CN219993534U

CN219993534U - Flat fireproof door

Info

Publication number: CN219993534U
Application number: CN202320498819.XU
Authority: CN
Inventors: 汪仕兴; 彭程文; 胡勇
Original assignee: Zhuhai Hua Yan Wood Co ltd
Current assignee: Zhuhai Hua Yan Wood Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-11-10
Anticipated expiration: 2033-03-15

Abstract

The utility model relates to a flat fireproof door, which comprises an assembly panel, wherein the assembly panel comprises a drum plate positioned in the middle, an edge protection panel positioned at the outermost side and a buckling line positioned at a corner area formed by the inner side of the edge protection panel and the drum plate, the edge protection panel is provided with an outwards concave vacancy at the position, close to the lower surface, of the inner side, and the vacancy is matched with the periphery of the drum plate; the border panel and the drum portion have an overlapping area when viewed in a front-to-rear direction, and the buckle line is located inside the overlapping area. The utility model has the advantages of reduced buckling line deformation probability, convenient painting of parts, improved product quality, good appearance of the door for a long time, and the like.

Description

Flat fireproof door

Technical Field

The utility model relates to a closing device with a fireproof function on an entrance or a channel of a civil and industrial building, in particular to a flat fireproof door with an assembled panel.

Background

The fireproof door can meet the requirements of fire resistance stability, integrity and heat insulation in a certain time, has the function of preventing fire from spreading and smoke from spreading besides the function of a common door, and can prevent the fire from spreading in a certain time so as to ensure personnel evacuation.

Existing flat fireproof doors often have an assembled veneer that looks very attractive. Referring to fig. 1, the assembled panel outside the door comprises a rectangular drum plate 2 located in the middle, a border protection panel 1 located at the outer periphery of the drum plate, i.e., the outermost side of the door (with the geometric center of the door as the origin in the drawing), and a buckle line 3 located at the inner side of the border protection panel. The drum plate 2 is provided with a drum plate sloping edge 21 on the inner side of the buckle line 3. The transition from the drum plate 2 to the side guard panel 1 in different levels is formed by the drum plate bevel edge 21, the arc-shaped outer surface of the buckling line 3 and the like, so that the visual aesthetic feeling is created.

The existing structure of the assembled panel is seen in fig. 2 to 3. The side protection panel 1 and the drum plate 2 are arranged side by side, are arranged in parallel in the vertical direction without overlapping, and the buckling line 3 seals the joint between the two plates. Because the drum plate is thick at the center and becomes thinner around gradually, but thinnest at the peripheral edges, the peripheral edges of the drum plate, particularly at the four corners of the corresponding door, are often the most easily deformed areas, not only in actual use of the finished door, but also in the manufacture of the door. In manufacture, the drum plate is often press-fitted to the door core portion, and the four corners of the drum plate are also often areas of empty drum deformation.

In this configuration, the deformation of the drum plate will be transmitted and act on the buckle wire 3, since this is precisely in the deformed region of the drum plate 2. The surface of the buckling line is a light-emitting surface, so that the surface effect requirement is high, and the mosquito nails can only be used, are difficult to resist external force and are easy to relax. That is, the buckle often also deforms and loosens.

In addition, the door manufacturer should not change the appearance as much as possible, once the appearance of the door is liked by the market or the customer.

Disclosure of Invention

The utility model aims to solve the problem of deformation of the edge of the drum plate and the buckling line in the prior art on the premise of keeping the appearance of the facing layer of the flat fireproof door in the prior art unchanged.

In order to achieve the above-mentioned purpose, the present utility model provides a flat fireproof door, which comprises an assembly panel, wherein the assembly panel comprises a drum plate positioned in the middle, an edge protection panel positioned at the outermost side and a buckling line positioned at a corner area formed by the inner side of the edge protection panel and the drum plate, the edge protection panel is provided with a hollow concave outwards at the position, close to the lower surface, of the inner side, and the hollow is matched with the periphery of the drum plate; the border panel and the drum portion have an overlapping area when viewed in a front-to-rear direction, and the buckle line is located inside the overlapping area.

Further, the gap is in a right-angle step shape.

Further, the edge protection panel and the drum plate are positioned on the same horizontal plane at the bottom.

Further, the corner area is a right-angle area, the buckling line is matched with the corner area, the buckling line is provided with an outer surface with an arc-shaped cross section, and the drum plate is provided with a drum plate bevel edge with a high center and a short periphery near the buckling line.

