP wallboard assembly type self-locking connection node, and relates to the technical field of building industrialization, in particular to an assembly type self-locking connection node for a prefabricated concrete sandwich wallboard, which is technically characterized by comprising a first wallboard, a second wallboard and an I-shaped positioning piece, a first T-shaped groove is formed in one side of the first wall plate, a first locking groove is formed in the inner side wall of the first T-shaped groove, a second T-shaped groove is formed in one end of the second wall plate, a second locking groove is formed in the inner side wall of the second T-shaped groove, and two locking blocks are slidably mounted on each of the two sides of the I-shaped positioning part. By arranging the locking blocks, the first wall plate and the second wall plate can be positioned and self-locked, so that the connecting structure is suitable for rapid installation and structural connection between the wall plates in a modular building, three-dimensional stress self-locking and tool-free rapid installation are achieved, the connecting operation is convenient and fast, and the fabricated wall plates are accurate in construction positioning and good in anti-seismic property.

Description

Technical Field

[0001] This utility model relates to the field of building industrialization technology, specifically to a PCTSP wall panel prefabricated self-locking connection node. Background Technology

[0002] With the development of industrialized construction, precast concrete wall panels have been widely used due to their advantages such as high construction efficiency and controllable quality. However, traditional wall panel connections mostly use welding, bolting, or grouting, which have drawbacks such as high construction complexity, insufficient connection reliability, and increased material and time costs due to complex nodes. On-site wet work or mechanical fastening relies on the precision of manual operation, and seismic and shear resistance performance is greatly affected by the worker's skill. Among existing dry connection technologies, some self-locking connectors achieve dry connection through mortise and tenon structures or snap-fit ​​designs, but most are only suitable for unidirectional forces, are prone to failure under multidimensional loads, and lack anti-detachment mechanisms, making them prone to loosening under long-term use or seismic action.

[0003] Therefore, the present invention aims to provide a PCTSP wall panel assembly self-locking connection node. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing dry connection technologies, this invention provides a prefabricated self-locking connection node for PCTSP wall panels. Through structural innovation, it achieves three-dimensional self-locking under load, resisting shear, tension, compression, and torsional loads. It enables tool-free, rapid installation, with a single node installation time of ≤30 seconds, while simultaneously meeting seismic resistance, anti-loosening requirements, and compatibility design. This solves the problem of the lack of locking structures between prefabricated building wall panels, which makes connection operations difficult and precise positioning challenging, significantly improving assembly efficiency and making it suitable for industrialized building systems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PCTSP wall panel assembly self-locking connection node, including a first wall panel, a second wall panel, and an I-shaped positioning component. A first T-shaped groove adapted to the I-shaped positioning component is provided on one side of the first wall panel, and a first locking groove is provided on the inner side wall of the first T-shaped groove. A second T-shaped groove adapted to the I-shaped positioning component is provided at one end of the second wall panel, and a second locking groove is provided on the inner side wall of the second T-shaped groove.

[0008] Two locking blocks are slidably installed on both sides of the I-shaped positioning component. The interior of the I-shaped positioning component is hollow, and a movable column is slidably installed inside the I-shaped positioning component. Both ends of the movable column are provided with through grooves, and guide columns are fixedly connected to both sides of the through grooves. The locking blocks are provided with guide sliding holes, and the guide columns slide in the guide sliding holes. A spring is abutted at the upper end of the movable column. The surface of the I-shaped positioning component is plated with copper-based friction material, and graphene composite layers are embedded inside the first T-groove and the second T-groove.

[0009] Preferably, the lower end of the locking block is provided with a slope.

[0010] Preferably, a pull rod is fixedly connected to the upper end of the movable column, and a pull ring is fixedly connected to the upper end of the pull rod.

[0011] Preferably, the upper end of the I-shaped positioning member is provided with a groove, and the pull ring is located in the groove.

[0012] Preferably, the top of the I-shaped positioning member is hinged with a cover plate for covering the groove.

[0013] Preferably, the top of the cover plate has a pry opening.

[0014] Preferably, a limiting groove is formed on the inner side wall of the I-shaped positioning member, and a limiting block is provided on the outer wall of the movable column, with the limiting block sliding within the limiting groove.

