Fabricated building wall

Abstract

The utility model provides an assembly type building wall which comprises a frame keel, a noise reduction keel, a wall core material and an external wall panel, an annular cavity with openings in the two sides is formed in the frame keel, the noise reduction keel and the wall core material are located in the annular cavity, and the openings in the two sides of the annular cavity are blocked by the external wall panel; the cross section of the noise reduction keel comprises at least two Z-shaped structures connected end to end, and the Z-shaped structures are used for dividing the annular cavity into a plurality of noise reduction reflection cavities. The noise reduction keel is optimally designed, and the wall body core material and the vibration reduction strip which have a sound absorption effect are additionally arranged, so that the sound insulation performance of the wall body is effectively improved, the sound insulation effect of the wall body is improved without thickening the wall body or increasing the number of external wall panels, and the problems of cost increase, quality reduction and the like caused by the sound insulation effect are avoided; by optimally designing the shapes and structures of the joints of the heaven and earth keels, the side wrapping keels, the vibration reduction keels and the wall body core materials, the installation efficiency, stability and tightness of the wall body are improved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building construction technology, and in particular to a prefabricated building wall. Background Technology

[0002] With the rapid development of modern society, noise pollution is becoming increasingly serious, and people's requirements for the quietness of their living and working environments are constantly increasing, especially in places such as hotels, hospitals, schools, and conference halls, where the requirements for sound insulation are even more stringent. However, traditional light steel keel walls have significant shortcomings in sound insulation performance. The light steel keel itself has strong sound conductivity, making it difficult for the overall wall to meet high sound insulation requirements.

[0003] To improve sound insulation, existing technologies typically employ methods such as thickening walls or increasing the number of wall panels. However, these methods have several drawbacks: First, they encroach on valuable interior space, reducing usable area; second, they significantly increase the material, installation, and transportation costs of the walls, leading to an increase in overall building costs; and finally, excessively increasing wall thickness or the number of wall panels may reduce the stability of the walls themselves, affecting the safety of the building structure. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated building wall to solve the problems mentioned above.

[0005] The technical solution adopted by this utility model is: a prefabricated building wall, which includes: a frame keel, a noise-reducing keel, a wall core material and an outer wall panel. The frame keel has an annular cavity with openings on both sides. The noise-reducing keel and the wall core material are located in the annular cavity. The outer wall panel seals the openings on both sides of the annular cavity. The cross-section of the noise-reducing keel includes at least two Z-shaped structures connected end to end, which are used to divide the annular cavity into several noise-reducing reflection cavities.

[0006] Furthermore, the noise-reducing keel includes several Z-shaped keels and connecting keels. The Z-shaped keel includes at least: a first side keel and a second side keel with their large surfaces parallel to the exterior wall panel, and an oblique side keel located between the first side keel and the second side keel to connect the two. The width of the first side keel is greater than the width of the second side keel. The two ends of the connecting keel are respectively connected to different second side keels, forming an angle greater than 0° and less than 180° with the second side keel.

[0007] Furthermore, the Z-shaped keel includes a third lateral bone, one end of which is connected to the oblique lateral bone, and the other end is connected to the first lateral bone or the second lateral bone, forming an angle greater than 0° and less than 180° with the first lateral bone or the second lateral bone.

[0008] Furthermore, the Z-shaped keel includes a fourth side bone, one end of which is connected to the first side bone, forming an angle greater than 0° and less than 180° with the first side bone; the other end extends toward the second side bone, and has gaps with the wall core material, the oblique side bone, the second side bone and the third side bone.

[0009] Furthermore, the third lateral bone and / or the fourth lateral bone are perpendicular to the first lateral bone.

[0010] Furthermore, the connecting keel is perpendicular to the second side bone.

[0011] Furthermore, the wall core material includes a wall core gypsum board and a rock wool sound-absorbing board, at least one side of the wall core gypsum board is connected to the connecting keel; the rock wool sound-absorbing board is arranged on both sides of the wall core gypsum board in the thickness direction, and there are gaps between the rock wool sound-absorbing board and the exterior wall panel and the noise reduction keel.

[0012] Furthermore, the frame keel includes top and bottom keels and side keels, the top and bottom keels and the side keels are alternately connected to form a ring-shaped frame keel, and the outer wall panel connects the outer walls of the top and bottom keels and the side keels.

[0013] Furthermore, the side keel has an E-shaped cross-section, and the side end of the wall core material is inserted into the opening end of the E-shaped structure. The side keel and the top and bottom keels are respectively provided with vibration damping strips on the side away from the wall core material.