The beneficial effects of the utility model are as follows:

firstly, as the periphery of the drum plate is matched with the blank of the edge protection panel, the warping stress of the drum plate is uniformly distributed to the corresponding edge protection panel, and the stress effect of the drum plate on the buckling line is effectively reduced, so that the buckling line deformation and the probability of the peripheral deformation of the drum plate are greatly reduced; thus, the door can maintain good appearance for a long time in use;

secondly, the buckling lines become decorative, which is helpful for coating the drum plate on the finished product part; meanwhile, the finished product of the paint component of the drum plate can be realized, and the paint facing of the edge protection panel realizes the roll coating process;

thirdly, in the aspect of the lamination of the door leaf, the drum plate and the edge protection panel are laminated at one time, so that the comprehensive efficiency and the quality level of the product are improved.

Drawings

Fig. 1 is a front view of a flat panel fire door of the prior art;

FIG. 2 is a schematic diagram of the assembly relationship of the parts of the assembled panel in the prior art;

fig. 3 is an exploded view of the components of fig. 2 exploded.

Fig. 4 is a schematic diagram of the assembly relationship of each part of the assembly panel of the flat fireproof door of the present utility model;

FIG. 5 is an exploded view of the components of FIG. 4 exploded;

fig. 6 is a partial cross-sectional view of a flat panel fire door of the present utility model.

The utility model is further described below with reference to the drawings and examples.

Detailed Description

Referring to fig. 4 and 5, the assembled panel of the present utility model comprises a drum plate 2 located in the middle, a border protection panel 1 located at the outermost side and a buckling line 3 located in a corner area formed by the inner side of the border protection panel 1 and the drum plate 2, wherein the border protection panel 1 is provided with a hollow 11 recessed outwards near the lower surface on the inner side, and the hollow 11 is matched with the periphery 22 of the drum plate 2; the border shield panel 1 and the drum plate 2 have an overlapping area seen in the front-rear direction, and the buckle line 3 is located inside the overlapping area. The buckling line 3 does not overlap with the overlapping area. Alternatively, the buckle 3 is vertically offset from the mating area of the two plates.

The gap 11 is in a right-angle step shape, so that the processing is convenient. At the same time, it is also convenient to adapt the drum plate 2.

The border protection panel 1 and the drum plate 2 are on the same horizontal plane at the bottom. This facilitates bonding of the combination to the core portion (fig. 6, described below). In addition, the edge protection panel 1 and the drum plate 2 are preferably connected at the bottom by code nails, so that the combination of the two is firmer.

The corner area where the buckle line 3 is located is a right-angle area, and the buckle line 3 has a shape adapted to the corner area. The buckle line 3 has an outer surface with an arc-shaped cross section.

The drum plate 2 is provided with a drum plate sloping edge 21 with a high center and a short periphery adjacent to the buckling line.

Referring to fig. 6, the flat fire door of the present utility model is provided with identical assembly panels on both front and rear sides. The same assembled panels are joined from front and rear to the intermediate core portion 4, respectively. The core portion 4 includes a fire-retardant material therein.

Finally, it should be emphasized that the present utility model is not limited to the above-described embodiments, but is merely preferred embodiments of the utility model, and any modifications, equivalents, improvements, etc. within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a dull and stereotyped fire door, possesses an equipment panel, the equipment panel include a drum board that is located in the middle, a border protection panel that is located the outside and a line that detains that is located border protection panel inboard with the bight region that the drum board formed, its characterized in that:

the side protection panel is provided with an outward concave vacancy at the position, close to the lower surface, of the inner side, and the vacancy is matched with the periphery of the drum plate; the border panel and the drum plate have an overlapping area when viewed in a front-rear direction, and the buckle line is located inside the overlapping area.

2. A flat panel fire door as claimed in claim 1, wherein: the gap is in a right-angle step shape.

3. A flat panel fire door as claimed in claim 2, wherein: the edge protection panel and the drum plate are positioned on the same horizontal plane at the bottom.

4. A flat panel fire door as claimed in claim 2, wherein: the corner area is a right-angle area, the buckling line is matched with the corner area, the buckling line is provided with an outer surface with an arc-shaped cross section, and the drum plate is provided with a drum plate bevel edge with a high center and a short periphery close to the buckling line.