[0015] Preferably, the surface of the I-shaped positioning component is provided with a copper-plated friction material layer, and the inner walls of the first T-groove and the second T-groove are provided with a graphene composite layer.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0018] 1. This utility model, by setting a locking block, when the I-shaped positioning component is inserted into the first T-slot and the second T-slot, the inclined surface of the locking block will be squeezed by the upper sidewalls of the first and second T-slots and retract into the I-shaped positioning component. At the same time, it will drive the movable column to slide upward and squeeze the spring. When the I-shaped positioning component is fully inserted into the first and second T-slots, since the locking blocks on both sides of the I-shaped positioning component are aligned with the first and second locking slots respectively, the spring will reset the movable column, causing the movable column to slide down. Under the cooperation of the guide column and the guide sliding hole, the movable column will drive the locking blocks on both sides of the I-shaped positioning component to insert into the corresponding first and second locking slots respectively, thus self-locking the first and second wall panels, realizing three-dimensional force self-locking, resisting shear, tension and torsional loads, enabling tool-free quick installation, with a single node installation time of ≤30 seconds, reducing the difficulty of connection operation and making positioning more accurate.

[0019] 2. By setting up a pull rod and a pull ring, when it is necessary to remove the first wall panel and the second wall panel, simply pull the pull ring so that the pull ring drives the movable column to slide upward through the pull rod. The locking blocks on both sides of the I-shaped positioning part will move out from the corresponding first locking groove and second locking groove. Continue to pull the pull ring to pull out the I-shaped positioning part, which facilitates the disassembly of the wall panel.

[0020] 3. This utility model can achieve zero-damage installation, avoiding structural damage caused by the need to groove the wall panel for traditional nodes.

[0021] 4. This utility model has a compatible design. It can be adapted to wall panels of 120-300mm without changing the main structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0024] Figure 3 This is a partial cross-sectional structural diagram of the first and second wall panels of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the I-shaped positioning component of this utility model.

[0026] In the picture:

[0027] 1. First wall panel; 11. First T-slot; 12. First locking slot; 13. Graphene composite layer;

[0028] 2. Second wall panel; 21. Second T-slot; 22. Second locking slot;

[0029] 3. I-shaped positioning component; 31. Locking block; 32. Movable column; 33. Through groove; 34. Guide column; 35. Guide sliding hole; 36. Spring; 37. Pull rod; 38. Pull ring; 39. Groove; 310. Cover plate; 311. Pry hole; 312. Limiting groove; 313. Limiting block; 314. Copper-plated friction material layer. Detailed Implementation

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Currently identified feasible technologies:

[0032] PCTSP (Precast Concrete Thermal-Soundproof Panel) wall panels are a new type of precast concrete composite wall panel that integrates thermal insulation, sound insulation, and load-bearing functions, and are widely used in prefabricated building systems. Its core advantages lie in improving construction efficiency through industrialized production, reducing on-site wet work, and meeting green building energy-saving requirements. Self-locking connection nodes are a key technology in PCTSP wall panel assembly, enabling rapid splicing between wall panels through mechanical interlocking or mortise and tenon structures, eliminating the need for additional welding or numerous bolts, significantly improving construction speed and structural integrity.

[0033] Self-locking mechanism: The tenon (male head) and groove (female head) on the edge of the wall panel cooperate to achieve automatic engagement by vertical pressing or horizontal pushing. Some nodes are combined with spring locks or rubber sealing strips to enhance stability.

[0034] Mechanical transmission path: The nodes bear vertical loads and horizontal seismic forces through the friction, shear force and preload of the tenon and groove. Some designs introduce pre-embedded steel plates or high-strength bolts as auxiliary connections.

[0035] Waterproofing and moisture-proofing treatment: Fill the joints with polyurethane sealant or install water drainage channels to prevent rainwater penetration.

[0036] High construction efficiency: The installation time for a single wall panel is reduced by more than 50% compared to traditional wet construction, thus reducing labor costs.

[0037] Good structural integrity: self-locking nodes transfer loads through mechanical interlocking, avoiding safety hazards caused by welding defects or loose bolts.

[0038] Energy-saving and environmentally friendly: Factory prefabrication reduces on-site dust and construction waste, and the composite insulation layer of the wall panels reduces building energy consumption.

[0039] Highly adaptable: It can be applied to frame structures, shear wall structures and low-rise prefabricated buildings to meet different seismic fortification requirements.

[0040] This utility model provides a technical solution:

[0041] Please see Figures 1-4A PCTSP wall panel assembly self-locking connection node includes a first wall panel 1, a second wall panel 2, and an I-shaped positioning component 3. The first wall panel 1 has a first T-slot 11 on one side that matches the I-shaped positioning component 3, and the second wall panel 2 has a second T-slot 21 on one end that matches the I-shaped positioning component 3. The inner walls of the first T-slot 11 and the second T-slot 21 are provided with spiral guide grooves and anti-loosening toothed rings. By using the I-shaped positioning component 3, when assembling corner wall panels, simply align the first T-slot 11 of the first wall panel 1 with the second T-slot 21 of the second wall panel 2, and then insert the I-shaped positioning component 3 along the first T-slot 11 and the second T-slot 21 to position the first wall panel 1 and the second wall panel 2. The anti-loosening toothed ring increases the friction between the I-shaped positioning component 3 and the first T-slot 11 and the second T-slot 21, preventing the I-shaped positioning component 3 from loosening after installation.

