Device for ensuring air tightness of slab joints of light fabricated building

Abstract

The utility model discloses a device for ensuring the air tightness of a slab joint of a light fabricated building, which comprises a plurality of prefabricated external wall panels connected in sequence and a structural column used for fixing the prefabricated external wall panels, and the structural column is connected with the prefabricated external wall panels through an air tightness connecting structure; the airtight connecting structure comprises a first rock wool board arranged between the structural column and the prefabricated outer wall board. The airtight connecting structure is arranged at the joint of the prefabricated external wall panel and the structural column, so that a good airtight effect can be achieved for the joint of the prefabricated external wall panel and the structural column, the situation that gas passes through the joint of the prefabricated external wall panel and the structural column is avoided, and installation airtightness is guaranteed; due to the fact that the first rock wool board has the excellent heat preservation performance, the good sound insulation effect and the good fireproof performance, the first rock wool board is pressed into the positioning strip board through the prefabricated outer wall board by means of the rock wool connecting board on the first rock wool board, and then the waterproof vapor-proof film is matched, so that the airtight performance is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabricated building, concretely to a guarantee light fabricated building's board joint air tightness device. BACKGROUND

[0002] Fabricated building refers to the large number of on-site operation work in the traditional construction mode is transferred to the factory. In the factory, building components and accessories (such as floor, wallboard, stairs, balcony, etc.) are processed and produced, transported to the building construction site, and assembled and installed on site through reliable connection method to form the building. The fabricated building has fast construction speed and low production cost, and is rapidly popularized all over the world. The early fabricated building is relatively rigid and uniform. Later, people improved the design, increased flexibility and diversity, so that the fabricated building can not only be built in batches, but also have rich styles. According to the form of prefabricated components and construction method, there are five types of block building, plate building, box building, skeleton plate building and lifting plate lifting layer building.

[0003] According to the authorized Chinese patent with application number CN202320359526.3, a building outer wall sealing structure is disclosed, which includes a plurality of prefabricated outer wall boards connected in sequence, a structural beam for fixing the prefabricated outer wall boards, and a structural column for fixing the prefabricated outer wall boards. A board joint is provided between two interconnected prefabricated outer wall boards, characterized in that the board joint is filled with a foaming agent, a PE rod and MS sealant. The foaming agent is located inside the board joint, the PE rod is close to the outside of the board joint, and a gap is provided between the foaming agent and the PE rod to form a drainage cavity. The MS sealant is used to block the gap outside the PE rod. The prefabricated outer wall board of the utility model is filled with a foaming agent, a PE rod and MS sealant in the board joint. The drainage cavity between the foaming agent and the PE rod is used to drain water vapor, improving the installation air tightness of the prefabricated outer wall board. However, only rock wool boards are provided between the prefabricated outer wall boards and the structural columns, which is still prone to gaps, affecting air tightness. UTILITY MODEL CONTENT

[0004] To solve the defects in the prior art, the utility model provides a board joint air tightness device for ensuring the light prefabricated building.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] This utility model discloses a device for ensuring the airtightness of panel joints in lightweight prefabricated buildings. It includes multiple prefabricated exterior wall panels connected sequentially, and structural columns for fixing the prefabricated exterior wall panels. The structural columns and prefabricated exterior wall panels are connected by an airtight connection structure. The airtight connection structure includes a first rock wool board disposed between the structural column and the prefabricated exterior wall panel. The top of the structural column has two positioning strips, and the first rock wool board has a rock wool connecting plate that matches the two positioning strips. The bottom of the prefabricated exterior wall panel has a limiting abutment groove that matches and connects to the rock wool connecting plate. A waterproof and airtight membrane is affixed to the corner where the structural column and the prefabricated exterior wall panel connect.

[0007] As a preferred technical solution of this utility model, both ends of the first rock wool board are provided with extended rock wool corner plates with an L-shaped cross-section, and the connection between the prefabricated exterior wall panel and the structural column is provided with a rock wool connecting groove that matches the extended rock wool corner plate.

[0008] As a preferred technical solution of this utility model, the airtight connection structure further includes an embedded groove provided on the bottom edge of two adjacent prefabricated exterior wall panels, and an abutment support plate is provided inside the two adjacent embedded grooves.

