A crack-resistant device for ALC lightweight partition boards

By introducing a combination of limit seats, connectors, and wooden wedges into the ALC lightweight partition board, the problem of expansion and contraction cracks caused by temperature and humidity changes is solved, achieving higher connection stability and crack resistance.

CN224281674UActive Publication Date: 2026-05-26JIANGXI HYDROPOWER ENG BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI HYDROPOWER ENG BUREAU
Filing Date
2025-07-09
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of partition wall panel technology, and more particularly to an ALC lightweight partition wall panel crack prevention device, comprising a wall panel, a limiting seat, and connectors. The limiting seats are respectively inserted into the side walls of the wall panel. A first groove is formed on the surface of the wall panel near the limiting seat, and a through groove is formed in the middle of the limiting seat. The connectors are all snapped into the middle of the first groove, and locking blocks are fixed at both ends of the connectors. A positioning groove is formed on the side walls of the wall panel. Compared with traditional partition wall panel crack prevention devices, this utility model improves the convenience of installation and positioning of the wall panel and limiting seat by cooperating with the wall panel, positioning groove, and rib. The first groove and connectors improve the convenience of hiding the connectors. By setting the limiting seat, through groove, connector, and locking blocks, the locking blocks are respectively inserted into the middle of the two through grooves to connect two adjacent wall panels, thereby reducing the expansion and contraction displacement of the wall panel connection and improving the crack prevention performance of the partition wall panel.
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Description

Technical Field

[0001] This utility model relates to the field of partition wall technology, and in particular to an ALC lightweight partition wall anti-crack device. Background Technology

[0002] ALC lightweight partition board, also known as autoclaved aerated concrete lightweight partition board, is a porous concrete board made primarily of silica sand, cement, and lime, reinforced with rust-proofed steel bars, and cured under high temperature and high pressure steam. ALC lightweight partition board has numerous uniform and fine pores inside, which endow it with many excellent properties. As a new type of building material, ALC lightweight partition board has been widely used in modern construction projects due to its advantages such as lightweight and high strength, thermal insulation, sound insulation and fire resistance, and convenient construction.

[0003] However, in actual use, ALC lightweight partition boards are prone to cracking, which not only affects the aesthetics of the building, but may also reduce the sound insulation and thermal insulation performance of the wall, and even pose a potential threat to the structural safety of the building.

[0004] Existing ALC lightweight partition walls are typically connected using mortar as a joint filler during installation. Frequent changes in temperature and humidity can cause varying degrees of thermal expansion and contraction between the ALC lightweight partition wall panels and the joint filler material, resulting in expansion and contraction cracks at the joints of the ALC lightweight partition walls. This affects the aesthetics and safety of the lightweight partition walls. Utility Model Content

[0005] To overcome the problem that existing ALC lightweight partition walls typically use mortar as a joint filler during installation, frequent changes in temperature and humidity cause varying degrees of thermal expansion and contraction between the ALC lightweight partition wall panels and the joint filler material, resulting in expansion and contraction cracks at the joints, thus affecting the aesthetics and safety of the lightweight partition walls.

[0006] The technical solution of this utility model is as follows: an ALC lightweight partition wall anti-crack device, comprising a wall panel, a limiting seat and connectors. The limiting seats are respectively inserted into the side wall of the wall panel. The surface of the wall panel near the limiting seat is provided with a first groove. The middle of the limiting seat is provided with a through groove. The connectors are all snapped into the middle of the first groove. Both ends of the connectors are fixed with locking blocks. The side wall of the wall panel is provided with a positioning groove. The side wall of the wall panel away from the positioning groove is fixed with a rib.

[0007] Furthermore, the connector and the locking block are fixedly connected to form an integrated structure, and the external dimensions of the locking block are adapted to the internal dimensions of the through slot, which improves the stability of the connector installation.

[0008] Furthermore, a limiting plate is fixedly installed in the middle of each limiting seat, and the limiting plate and the limiting seat are fixedly connected to form an integrated structure, which improves the stability of the connection between the limiting seat and the wall panel.

[0009] Furthermore, each of the first grooves is fitted with a wooden wedge, and each wedge has a protrusion fixed on its surface. The external dimensions of the wooden wedges are adapted to the internal dimensions of the first groove, which improves the safety of the casting of the limiting seat.

[0010] Furthermore, the wall panel and the joists are fixedly connected to form an integrated structure, and the external dimensions of the joists are adapted to the internal dimensions of the positioning grooves.

[0011] Furthermore, a base plate is fixed to the bottom of each wall panel, and the surface of the base plate is provided with holes and slots for bolt connection.

[0012] Furthermore, a second groove is provided at the bottom end of each wall panel near the rib, and the internal dimensions of the second groove are adapted to the external dimensions of the base plate.

[0013] Furthermore, filling grooves are provided on the side walls of the wall panel near the ribs, and the filling grooves are connected to the first groove and the second groove respectively for mortar filling.

