Three-wall and two-space prefabricated wall system

Abstract

A novel three-wall and two-space assembled wall system includes a wall keel, an insulation board, a wall panel connector, an inner wall panel and an outer wall panel; the insulation board has a plurality of gap holes with longitudinal center lines arranged in parallel, and a square tube lining keel is inserted into each gap hole; the outer side of the insulation board is against the inner side of the wall keel, and the wall keel and the insulation board are screwed and fixed by self-tapping screws passing through the wall keel and the corresponding lining keel in the insulation board. The outer side of the wall panel connector is against the inner side of the insulation board, and the wall panel connector is screwed and fixed by self-tapping screws passing through the wall panel connector and the corresponding lining keel in the insulation board; the inner side of the wall panel connector is against and fixed to the inner wall panel; the outer wall panel is against the outer side of the wall keel and fixed to the wall keel. The invention not only enhances the strength of the wall, but also improves the thermal insulation performance of the wall.

Description

Technical Field

[0001] The invention belongs to the field of prefabricated buildings, and in particular relates to a modular and standardized green prefabricated building wall system that does not require on-site pouring or welding. Background Art

[0002] Prefabricated buildings are detachable and reusable, and there is no residual construction waste during on-site construction, which is very consistent with the concept of green and environmentally friendly buildings. Chinese patent CN109972765A discloses a three-wall and two-space prefabricated wall system, where the "three walls" refer to the outer wall board layer, the wall main board layer and the inner wall board layer, and the "two spaces" refer to the outer channel space and the inner channel space respectively built between the wall main board and the outer and inner wall boards; the outer channel space can accommodate the installation of pipes such as rainwater drainage and other pipes or lines, and the inner channel space can accommodate the installation of wires, cables and other pipes or lines; the channel space can be directly used as a ventilation duct for air circulation, which does not destroy the overall decoration beauty, makes full use of the space, and also provides the dehumidification performance of the wall; and the air layer formed by the channel space can be used to improve the overall thermal insulation performance of the building.

[0003] However, the wall main board layer in the middle of the structure is composed of several wall main boards spliced ​​horizontally in sequence, and the strength of the spliced ​​structure is limited. The wall panel keel covering the spliced ​​seam is also limited due to structural limitations, which makes the overall strength of the wall slightly weaker. Invention content

[0004] In view of this, the present invention proposes a novel three-wall and two-space assembled wall system, which is specifically:

[0005] The novel three-wall and two-space assembled wall system is characterized by comprising a wall keel, an insulation board, a wall panel connector, an inner wall panel and an outer wall panel;

[0006] The insulation board has a plurality of gap holes with longitudinal center lines arranged in parallel, and a square tube lining keel is inserted into each gap hole;

[0007] The outer side of the insulation board is attached to the inner side of the wall keel, and the self-tapping screws are passed through the wall keel and the corresponding inner lining keel in the insulation board to screw and fix the wall keel and the insulation board;

[0008] The outer side of the wall panel connector is attached to the inner side of the insulation board, and the self-tapping screws are passed through the wall panel connector and the corresponding inner lining keel in the insulation board to screw and fix the wall panel connector to the insulation board;

[0009] The inner side of the wall panel connector is in contact with and fixed to the inner wall panel;

[0010] The exterior wall panels are attached to the outer side of the wall keels and are fixedly connected to the wall keels.

[0011] Preferably, the wall keel is a grid-like keel mainly composed of a plurality of longitudinal beams and transverse beams welded and fixedly connected, wherein the longitudinal beams are square tubes and the transverse beams are profiles with a Z-shaped cross section.

[0012] Preferably, the wall keel and the insulation board are screwed and fixed by self-tapping screws penetrating through the inner vertical pieces of the transverse beams of the wall keel and the corresponding inner lining keels in the insulation board.

[0013] Preferably, the exterior wall panels are screwed and fixed to the outer vertical pieces of the transverse beams of the wall keel by self-tapping screws.

[0014] Preferably, the thermal insulation adopts magnesium oxysulfide board.

[0015] Preferably, there is an interference fit between the liner keel and the gap hole.

[0016] Preferably, the wall panel connector is a profile with a Z-shaped cross section.

[0017] Preferably, the wall panel connectors are arranged transversely.

[0018] Preferably, the outer vertical piece thereof abuts against the inner side of the insulation board, and the wall panel connector is screwed and fixed to the insulation board by self-tapping screws penetrating through the outer vertical piece of the wall panel connector and the corresponding longitudinal lining keel in the insulation board.

[0019] Preferably, the inner vertical piece of the wall panel connector is abutted against the inner wall panel and screwed and fixed.

[0020] The wall keels and wall panel connectors created by the present invention support the spaces of the two cavities respectively, and cleverly add lining keels in the gap holes of the insulation board to make installation more convenient. The structural form of the wall keel itself, as well as the vertically and horizontally staggered connection structure of the wall keel crossbeam, the longitudinal lining keel, and the horizontal wall panel connector all play a role in enhancing the wall strength of the system, and effectively reduce or even avoid the heat conduction effect caused by the direct connection of the connector, thereby improving the thermal insulation performance of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 A three-dimensional schematic diagram of a novel three-wall and two-space assembled wall system created by the present invention;

[0023] Figure 2 It is an oblique cross-sectional view of the novel three-wall and two-space assembled wall system created by the present invention;

[0024] Figure 3 is a three-dimensional schematic diagram of a wall panel connection member;

[0025] Figure 4 This is a schematic diagram of the installation process of this system. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] It should be noted that although the solution given in this embodiment is that the exterior wall panel 4 is on the outside and directly connected to the wall keel 1, and the interior wall panel 3 is on the inside and connected to the insulation panel 2 through the wall panel connector 5, one of the characteristics of this system is that the exterior wall panel and the interior wall panel can be interchanged as needed, that is, the panel shown in 4 can be replaced with an interior wall panel, and the panel shown in 3 can be replaced with an exterior wall panel. Therefore, the "exterior wall panel" and "interior wall panel" referred to in the invention only refer to the two sides of the wall panel keel 1, and are not limited to whether they are located outdoors or indoors in the building.