[0009] As a preferred technical solution of this utility model, the top surface of the abutting support plate is provided with a V-shaped groove, and the inner wall of the embedded groove is provided with an inclined groove that matches the V-shaped groove.

[0010] As a preferred technical solution of this utility model, the space between two adjacent prefabricated exterior wall panels is filled from the inside out with a foaming agent, a PE rod, and a second rock wool board located above the abutting support plate, and the cavity formed between the foaming agent and the PE rod constitutes a drainage cavity.

[0011] As a preferred technical solution of this utility model, the prefabricated exterior wall panel includes an upper panel and a lower panel, and an insulation board and a sound insulation board are provided between the upper panel and the lower panel.

[0012] The beneficial effects of this utility model are:

[0013] This device for ensuring the airtightness of panel joints in lightweight prefabricated buildings, by providing an airtight connection structure at the joint between the prefabricated exterior wall panels and structural columns, can effectively prevent gas from passing through the joint, thus ensuring installation airtightness. Because the first rock wool board has excellent thermal insulation, good sound insulation, and fire resistance, the rock wool connecting plate on the first rock wool board allows the prefabricated exterior wall panel to press the first rock wool board into the positioning strip, and with the addition of a waterproof vapor barrier membrane, the airtightness is further enhanced. Attached Figure Description

[0014] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0015] Figure 1 is a sectional view of a plate joint air tightness device for ensuring light prefabricated building of the present application;

[0016] Figure 2 is a first rock wool plate structure schematic view of a plate joint air tightness device for ensuring light prefabricated building of the present application.

[0017] In the drawing: 1, prefabricated outer wall plate; 101, upper plate; 102, lower plate; 103, heat preservation plate; 104, sound insulation plate; 2, structural column; 3, air tightness connecting structure; 4, first rock wool plate; 5, positioning strip plate; 6, rock wool connecting plate; 7, limiting abutting groove; 8, waterproof air barrier film; 9, extended rock wool corner plate; 10, rock wool connecting groove; 11, embedded groove; 12, abutting support plate; 13, V-shaped groove; 14, inclined groove; 15, foaming agent; 16, PE stick; 17, second rock wool plate; 18, drainage cavity. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present application are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and do not constitute a limitation to the present application.

[0019] Embodiment: As shown in Figure 1 and Figure 2 , the present application is a plate joint air tightness device for ensuring light prefabricated building, which comprises a plurality of prefabricated outer wall plates 1 connected in sequence, and a structural column 2 for fixing the prefabricated outer wall plates 1, wherein the structural column 2 and the prefabricated outer wall plates 1 are connected through an air tightness connecting structure 3; the air tightness connecting structure 3 comprises a first rock wool plate 4 arranged between the structural column 2 and the prefabricated outer wall plates 1, the top end of the structural column 2 is provided with two positioning strip plates 5, the first rock wool plate 4 is provided with rock wool connecting plates 6 matched with the two positioning strip plates 5, the bottom end of the prefabricated outer wall plates 1 is provided with limiting abutting grooves 7 matched with the rock wool connecting plates 6, and the connecting corners of the structural column 2 and the prefabricated outer wall plates 1 are pasted with waterproof air barrier films 8; by arranging the air tightness connecting structure 3 at the connecting position of the prefabricated outer wall plates 1 and the structural column 2, the connecting position of the prefabricated outer wall plates 1 and the structural column 2 can have good air tightness, and the gas passing through the connecting position of the prefabricated outer wall plates 1 and the structural column 2 is avoided, so that the installation air tightness is ensured; since the first rock wool plate 4 has excellent heat preservation performance, good sound insulation effect and fireproof performance, the rock wool connecting plates 6 on the first rock wool plate 4 make the prefabricated outer wall plates 1 press the first rock wool plate 4 into the positioning strip plates 5, and the waterproof air barrier film is matched, so that the air tightness is better.

[0020] The two ends of the first rock wool plate 4 are provided with extension rock wool corner plates 9 with L-shaped cross sections, and the connection between the prefabricated outer wall plate 1 and the structural column 2 is provided with rock wool connecting grooves 10 matched with the extension rock wool corner plates 9, so that the air tightness is better and the heat preservation effect is better.