[0014] The beneficial effects of this utility model are:

[0015] Compared to traditional partition wall crack prevention devices, this device improves the ease of installation and positioning of the wall panel and limiting seat by using a combination of wall panel, positioning groove, and rib. The first groove and connector improve the ease of concealing the connector. By setting up a limiting seat, through groove, connector, and locking block, the locking block is inserted into the middle of two through grooves to connect two adjacent wall panels, thereby reducing expansion and contraction displacement of the wall panel connection and improving the crack prevention performance of the partition wall. Secondly, by setting up a limiting plate and wooden wedge, the stability and safety of the limiting seat casting are improved. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the anti-crack device for partition walls according to this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the installation structure of the connector of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the limiting seat of this utility model;

[0019] Figure 4 The diagram shown is a schematic representation of the wall panel structure of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the rib structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Wall panel; 2. Limiting seat; 3. Positioning groove; 4. Through groove; 5. Connector; 6. Rib; 7. First groove; 8. Locking block; 9. Limiting plate; 10. Base plate; 11. Second groove; 12. Filling groove; 13. Hole groove; 14. Wooden wedge. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Among the currently discovered feasible technologies, the following are described:

[0024] In the context of the modern construction industry's continuous pursuit of efficiency, environmental protection, and energy conservation, the innovation of building materials is of paramount importance. ALC lightweight partition wall panels, with their unique performance advantages, have gradually become a favored wall material in building construction. They not only play a role in dividing space in building structures, but also meet the requirements of building energy conservation, environmental protection, and other aspects, thus contributing to the sustainable development of the construction industry.

[0025] ALC lightweight partition board, also known as autoclaved aerated concrete lightweight partition board, is a porous concrete panel made primarily from silica sand, cement, and lime, reinforced with rust-proofed steel bars, and cured under high-temperature and high-pressure steam. Its interior contains numerous uniform and fine pores, which endow ALC lightweight partition board with many excellent properties. Advanced processes and equipment are used in the production of the panels to ensure the stability and consistency of product quality, enabling them to reliably function in construction projects.

[0026] Before construction, the construction site needs to be cleaned to ensure that the ground is flat, clean, and free of debris and obstacles. At the same time, according to the design drawings and construction plan, accurate measurements and lines should be taken to determine the position and height of the wall, and the center line and edge line of the wall should be marked on the ground, wall surface and ceiling. In addition, materials and tools such as ALC lightweight partition boards, special mortar, connectors and fasteners required for construction should be prepared, and the materials should be inspected for quality to ensure that they meet the relevant standards and requirements.

[0027] Apply the special mortar evenly to the grooves and surface of the board, then position the board according to the marked lines. Use tools such as pry bars to adjust the verticality and horizontality of the board to ensure that the board is installed firmly and flat. The joints between adjacent boards should be tight, and the gap width should be controlled between 3-5mm. For door and window openings, special treatment is required according to the design requirements. Use boards of appropriate specifications for installation, and strengthen the fixing and connection of door and window openings to ensure the stability and safety of the wall.

[0028] After the panels are installed, the joints need to be treated. First, fill and compact the joints with polymer mortar. Then, apply alkali-resistant fiberglass mesh or non-woven fabric to the joints, and cover them with polymer mortar again, ensuring the joints are flat, smooth, and free of cracks. Sealing is also required at the junctions of walls and floors, walls, and ceilings to prevent cracks and leaks.

[0029] After the ALC lightweight partition wall panels are installed, they should be cured for at least 7 days. During the curing period, spray water on the wall surface daily to keep it moist, avoiding direct sunlight and strong winds to prevent excessive evaporation of moisture that could cause shrinkage cracks. Increase the frequency of water spraying during hot summer months; take measures such as covering with insulation materials during cold winter months to ensure the curing effect.

[0030] During use, changes in temperature and humidity can cause varying degrees of thermal expansion and contraction in ALC lightweight partition boards and joint fillers, potentially leading to expansion and contraction cracks at the joints of the ALC lightweight partitions. This can affect the aesthetics and safety of the lightweight partitions.

[0031] Please refer to Figures 1-5 A crack-resistant device for ALC lightweight partition wall panels includes a wall panel 1, a limiting seat 2, and connectors 5. The wall panel 1 is mainly made of raw materials such as cement, lime, and silica sand, and is formed through gasification, cutting, and autoclaving. The limiting seat 2 and connectors 5 are both made of cast iron. The limiting seat 2 is pre-embedded and inserted into the side wall of the wall panel 1. A first groove 7 is formed on the surface of the wall panel 1 near the limiting seat 2. A through groove 4 is formed in the middle of the limiting seat 2. The connectors 5 are snapped into the middle of the first groove 7. A locking block 8 is fixed at both ends of the connector 5. The connectors 5 and the locking blocks 8 are fixedly connected to form an integrated structure. The connector 5 and the locking block 8 are U-shaped. The external dimensions of the locking block 8 are adapted to the internal dimensions of the through groove 4, which improves the stability of the connector 5 installation. The side walls of the wall panel 1 are provided with positioning grooves 3. The side walls of the wall panel 1 away from the positioning grooves 3 are all fixed with ribs 6. The wall panel 1 and the ribs 6 are fixedly connected to form an integral structure. The external dimensions of the ribs 6 are adapted to the internal dimensions of the positioning grooves 3. The locking blocks 8 are inserted into the middle of the limiting seat 2 in sequence, which improves the stability of the connection between the two ends of the wall panel 1, thereby reducing expansion and contraction displacement, thereby reducing cracks at the connection between the two ends of the wall panel 1 and improving crack resistance.

