External smoke-proof sealing mechanism

Abstract

The utility model relates to an external smoke-proof sealing mechanism which comprises a sealing strip main body and a fixing piece, the fixing piece is provided with a sealing strip connecting part and a mounting part, one side of the sealing strip main body is provided with a clamping part, the other side of the sealing strip main body is provided with an abutting strip, the clamping part is clamped on the sealing strip connecting part, and a mounting hole is formed in the mounting part. The fixing pieces penetrate through the installation holes through screws and fixedly install the installation holes on the door frame, and the installation part is covered with a shielding plate. According to the external smoke-proof sealing mechanism, the mode that the external smoke-proof sealing mechanism is externally installed on the periphery of a door frame and fixedly installed through screws is adopted, so that the whole installation process is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of doors, in particular to an external smoke-proof sealing mechanism. Background Art

[0002] According to relevant statistics, more than 85% of deaths in fires are caused by smoke, most of which are caused by inhalation of smoke and toxic gases and then coma. Therefore, it is very important that the door body should have smoke-proof capabilities. However, most of the sealing strips commonly used on doors on the market are too complex in structure and inconvenient to install. It is difficult to achieve the effect of sealing and smoke-proofing in the face of a fire, so it is not conducive to people's selection. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and to provide an external smoke-proof sealing mechanism which is easy to install and has a good sealing effect.

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

[0005] An external smoke-proof sealing mechanism comprises a sealing strip main body and a fixing piece, wherein the fixing piece is provided with a sealing strip connecting portion and a mounting portion, a clamping portion is provided on one side of the sealing strip main body, and an interference strip is provided on the other side of the sealing strip main body, the clamping portion is clamped on the sealing strip connecting portion, and a mounting hole is provided on the mounting portion, the fixing piece is screwed through the mounting hole and fixedly mounted on the door frame, and a shielding plate is provided on the mounting portion.

[0006] Furthermore, the clamping portion includes a T-shaped clamping block and a barbed hook-shaped clamping block, and the sealing strip connecting portion includes a concave clamping groove and a clamping groove, and protrusions are provided on the groove walls on both sides of the concave clamping groove, and the T-shaped clamping block is clamped in the concave clamping groove, and the hook portion of the barbed hook-shaped clamping block is clamped in the clamping groove.

[0007] Furthermore, the mounting portion includes a fitting surface that fits with the door frame and two supporting surfaces located on both sides of the fitting surface and perpendicular to the fitting surface, and stop blocks are provided on the two supporting surfaces. Stop portions are provided on both sides of the shielding plate, and the shielding plate is clamped in a concave space enclosed by the two supporting surfaces and the fitting surface, and a stop fit is formed by the stop portions and the stop blocks.

[0008] Furthermore, the sealing strip body is a circular hollow structure.

[0009] Furthermore, the card slot is arranged on the surface where the fixing piece is in contact with the door frame, and the concave card slot is arranged on the side surface of the fixing piece.

[0010] Furthermore, the mounting hole is arranged on the fitting surface.

[0011] Furthermore, the sealing strip body is made of silicone rubber material, and the fixing piece is made of aluminum alloy material.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Firstly, the utility model provides an external smoke-proof sealing mechanism, in which the fixing piece connecting the sealing strip body is directly separated from the door frame. When the sealing strip needs to be fixed on the door frame, the fixing piece can be directly fixed on the door frame by screwing through the mounting hole, which is very convenient. In addition, the structural design in which the split fixing piece and the door frame are separated makes it very convenient to install the sealing strip body on the fixing piece or remove it.

[0014] Secondly, the sealing strip body of the utility model is made of silicone rubber, which has good heat resistance and has a good insulating and sealing effect on isolating medium-temperature smoke. The sealing strip body made of silicone rubber can work for a long time at 180°C, and can withstand several weeks or longer at slightly higher than 200°C, and can instantly withstand high temperatures above 300°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an external smoke-proof sealing mechanism of the utility model.

[0016] Figure 2 It is a top view structural view of an external smoke-proof sealing mechanism of the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the exploded structure of an external smoke-proof sealing mechanism. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0019] like Figures 1 to 3As shown, an external smoke-proof sealing mechanism provided in this embodiment includes a sealing strip body 1 and a fixing member 2. Specifically, the sealing strip body 1 is a circular hollow structure. A sealing strip connecting portion 21 and a mounting portion 22 are provided on the fixing member 2, and the sealing strip connecting portion 21 and the mounting portion 22 are connected as a whole. And the fixing member 2 is made of aluminum alloy material, which makes the door frame sealing strip more sturdy. Specifically, the fixing member 2 passes through the mounting hole 23 by screws and is externally installed around the door frame, and the whole installation process is very convenient. A clamping portion 11 is provided on one side of the sealing strip body 1, and a resistance strip 12 is provided on the other side of the sealing strip body 1, and the clamping portion 11 is clamped on the sealing strip connecting portion 21. A mounting hole 23 is provided on the mounting portion 22, and a shielding plate 24 is provided on the upper cover of the mounting portion 22, and the shielding plate 24 is made of silicone rubber. Specifically, the abutment strip 12, the sealing strip body 1 and the clamping portion 11 are an integrally formed structure, and when the door is closed, the abutment strip 12 abuts against the surface of the door leaf, which can achieve a sealing and isolating effect.