[0042] Specifically, a first locking groove 12 is provided on the inner wall of the first T-slot 11, and a second locking groove 22 is provided on the inner wall of the second T-slot 21. Two locking blocks 31 are slidably installed on both sides of the I-shaped positioning member 3. The lower end of the locking block 31 is provided with an inclined surface. The interior of the I-shaped positioning member 3 is a hollow structure. A movable column 32 is slidably installed inside the I-shaped positioning member 3. Both ends of the movable column 32 are provided with through grooves 33. Guide columns 34 are fixedly connected to both sides of the through grooves 33. A guide sliding hole 35 is provided inside the locking block 31. The guide column 34 slides in the guide sliding hole 35. The upper end of the movable column 32 abuts against a spring 36. By setting the locking block 31, when the I-shaped positioning member 3 is inserted into the first T-slot 11 and the second T-slot 21, the inclined surface of the locking block 31 is locked. The surface will be squeezed by the upper sidewalls of the first T-slot 11 and the second T-slot 21 and shrink into the I-shaped positioning member 3. At the same time, it will drive the movable column 32 to slide upward and squeeze the spring 36. When the I-shaped positioning member 3 is fully inserted into the first T-slot 11 and the second T-slot 21, the locking blocks 31 on both sides of the I-shaped positioning member 3 are aligned with the first locking groove 12 and the second locking groove 22 respectively. At this time, the spring 36 will reset the movable column 32, causing the movable column 32 to slide down. With the cooperation of the guide column 34 and the guide sliding hole 35, the movable column 32 will drive the locking blocks 31 on both sides of the I-shaped positioning member 3 to insert into the corresponding first locking groove 12 and second locking groove 22 respectively, so as to self-lock the first wall panel 1 and the second wall panel 2, reduce the difficulty of the connection operation, and make the positioning more accurate.

[0043] The surface of the I-shaped positioning component 3 is plated with a copper-based friction material. At the same time, the first T-groove 11 and the second T-groove 21 are both embedded with graphene composite layers. Graphene has extremely high thermal conductivity. Introducing it into the composite layer can effectively improve the thermal conductivity of the material, reduce the thermal stress caused by thermal expansion mismatch, and improve the thermal stability of the material. Meanwhile, copper has excellent thermal conductivity. As a matrix, the copper-based friction material can quickly conduct away the heat generated by friction, avoiding local overheating of the material.

[0044] Furthermore, a pull rod 37 is fixedly connected to the upper end of the movable column 32, and a pull ring 38 is fixedly connected to the upper end of the pull rod 37. By setting the pull rod 37 and the pull ring 38, when it is necessary to remove the first wall panel 1 and the second wall panel 2, simply pull the pull ring 38 so that the pull ring 38 drives the movable column 32 to slide upward through the pull rod 37. The locking blocks 31 on both sides of the I-shaped positioning piece 3 will move out from the corresponding first locking groove 12 and second locking groove 22. Continue to pull the pull ring 38 to pull out the I-shaped positioning piece 3, which facilitates the disassembly of the wall panel.

[0045] Furthermore, the upper end of the I-shaped positioning component 3 is provided with a groove 39, and the pull ring 38 is located in the groove 39. The top of the I-shaped positioning component 3 is hinged with a cover plate 310 for covering the groove 39. The top of the cover plate 310 is provided with a pry opening 311. By setting the cover plate 310, the pull ring 38 can be covered and protected.

[0046] Furthermore, a limiting groove 312 is provided on the inner side wall of the I-shaped positioning component 3, and a limiting block 313 is provided on the outer wall of the movable column 32. The limiting block 313 slides in the limiting groove 312. By setting the limiting groove 312 and the limiting block 313, the movable column 32 can be limited. When the pull ring 38 is pulled, the movable column 32 will drive the limiting block 313 to slide up along the limiting groove 312. When the limiting block 313 abuts against the inner top wall of the limiting groove 312, the limiting block 313 will drive the I-shaped positioning component 3 to continue to slide up.

[0047] Furthermore, the surface of the I-shaped positioning component 3 is provided with a copper-plated friction material layer 314, and the inner walls of the first T-groove 11 and the second T-groove 21 are provided with a graphene composite layer 13. Through the cooperation of the copper-plated friction material layer 314 and the graphene composite layer 13, a friction damping system is formed, so that when the wall is subjected to load and vibrates, the copper-plated friction material layer 314 and the graphene composite layer 13 can dissipate the energy of the vibration through friction, thereby reducing the vibration impact between the walls.

