Embedded box type fireproof and smoke-proof sealing strip

Abstract

The utility model relates to an embedded installation box type fireproof smoke-proof sealing strip which comprises an installation base, a fireproof expansion sealing piece and a sealing strip body, a concave cavity is formed in the installation base, the fireproof expansion sealing piece is installed in the concave cavity, and sealing strip clamping parts are arranged on the cavity walls of the two sides, close to the opening end, of the concave cavity. And the two sides of the sealing strip are respectively clamped with the corresponding sealing strip clamping parts. The embedded box type fireproof and smoke-proof sealing strip is simple in structure and convenient to install, and due to the structural design of the fireproof expansion sealing piece, when a fire disaster occurs, when the fireproof expansion sealing piece is at the external temperature of about 200 DEG C, a gap between the frame and the sash can be completely sealed, and smoke and flames are prevented from overflowing from the gap.

Description

Technical Field

[0001] The utility model relates to the technical field of doors, in particular to an embedded mounted box-type fireproof and smokeproof sealing strip. Background Art

[0002] Most of the common sealing strips on the market are easily damaged by high temperature melting in the event of a fire, resulting in their inability to isolate smoke and toxic gases and fail to perform a sealing function. People are prone to inhaling toxic gases and becoming comatose. Therefore, the common sealing strips on the market are not conducive to people's selection. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies of the prior art and to provide an embedded-installation box-type fireproof and smokeproof sealing strip with a simple structure and good sealing effect.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A box-type embedded fireproof and smokeproof sealing strip comprises a mounting base, a fireproof expansion seal and a sealing strip, wherein the mounting base is provided with a concave cavity, the fireproof expansion seal is installed in the concave cavity, and sealing strip clamping parts are provided on both side walls of the concave cavity close to the opening end, and the two sides of the sealing strip are respectively clamped with the corresponding sealing strip clamping parts.

[0006] Furthermore, the sealing strip clamping portion includes a vertically arranged support block, an upper stop piece connected to the upper end of the support block, and a lower stop piece connected to the lower end of the support block, the upper stop piece, the support block and the lower stop piece together form a clamping groove, the sealing strip includes a sealing strip connecting portion and a resistance strip, the two sides of the sealing strip connecting portion are respectively clamped in the corresponding clamping grooves, and the sealing strip connecting portion is arranged on the outer end surface of the sealing strip connecting portion.

[0007] Furthermore, two abutment strips are provided, and the two abutment strips are parallel to each other and perpendicular to the outer end surface of the sealing strip connection portion.

[0008] Preferably, the sealing strip is made of silicone rubber.

[0009] Furthermore, the fireproof expansion seal is pasted in the cavity.

[0010] Preferably, the fireproof expansion seal is made of expanded graphite.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses an embedded box-type fireproof and smokeproof sealing strip, which has a simple structure and a fireproof expansion sealing member made of expanded graphite. When a fire occurs in the fireproof expansion sealing member, when the temperature reaches about 200°, the expanded graphite begins to expand until it expands to 20 times the size of the original body, and the gap between the frame and the fan can be completely sealed to prevent smoke and flames from overflowing from the gap, thereby having a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of an embedded box-type fireproof and smokeproof sealing strip.

[0014] Figure 2 The utility model is a cross-sectional structural schematic diagram of an embedded box-type fireproof and smokeproof sealing strip.

[0015] Figure 3 The utility model is a schematic diagram of the exploded structure of a box-type fireproof and smokeproof sealing strip for embedded installation. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0017] like Figures 1 to 3 As shown, the present embodiment provides an embedded box-type fireproof and smokeproof sealing strip, comprising a mounting base 1, a fireproof expansion seal 2 and a sealing strip 3. A concave cavity 11 is provided on the mounting base 1, and the fireproof expansion seal 2 is installed in the concave cavity 11. Specifically, the fireproof expansion seal 2 is pasted in the concave cavity 11. Sealing strip clamping parts 12 are provided on both side walls of the concave cavity 11 near the opening end, and both sides of the sealing strip 3 are clamped with the corresponding sealing strip clamping parts 12 respectively. Specifically, the mounting base 1 can be embedded around wooden door leaves and door frames, and the opening of the upper concave cavity 11 of the mounting base 1 is located on the outside.

[0018] As described above, the sealing strip clamping portion 12 includes a vertically arranged support block 121, an upper stopper 122 connected to the upper end of the support block 121, and a lower stopper 123 connected to the lower end of the support block 121. The upper stopper 122, the support block 121, and the lower stopper 123 together form a clamping groove 124, and the sealing strip 3 includes a sealing strip connecting portion 31 and a resisting strip 32, both sides of the sealing strip connecting portion 31 are respectively clamped in the corresponding clamping groove 124, and the sealing strip connecting portion 31 is arranged on the outer end surface of the sealing strip connecting portion 31.

[0019] As described above, two abutment strips 32 are provided, and the two abutment strips 32 are parallel to each other and perpendicular to the outer end surface of the sealing strip connecting portion 31 .

[0020] Preferably, the sealing strip 3 is made of silicone rubber. Since silicone rubber has good heat resistance, it has a good insulating and sealing effect on isolating medium-temperature smoke, so that the sealing strip 3 made of silicone can work for a long time at 180°C, can withstand several weeks or longer at a temperature slightly higher than 200°C, and can withstand high temperatures above 300°C instantly.

[0021] Preferably, the fireproof expansion seal 2 is made of expanded graphite. Such a structural design allows the fireproof expansion seal to expand to 20 times its original size when the temperature reaches about 200° when a fire occurs outside, and can completely seal the gap of the lower door seam, preventing smoke and flames from escaping from the gap.

[0022] The above is only a preferred embodiment of the present utility model, and it cannot be used to limit the scope of the present utility model. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present utility model and the content of the utility model description are still within the scope of the present utility model patent.

Claims

1. An embedded box-type fire and smoke sealing strip, characterized in that: It includes a mounting base, a fireproof expansion seal and a sealing strip. The mounting base is provided with a concave cavity. The fireproof expansion seal is installed in the concave cavity. Sealing strip clamping parts are provided on the cavity walls on both sides of the concave cavity close to the opening end. The two sides of the sealing strip are respectively clamped with the corresponding sealing strip clamping parts.

2. According to claim 1, the embedded box-type fireproof and smokeproof sealing strip is characterized in that: The sealing strip clamping part includes a vertically arranged support block, an upper stop piece connected to the upper end of the support block and a lower stop piece connected to the lower end of the support block, the upper stop piece, the support block and the lower stop piece together form a clamping groove, the sealing strip includes a sealing strip connecting part and a resistance strip, the two sides of the sealing strip connecting part are respectively clamped in the corresponding clamping grooves, and the sealing strip connecting part is arranged on the outer end surface of the sealing strip connecting part.

3. According to claim 2, the embedded box-type fireproof and smokeproof sealing strip is characterized in that: There are two abutment strips, which are parallel to each other and perpendicular to the outer end surface of the sealing strip connection part.

4. According to claim 3, the embedded box-type fireproof and smokeproof sealing strip is characterized in that: The sealing strip is made of silicone rubber.

5. According to claim 4, the embedded box-type fireproof and smokeproof sealing strip is characterized in that: The fireproof expansion seal is glued in the cavity.

6. The embedded fireproof and smokeproof sealing strip according to claim 5, characterized in that: The fireproof expansion seal is made of expanded graphite.

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