[0020] As described above, the clamping portion 11 includes a T-shaped clamping block 111 and a barbed clamping block 112. The sealing strip connecting portion 21 includes a concave clamping groove 211 and a clamping groove 212. Both sides of the concave clamping groove 211 are provided with protrusions 213. The T-shaped clamping block 111 is clamped in the concave clamping groove 211, and the hook portion of the barbed clamping block 112 is clamped in the clamping groove 212.

[0021] As described above, the mounting portion 22 includes a fitting surface 221 fitted with the door frame and two supporting surfaces 222 located on both sides of the fitting surface 221 and perpendicular to the fitting surface 221. Stop blocks 223 are provided on the two supporting surfaces 222, and stop portions 241 are provided on both sides of the shielding plate 24. The shielding plate 24 is clamped in the concave space enclosed by the two supporting surfaces 222 and the fitting surface 221, and a stop fit is formed by the stop portion 241 and the stop block 223. Specifically, the mounting hole 23 is provided on the fitting surface 221. After the fixing member 2 is fixed to the door frame by screws passing through the mounting hole 23, the shielding plate 24 can be clamped in the concave space enclosed by the two supporting surfaces 222 and the fitting surface 221, so that the appearance of the entire sealing strip is more beautiful.

[0022] As described above, the clamping groove 212 is arranged on the surface of the fixing member 2 which is in contact with the door frame, and the concave clamping groove 211 is arranged on the side surface of the fixing member 2 .

[0023] As mentioned above, the sealing strip body 1 is made of silicone rubber material. Specifically, the sealing strip body 1 made of silicone rubber material has good heat resistance, has a good insulating and sealing effect on isolating medium-temperature smoke, and can work for a long time at 180°C, and can withstand several weeks or longer at a temperature slightly higher than 200°C, and can instantly withstand high temperatures above 300°C. When in use, the sealing strip body 1 made of silicone rubber material has anti-aging and corrosion resistance, which makes it have a longer service life, and during use, it has the advantages of small compression deformation, strong rebound ability, good non-sticky surface, and good air permeability.

[0024] In summary, when the sealing strip body 1 is installed on the fixing member 2, the T-shaped clamping block 111 and the barb-shaped clamping block 112 are aligned with the concave clamping groove 211 and the clamping groove 212 respectively, and then the T-shaped clamping block 111 and the barb-shaped clamping block 112 are respectively inserted into the concave clamping groove 211 and the clamping groove 212 by plugging. This connection method makes the sealing strip body 1 very convenient when installing or removing it.

[0025] 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 external smoke-proof sealing mechanism, characterized in that: It includes a sealing strip body and a fixing piece, the fixing piece is provided with a sealing strip connecting part and a mounting part, a clamping part is provided on one side of the sealing strip body, and a resistance strip is provided on the other side of the sealing strip body, the clamping part is clamped on the sealing strip connecting part, and a mounting hole is provided on the mounting part, the fixing piece is screwed through the mounting hole and fixedly installed on the door frame, and a shielding plate is provided on the mounting part.

2. The external smoke-proof sealing mechanism according to claim 1, characterized in that: The clamping portion includes a T-shaped clamping block and a barbed hook-shaped clamping block, and the sealing strip connecting portion includes a concave clamping groove and a clamping groove. Both side groove walls of the concave clamping groove are provided with protrusions, the T-shaped clamping block is clamped in the concave clamping groove, and the hook portion of the barbed hook-shaped clamping block is clamped in the clamping groove.

3. The external smoke-proof sealing mechanism according to claim 2, characterized in that: The mounting portion includes a fitting surface that fits the door frame and two supporting surfaces located on both sides of the fitting surface and perpendicular to the fitting surface, and stop blocks are provided on the two supporting surfaces. Stop portions are provided on both sides of the shielding plate, and the shielding plate is clamped in a concave space enclosed by the two supporting surfaces and the fitting surface, and a stop fit is formed by the stop portions and the stop blocks.

4. An external smoke-proof sealing mechanism according to claim 1, 2 or 3, characterized in that: The sealing strip body is a circular hollow structure.

5. The external smoke-proof sealing mechanism according to claim 2, characterized in that: The clamping groove is arranged on the surface where the fixing piece is in contact with the door frame, and the concave clamping groove is arranged on the side surface of the fixing piece.

6. The external smoke-proof sealing mechanism according to claim 3, characterized in that: The mounting hole is arranged on the fitting surface.

7. The external smoke-proof sealing mechanism according to claim 1, characterized in that: The sealing strip body is made of silicone rubber material, and the fixing piece is made of aluminum alloy material.

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