[0048] In practical use, the working principle of this utility model is as follows:

[0049] First, when assembling the corner wall panels, simply align the first T-slot 11 of the first wall panel 1 with the second T-slot 21 of the second wall panel 2, and then insert the I-shaped positioning piece 3 along the first T-slot 11 and the second T-slot 21 to position the first wall panel 1 and the second wall panel 2.

[0050] When the I-shaped positioning component 3 is inserted into the first T-slot 11 and the second T-slot 21, the inclined surface of the locking block 31 will be squeezed by the upper sidewalls of the first T-slot 11 and the second T-slot 21 and will retract into the I-shaped positioning component 3. At the same time, it will drive the movable column 32 to slide upward and squeeze the spring 36. When the I-shaped positioning component 3 is fully inserted into the first T-slot 11 and the second T-slot 21, since the locking blocks 31 on both sides of the I-shaped positioning component 3 are aligned with the first locking groove 12 and the second locking groove 22 respectively, the spring 36 will reset the movable column 32, causing the movable column 32 to slide down. With the cooperation of the guide column 34 and the guide sliding hole 35, the movable column 32 will drive the locking blocks 31 on both sides of the I-shaped positioning component 3 to insert into the corresponding first locking groove 12 and the second locking groove 22 respectively, thus self-locking the first wall panel 1 and the second wall panel 2, reducing the difficulty of the connection operation and making the positioning more accurate.

[0051] When it is necessary to remove the first wall panel 1 and the second wall panel 2, a tool can be inserted into the pry hole 311 to pry open the cover plate 310. Then, simply pull the pull ring 38 so that the pull ring 38 drives the movable column 32 to slide upward through the pull rod 37. The locking blocks 31 on both sides of the I-shaped positioning piece 3 will move out from the corresponding first locking groove 12 and second locking groove 22. Continue to pull the pull ring 38 to pull out the I-shaped positioning piece 3 and separate the wall panel.

[0052] In summary, the PCTSP wall panel assembly self-locking connection node, by setting the locking block 31, can position and lock the first wall panel 1 and the second wall panel 2, reducing the difficulty of the connection operation and making the positioning more accurate.

[0053] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A PCTSP wallboard assembled self-locking connecting node, comprising a first wallboard (1), a second wallboard (2) and an I-shaped positioning member (3), characterized in that: The first wall panel (1) has a first T-shaped groove (11) adapted to the I-shaped positioning component (3) on one side, and a first locking groove (12) is provided on the inner side wall of the first T-shaped groove (11). The second wall panel (2) has a second T-shaped groove (21) adapted to the I-shaped positioning component (3) at one end, and a second locking groove (22) is provided on the inner side wall of the second T-shaped groove (21). Two locking blocks (31) are slidably installed on both sides of the I-shaped positioning component (3). The interior of the I-shaped positioning component (3) is a hollow structure. A movable column (32) is slidably installed inside the I-shaped positioning component (3). Both ends of the movable column (32) are provided with through grooves (33). Guide columns (34) are fixedly connected to both sides of the through grooves (33). A guide sliding hole (35) is provided inside the locking block (31). The guide column (34) slides in the guide sliding hole (35). A spring (36) abuts against the upper end of the movable column (32). The surface of the I-shaped positioning component (3) is plated with copper-based friction material. At the same time, graphene composite layers are embedded inside the first T-groove (11) and the second T-groove (21).

2. The PCTSP wall panel prefabricated self-locking connection node according to claim 1, characterized in that: The lower end of the locking block (31) is provided with an inclined surface.

3. The PCTSP wall panel prefabricated self-locking connection node according to claim 1, characterized in that: A pull rod (37) is fixedly connected to the upper end of the movable column (32), and a pull ring (38) is fixedly connected to the upper end of the pull rod (37).

4. The PCTSP wall panel prefabricated self-locking connection node according to claim 3, characterized in that: The upper end of the I-shaped positioning component (3) is provided with a groove (39), and the pull ring (38) is located in the groove (39).

5. A PCTSP wall panel prefabricated self-locking connection node according to claim 4, characterized in that: The top of the I-shaped positioning member (3) is hinged with a cover plate (310) for covering the groove (39).

6. A PCTSP wall panel prefabricated self-locking connection node according to claim 5, characterized in that: The top of the cover plate (310) is provided with a pry opening (311).

7. A PCTSP wall panel prefabricated self-locking connection node according to claim 1, characterized in that: The inner sidewall of the I-shaped positioning component (3) is provided with a limiting groove (312), and the outer sidewall of the movable column (32) is provided with a limiting block (313), which slides in the limiting groove (312).

8. A PCTSP wall panel prefabricated self-locking connection node according to claim 1, characterized in that: The surface of the I-shaped positioning component (3) is provided with a copper-plated friction material layer (314), and the inner walls of the first T-groove (11) and the second T-groove (21) are provided with a graphene composite layer (13).

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