[0021] The air tightness connecting structure 3 further comprises embedded grooves 11 arranged at the bottom end sides of the adjacent two prefabricated outer wall plates 1, and the inside of the adjacent two embedded grooves 11 is provided with abutting support plates 12, the top end surface of the abutting support plate 12 is provided with a V-shaped groove 13, and the inner wall of the embedded groove 11 is provided with an inclined groove 14 matched with the V-shaped groove 13, so that the air tightness is better.

[0022] The inside of the adjacent two embedded grooves 11 is provided with abutting support plates 12, the top end surface of the abutting support plate 12 is provided with a V-shaped groove 13, and the inner wall of the embedded groove 11 is provided with an inclined groove 14 matched with the V-shaped groove 13, so that the air tightness is better.

[0023] The prefabricated outer wall plate 1 comprises an upper plate 101 and a lower plate 102, and the upper plate 101 and the lower plate 102 are provided with a heat preservation plate 103 and a sound insulation plate 104.

[0024] When working, the plate joint air tightness device for ensuring lightweight fabricated buildings is provided with the air tightness connecting structure 3 at the connection between the prefabricated outer wall plate 1 and the structural column 2, so that the connection between the prefabricated outer wall plate 1 and the structural column 2 has good air tightness, and the situation that gas passes through the connection between the prefabricated outer wall plate 1 and the structural column 2 is avoided, thereby ensuring the installation air tightness; the first rock wool plate 4 has excellent heat preservation performance, good sound insulation effect and fireproof performance, the rock wool connecting plate 6 on the first rock wool plate 4 enables the prefabricated outer wall plate 1 to press the first rock wool plate 4 into the positioning strip plate 5, and the waterproof vapor barrier film is further matched, so that the air tightness is better.

[0025] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for ensuring the air tightness of the joints of panels of a light assembly building, comprising a plurality of prefabricated outer wall panels (1) connected in succession, and structural columns (2) for fixing the prefabricated outer wall panels (1), characterized in that, The structural column (2) is connected with the prefabricated outer wall panel (1) through an air-tight connection structure (3); The air-tight connection structure (3) comprises a first rock wool plate (4) arranged between the structural column (2) and the prefabricated outer wall panel (1), the top end of the structural column (2) is provided with two positioning strip plates (5), the first rock wool plate (4) is provided with a rock wool connecting plate (6) matched with the two positioning strip plates (5), the bottom end of the prefabricated outer wall panel (1) is provided with a limiting abutting groove (7) matched with the rock wool connecting plate (6), and the connecting corners of the structural column (2) and the prefabricated outer wall panel (1) are all pasted with waterproof and air-proof membranes (8).

2. A device for ensuring the air tightness of the joints of panels of a light-weight fabricated building according to claim 1, characterized in that, Both ends of the first rock wool plate (4) are provided with extension rock wool corner plates (9) with L-shaped cross sections, and the connecting positions of the prefabricated outer wall panel (1) and the structural column (2) are all provided with rock wool connecting grooves (10) matched with the extension rock wool corner plates (9).

3. A device for ensuring the air tightness of the joints of panels of a light-weight building according to claim 1, characterized in that, The air-tight connection structure (3) further comprises embedded grooves (11) arranged at the bottom edges of adjacent two prefabricated outer wall panels (1), and abutting support plates (12) are arranged in the embedded grooves (11).

4. A device for ensuring the air tightness of the joints of panels of a light-weight building according to claim 3, characterized in that, The top end surface of the abutting support plate (12) is a V-shaped groove (13), and the inner wall of the embedded groove (11) is provided with an inclined groove (14) matched with the V-shaped groove (13).

5. A device for ensuring the air tightness of the joints of panels of a light-weight building according to claim 1, characterized in that, From inside to outside, the adjacent two prefabricated outer wall panels (1) are filled with a foaming agent (15) above the abutting support plate (12), a PE rod (16) and a second rock wool plate (17) in sequence, and a cavity formed between the foaming agent (15) and the PE rod (16) constitutes a drainage cavity (18).

6. A device for ensuring the air tightness of the joints of panels of a light-weight building according to claim 1, characterized in that, The prefabricated outer wall panel (1) comprises an upper plate (101) and a lower plate (102), and a heat preservation plate (103) and a sound insulation plate (104) are arranged between the upper plate (101) and the lower plate (102).

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