[0014] The beneficial effects of this utility model are as follows: By optimizing the structure of the noise-reducing keel and adding sound-absorbing wall core material and vibration-damping strips, the sound insulation performance of the wall is effectively improved. This eliminates the need to thicken the wall or increase the number of exterior wall panels to enhance sound insulation, thus avoiding increased costs and reduced quality. Furthermore, by optimizing the shape and structure of the connections between the top and bottom keels, side keels, vibration-damping keels, and wall core material, the installation efficiency, stability, and tightness of the wall are improved. Attached Figure Description

[0015] Figure 1 This is a top sectional view of an embodiment of the present utility model;

[0016] Figure 2 This is an appendix to the embodiments of this utility model. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This is a partial perspective view of an embodiment of the present utility model;

[0018] Figure 4 This is an appendix to the embodiments of this utility model. Figure 3 Enlarged view of the structure at point B;

[0019] Figure 5 This is an appendix to the embodiments of this utility model. Figure 3 Enlarged view of the structure at point C;

[0020] Figure 6 This is a top view of the noise-reducing keel in an embodiment of this utility model;

[0021] Figure 7 This is a side view of the keel structure in an embodiment of this utility model;

[0022] Figure 8 This is a top view of the side-mounted keel in an embodiment of this utility model.

[0023] In the picture:

[0024] 100. Frame keel; 110. Top and bottom keels; 120. Side keel; 130. Mounting groove;

[0025] 200. Noise-reducing keel; 210. Z-shaped keel; 211. First side keel; 212. Second side keel; 213. Oblique side keel; 214. Third side keel; 215. Fourth side keel; 220. Connecting keel;

[0026] 300. Wall core material; 310. Wall core gypsum board; 320. Rock wool sound-absorbing board;

[0027] 400. Exterior wall panels;

[0028] 500, vibration damping strip. Detailed Implementation

[0029] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0031] Reference Appendix Figure 1-8 This embodiment provides a prefabricated building wall, which includes a frame keel 100, a noise-reducing keel 200, a wall core material 300, and an exterior wall panel 400. The frame keel 100 has an annular cavity with openings on both sides. The noise-reducing keel 200 and the wall core material 300 are located within the annular cavity, and the exterior wall panel 400 seals the openings on both sides of the annular cavity. The cross-section of the noise-reducing keel 200 includes at least two Z-shaped structures connected end-to-end, used to divide the annular cavity into several noise-reducing reflective cavities.

[0032] The frame keel 100 is the basic structure of the entire prefabricated building wall. Its internal annular cavity provides installation space for the noise-reducing keel 200 and the wall core material 300. The outer wall panel 400 seals the openings on both sides of the annular cavity, ensuring the integrity and stability of the wall. The cross-section of the noise-reducing keel 200 is designed with multiple Z-shaped structures connected end to end. This design not only increases the structural strength of the wall, but also divides the annular cavity into multiple noise-reducing reflection cavities. This allows noise waves transmitted from the outer wall panel 400 to be reflected multiple times by the noise-reducing keel 200 within the noise-reducing reflection cavities, resulting in sound energy loss. Then, the noise waves are transmitted to the wall core material 300, where their sound energy is further weakened by absorption or blocking, effectively improving the sound insulation performance of the entire prefabricated building wall.

[0033] To meet the installation requirements of the noise-reducing keel 200 and the wall core material 300, the frame keel 100 in this embodiment is configured to include two sets of top and bottom keels 110 and two sets of side keels 120. The longitudinal section of the top and bottom keels 110 is U-shaped, and the two sets of top and bottom keels 110 are arranged in parallel with their openings facing each other. The cross section of the side keels 120 is E-shaped, and the two sets of side keels 120 are arranged in parallel with their openings facing each other. The two sets of side keels 120 are located at the two transverse ends of the top and bottom keels 110, and are alternately connected with the two sets of top and bottom keels 110 to form a ring-shaped frame keel 100, so that the inner side of the frame keel 100 is a groove-shaped structure, which facilitates the installation, fixing, and enclosure of the noise-reducing keel 200 and the wall core material 300. The outer wall panel 400 connects the outer walls of the top and bottom keels 110 and the side keels 120 to seal the annular cavity and ensure the integrity and stability of the wall.

[0034] Reference Appendix Figure 3 , 4 6. The noise reduction keel 200 includes several Z-shaped keels 210 and connecting keels 220. The Z-shaped keel 210 includes at least: a first side keel 211 and a second side keel 212 with the large surface parallel to the outer wall panel 400, and an oblique side keel 213 located between the first side keel 211 and the second side keel 212 to connect the two. The width of the first side keel 211 is greater than the width of the second side keel 212. The two ends of the connecting keel 220 are respectively connected to different second side keels 212, forming an angle greater than 0° and less than 180° with the second side keel 212.