[0029] As shown in the figure, the novel three-wall and two-space assembled wall system created by the present invention comprises a wall keel 1, an insulation board 2, a wall panel connector 5, an inner wall panel 3 and an outer wall panel 4;

[0030] The wall keel 1 is a grid-shaped keel mainly composed of a plurality of longitudinal beams 11 and transverse beams 12 welded and fixedly connected. The longitudinal beams 11 are square tubes to enhance the overall strength. The transverse beams 12 are profiles with a Z-shaped cross section. The vertical pieces (121, 122) on both sides thereof not only enhance the overall strength of the transverse beams, but also serve as the installation base for installing the insulation board 2 and the exterior wall board 4 respectively.

[0031] The insulation board 2 is made of magnesium oxysulfide board, which has a plurality of gap holes 21 with longitudinal center lines and arranged in parallel. A square tube liner keel 22 is inserted into each gap hole 21. The liner keel 22 and the gap hole 21 are interference fit. The liner keel not only enhances the strength of the insulation board 2, but also provides an installation basis for fastening the insulation board 2 to the wall keel 1 by bolts.

[0032] See also Figure 3 The wall panel connector 5 also adopts a profile with a Z-shaped cross section, and the vertical pieces (51, 52) on both sides thereof not only play a role in enhancing the overall strength of the wall panel connector 5, but also can serve as an installation basis for connecting with the insulation board 2 and the inner wall board 3 respectively;

[0033] See also Figure 2 and Figure 4, the outer side of the insulation board 2 is attached to the inner side of the wall keel 1, and the self-tapping screws pass through the insulation board 2 and the longitudinal inner lining keel 22 in the gap hole 21 and the inner vertical piece 122 of the transverse beam of the wall keel 1 respectively, so as to fasten the insulation board 2 to the wall keel 1; the outer vertical piece 51 of the transversely arranged wall panel connector 5 is attached to the inner side of the insulation board 2, and the self-tapping screws pass through the outer vertical piece 51 of the wall panel connector 5 and the corresponding longitudinal inner lining keel 22 in the insulation board 2 to screw and fix the wall panel connector 5 to the insulation board 2; the inner vertical piece 52 of the wall panel connector 5 is attached to the inner wall panel 3 and screwed and fixed; the outer wall panel 4 is attached to the outer side of the wall keel 1, and is screwed and fixed to the outer vertical piece 121 of the transverse beam of the wall keel 1 by self-tapping screws;

[0034] Therefore, in the invention, the exterior wall panels, insulation panels, and interior wall panels constitute the "three walls" of the system, the wall keels 1 and the wall panel connectors 5 respectively support the space of the two cavities, and the inner lining keels are cleverly added in the gap holes of the insulation panels to make the installation more convenient. The structural form of the wall keel itself, as well as the vertical and horizontal staggered connection structure of the wall keel crossbeams, the longitudinal inner lining keels, and the horizontal wall panel connectors all play a role in enhancing the wall strength of the system, and effectively reduce or even avoid the heat conduction effect caused by the direct connection of the connectors, thereby improving the thermal insulation performance of the wall.

[0035] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Three-wall and two-space prefabricated wall system, It is characterized in that It comprises a wall keel (1), an insulation board (2), a wall board connector (5), an inner wall board (3) and an outer wall board (4); The heat preservation board has a plurality of gap holes (21) whose center lines are longitudinal and arranged in sequence and in parallel, and a square tube lining keel (22) is inserted into each gap hole (21), and the lining keel and the gap hole are interference fit; The outer side of the insulation board is abutted against the inner side of the wall keel, and the wall keel and the insulation board are screwed and fixed by self-tapping screws penetrating through the wall keel and the corresponding inner lining keel in the insulation board; the wall keel (1) is a grid-shaped keel mainly formed by welding and fixing a plurality of longitudinal beams (11) and transverse beams (12), wherein the longitudinal beams are square tubes and the transverse beams are profiles with a Z-shaped cross section; The wall panel connector adopts a Z-shaped cross-section profile, and is arranged horizontally. The outer vertical piece of the wall panel connector is attached to the inner side of the insulation board, and the self-tapping screw passes through the wall panel connector and the corresponding longitudinal lining keel in the insulation board to screw and fix the wall panel connector to the insulation board; the inner vertical piece of the wall panel connector is attached to and fixed to the inner wall board; The exterior wall panels are attached to the outer side of the wall keels and are fixedly connected to the wall keels.

2. The three-wall and two-space prefabricated wall system according to claim 1, It is characterized in that The wall keel and the insulation board are screwed and fixed by self-tapping screws penetrating through the inner vertical pieces of the transverse beams of the wall keel and the corresponding inner lining keels in the insulation board.

3. The three-wall and two-space assembled wall system according to claim 1, It is characterized in that The exterior wall panels are fixed by screwing with the outer vertical pieces of the horizontal beams of the wall keel through self-tapping screws.

Images