[0032] Each limiting seat 2 has a limiting plate 9 fixedly installed in the middle. The limiting plate 9 and the limiting seat 2 are fixedly connected to form an integral structure to increase frictional resistance and improve the stability of the connection between the limiting seat 2 and the wall panel 1. Each first groove 7 has a wooden wedge 14 inserted in the middle. The surface of the wooden wedge 14 is fixed with a protrusion. The external dimensions of the wooden wedge 14 are adapted to the internal dimensions of the first groove 7. The first groove 7 is used to seal the first groove 7 and the through groove 4, which improves the safety of the limiting seat 2 during casting.

[0033] A base plate 10 is fixed to the bottom of each wall panel 1. The surface of the base plate 10 is provided with holes and grooves 13 for bolt connection. A second groove 11 is provided at the bottom of each wall panel 1 near the rib 6. The internal dimensions of the second groove 11 are adapted to the external dimensions of the base plate 10. A filling groove 12 is provided on the side wall of each wall panel 1 near the rib 6. The filling groove 12 is connected to the first groove 7 and the second groove 11 respectively for mortar filling, thereby sealing the connection of the wall panel 1.

[0034] When using this partition wall anti-crack device, the operator first moves the wall panel 1 to the designated position, applies mortar evenly to the bottom of the wall panel 1, supports the bottom of the wall panel 1 on the building foundation, and then threads the bolts into the slots 13 to achieve initial fixation of the wall panel 1. Then, the bottom of the other wall panel 1 is evenly applied with mortar and the operation is repeated to achieve continuous installation. The rib 6 is engaged in the middle of the positioning slot 3, which improves the convenience of horizontal positioning of the wall panel 1 and the limiting seat 2. Then, the connector 5 is engaged in the middle of the two first grooves 7, and the locking block 8 is inserted into the middle of the two through slots 4 to tie the two adjacent wall panels 1, thereby reducing the displacement at the joint of the wall panel 1. Then, the mortar-filled filling slot 12 is connected to the inside of the first groove 7 and the second groove 11 to seal the joint, improve the overall stability of the wall panel 1 connection, and improve the crack resistance of the wall panel 1.

[0035] Considering the potential for contamination at both ends of the limiting seat 2 during pouring, wooden wedges 14 are sequentially inserted into the middle of the first groove 7 to seal both ends of the limiting seat 2, thereby preventing blockage of the through groove 4 and improving the safety of the limiting seat 2 during pouring.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crack-resistant device for ALC lightweight partition wall panels, characterized in that, It includes a wall panel (1), a limiting seat (2) and a connector (5): the limiting seat (2) is inserted into the side wall of the wall panel (1), the surface of the wall panel (1) near the limiting seat (2) is provided with a first groove (7), the middle of the limiting seat (2) is provided with a through groove (4), the connector (5) is snapped into the middle of the first groove (7), the two ends of the connector (5) are fixed with a locking block (8), the side wall of the wall panel (1) is provided with a positioning groove (3), and the side wall of the wall panel (1) away from the positioning groove (3) is fixed with a rib (6).

2. The ALC lightweight partition wall anti-crack device according to claim 1, characterized in that: The connector (5) and the locking block (8) are fixedly connected to form an integral structure, and the external dimensions of the locking block (8) are adapted to the internal dimensions of the through slot (4).

3. The ALC lightweight partition wall anti-crack device according to claim 1, characterized in that: Each limiting seat (2) has a limiting plate (9) fixedly installed in the middle. The limiting plate (9) and the limiting seat (2) are fixedly connected to form an integral structure.

4. The ALC lightweight partition wall anti-crack device according to claim 1, characterized in that: Each of the first grooves (7) has a wooden wedge (14) inserted in the middle. The surface of each wooden wedge (14) is fixed with a protrusion. The external dimensions of each wooden wedge (14) are adapted to the internal dimensions of the first groove (7).

5. The ALC lightweight partition wall anti-crack device according to claim 1, characterized in that: The wall panel (1) and the joists (6) are fixedly connected to form an integrated structure, and the external dimensions of the joists (6) are compatible with the internal dimensions of the positioning groove (3).

6. The ALC lightweight partition wall anti-crack device according to claim 1, characterized in that: The bottom of each wall panel (1) is fixed with a base plate (10), and the surface of the base plate (10) is provided with holes and grooves (13) for bolt connection.

7. The ALC lightweight partition wall anti-crack device according to claim 6, characterized in that: The bottom end of the wall panel (1) near the rib (6) is provided with a second groove (11), and the internal dimensions of the second groove (11) are adapted to the external dimensions of the base plate (10).

8. The ALC lightweight partition wall anti-crack device according to claim 7, characterized in that: The wall panel (1) has a filling groove (12) on the side wall near the rib (6). The filling groove (12) is connected to the first groove (7) and the second groove (11) respectively for mortar filling.