[0035] The noise-reducing keel 200, through the combination of the Z-shaped keel 210 and the connecting keel 220, effectively separates the annular cavity, thereby forming several noise-reducing reflective cavities. In the Z-shaped keel 210, the large surfaces of the first side rib 211 and the second side rib 212 are parallel to the outer wall panel 400, and the width of the first side rib 211 is greater than the width of the second side rib 212. This design allows the wall to have better bending resistance when subjected to external forces, helping to improve the overall stability of the wall. The oblique side rib 213 connects the first side rib 211 and the second side rib 212 at a certain angle, allowing noise waves to be reflected and reduced multiple times during transmission, achieving a good noise reduction effect. The two ends of the connecting keel 220 are respectively connected to different second side ribs 212 at a certain angle, which not only increases the structural strength of the noise-reducing keel 200 but also effectively separates the sound wave path, optimizes the structure of the noise-reducing reflective cavities, and further improves the noise reduction effect.

[0036] In addition to the above, the morphology and structure of the Z-shaped keel can be further optimized to create a more complex noise reduction and reflection cavity structure within the frame keel 100, thereby further improving the noise reduction effect. For example, a third side bone 214 can be constructed in the Z-shaped keel 210. One end of the third side bone 214 is connected to the oblique side bone 213, and the other end is connected to the first side bone 211 or the second side bone 212, forming an angle greater than 0° and less than 180° with the first side bone 211 or the second side bone 212. A fourth side bone 215 can also be constructed in the Z-shaped keel 210. One end of the fourth side bone 215 is connected to the first side bone 211, forming an angle greater than 0° and less than 180° with the first side bone 211, and the other end extends toward the second side bone 212. There are gaps between the wall core material 300, the oblique side bone 213, the second side bone 212 and the third side bone 214. While increasing the sound wave reflecting surface, it avoids direct connection between solid structures and avoids the sound wave weakening the noise reduction effect of the noise reduction reflection cavity along the path of sound wave conduction in the solid.

[0037] Furthermore, the third side bone 214 and the fourth side bone 215 can be constructed to be perpendicular to the first side bone 211 to optimize the sound wave noise reduction reflection path and improve the structural strength of the noise reduction keel 200, thereby enhancing the compression resistance of the entire prefabricated building wall.

[0038] Reference Appendix Figure 1The wall core material 300 includes a wall core gypsum board 310 and a rock wool sound-absorbing board 320. One side of the wall core gypsum board 310 is connected to the connecting keel 220, and the other side is connected to the side wrapping keel 120 or the connecting keel 220 (determined by the number of noise reduction keels 200 in the prefabricated building wall, and the number of noise reduction keels 200 can be designed by those skilled in the art according to the construction requirements, and is not specifically limited here). The rock wool sound-absorbing board 320 is arranged on both sides of the wall core gypsum board 310 in the thickness direction, and there are gaps between the rock wool sound-absorbing board 320 and the outer wall panel 400 and the noise reduction keel 200. Rock wool sound-absorbing panel 320 can increase the damping of sound waves during propagation, converting sound energy into heat energy, effectively reducing the energy of sound waves, and improving the sound insulation effect of the wall. There are gaps between rock wool sound-absorbing panel 320, exterior wall panel 400, and noise reduction keel 200, so that noise waves cannot be directly transmitted from exterior wall panel 400 to rock wool sound-absorbing panel 320 along the thickness direction of the prefabricated building wall through solid conduction. Instead, they must pass through multiple reflections and noise reduction by noise reduction keel 200 before being transmitted to rock wool sound-absorbing panel 320 through air-solid conduction, thereby improving the sound absorption and noise reduction effect of the wall.

[0039] Similarly, 400mm exterior wall panels can also use gypsum board structures, and their thickness and number of layers can be configured according to actual construction needs, without further specific limitations here.

[0040] To facilitate connection with the wall core material 300, the noise-reducing keel 200 can be optimized so that the connecting keel 220 is perpendicular to the second keel, allowing the side end of the wall core gypsum board 310 to fit tightly against the large surface of the connecting keel 220. To improve the structural compactness and stability of the prefabricated building wall, the side end of the wall core material 300 (including the wall core gypsum board 310 and the rock wool sound-absorbing board 320) is inserted into the opening end of the E-shaped structure, forming a stable connection between the wall core material 300 and the side keel 120, preventing the wall core material 300 from shifting and improving the structural compactness.

[0041] In addition, mounting grooves 130 can be constructed on the outer walls of the side joists 120, the top of the top and bottom joists 110, and the bottom of the bottom and bottom joists 110, and vibration damping strips 500 can be constructed in the mounting grooves 130. Through the absorption of sound waves and vibration energy by the vibration damping strips 500, the noise waves transmitted from the outside are further reduced, improving the sound insulation and vibration damping performance of the prefabricated building walls. The material of the vibration damping strips 500 can be selected by those skilled in the art according to their needs, such as rubber or foam, to achieve the best sound insulation effect. The connection methods of the top and bottom joists 110 and the side joists 120 can be various methods such as bolt connection, snap-fit ​​connection, and welding to improve the convenience and stability of installation.

[0042] In addition to the above, wiring holes and other structures can be constructed on the noise reduction keel 110 to facilitate the installation of wiring harnesses inside the wall.

[0043] The construction method for the prefabricated building walls includes the following steps:

[0044] Adhere the vibration damping strips 500 into the mounting grooves of the top and bottom joists 110 and the side joists 120. Install one set of top and bottom joists 110 onto the floor using expansion bolts. Install the side joists 120 at both ends of the length of the installed top and bottom joists 110. Install the noise-reducing joists 200 between the side joists 120 and on the installed top and bottom joists 110. Fix the wall core material 300 to the side joists 120 and the noise-reducing joists 200. Install another set of top and bottom joists 110 at the top of the side joists 120 and the noise-reducing joists 200. Finally, install and fix the exterior wall panel 400.

[0045] Compared with existing technologies, the beneficial effects of this utility model are as follows: By optimizing the structure of the noise-reducing keel 200 and adding a sound-absorbing wall core material 300 and a vibration-damping strip 500, the sound insulation performance of the wall is effectively improved. This eliminates the need to thicken the wall or increase the number of exterior wall panels 400 to improve sound insulation, thus avoiding the problems of increased costs and reduced quality associated with these methods. Furthermore, by optimizing the shape and structure of the connections between the top and bottom keels 110, the side keels 120, the vibration-damping keels, and the wall core material 300, the installation efficiency, stability, and tightness of the wall are improved.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0047] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fabricated building wall, characterized in that, The application relates to a frame keel, a noise reduction keel, a wall core material and an outer wall plate, wherein a ring-shaped cavity with two open sides is arranged in the frame keel, the noise reduction keel and the wall core material are arranged in the ring-shaped cavity, and the outer wall plate seals the two open sides of the ring-shaped cavity; the cross section of the noise reduction keel comprises at least two Z-shaped structures connected in sequence, and the ring-shaped cavity is divided into a plurality of noise reduction reflection cavities. The noise reduction keel comprises a plurality of Z-shaped keels and connecting keels, the Z-shaped keel at least comprises a first side bone and a second side bone with large surfaces parallel to the outer wall plate and an inclined side bone arranged between the first side bone and the second side bone to connect the two, the width of the first side bone is larger than that of the second side bone; the two side ends of the connecting keel are connected with different second side bones respectively, and the included angle formed between the connecting keel and the second side bone is larger than 0 degrees and smaller than 180 degrees.

2. The fabricated building wall of claim 1, wherein, The Z-shaped keel comprises a third side bone, one side end of the third side bone is connected with the inclined side bone, and the other side end is connected with the first side bone or the second side bone, and the included angle formed between the third side bone and the first side bone or the second side bone is larger than 0 degrees and smaller than 180 degrees.

3. The fabricated building wall of claim 2, wherein, The Z-shaped keel comprises a fourth side bone, one side end of the fourth side bone is connected with the first side bone, and the included angle formed between the fourth side bone and the first side bone is larger than 0 degrees and smaller than 180 degrees; the other side end extends towards the second side bone, and gaps are formed between the wall core material, the inclined side bone, the second side bone and the third side bone.

4. The fabricated building wall of claim 3, wherein, The third side bone and / or the fourth side bone are perpendicular to the first side bone.

5. The fabricated building wall of claim 4, wherein, The connecting keel is perpendicular to the second side bone.

6. The fabricated building wall of any of claims 2-5, wherein, The wall core material comprises a wall core gypsum board and a rock wool sound absorption board, at least one side end of the wall core gypsum board is connected with the connecting keel; the rock wool sound absorption board is arranged on the two sides in the thickness direction of the wall core gypsum board, and gaps are formed between the rock wool sound absorption board and the outer wall plate and the noise reduction keel.

7. The fabricated building wall of claim 6, wherein, The frame keel comprises a top-and-bottom keel and a side wrapping keel, the top-and-bottom keel and the side wrapping keel are alternately connected to form the ring-shaped frame keel, and the outer wall plate is connected with the outer walls of the top-and-bottom keel and the side wrapping keel.

8. The fabricated building wall of any of claims 1-5, 7, wherein, The cross section of the side wrapping keel is in an E-shaped structure, the side end of the wall core material is inserted into the open end of the E-shaped structure, and the side of the side wrapping keel and the top-and-bottom keel away from the wall core material is arranged with a damping strip.

9. The fabricated building wall of claim 8, wherein, ​

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