CN221799606U - Smoke blocking mechanism of channel fire door - Google Patents

Abstract

The utility model relates to the technical field of smoke blocking mechanisms, in particular to a smoke blocking mechanism of a channel fire door, which comprises a door frame, a fire door and a sealing mechanism, wherein the fire door is arranged on the door frame, one side of the fire door is provided with a square block, the sealing mechanism is arranged on the square block, the sealing mechanism comprises a first electric telescopic rod, a first sealing strip, a groove, a second electric telescopic rod and a second sealing strip, one end of the first electric telescopic rod is connected with the square block, the other end of the first electric telescopic rod is connected with the first sealing strip, the groove is formed in the first sealing strip, one end of the second electric telescopic rod is connected with the square block, the other end of the second electric telescopic rod is connected with the second sealing strip, and the second sealing strip is matched with the groove.

Description

A smoke blocking mechanism for a passage fire door

Technical Field

The utility model relates to the technical field of smoke blocking mechanisms, in particular to a smoke blocking mechanism for a passage fire door.

Background Art

As we all know, fire escape refers to the passage for firefighters to carry out rescue and trapped people to evacuate, such as stairwells and corridors, where fire indicator lights are installed. Fire escape plays a role that cannot be underestimated in various dangerous situations. There are usually several fire doors inside the fire escape to prevent a large fire from entering the fire escape, thereby providing people with time to escape, and fire doors are generally equipped with flame retardant mechanisms to prevent thick smoke.

However, the existing flame retardant mechanism generally blocks the gap with a sealing strip, and the existing sealing strip cannot be adjusted. When ventilation is desired without opening the fire door, due to the sealing effect of the sealing strip, air cannot pass through the fire door, thereby failing to achieve the ventilation effect.

Utility Model Content

1. Technical issues to be solved

In view of the deficiencies in the prior art, the utility model provides a smoke blocking mechanism for a passage fire door.

(II) Technical solution

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke blocking mechanism for a passage fire door, comprising a door frame, a fire door and a sealing mechanism, wherein the fire door is arranged on the door frame, a block is arranged on one side of the fire door, and the sealing mechanism is arranged on the block, and the sealing mechanism comprises a first electric telescopic rod, a first sealing strip, a groove, a second electric telescopic rod and a second sealing strip, one end of the first electric telescopic rod is connected to the block, the other end of the first electric telescopic rod is connected to the first sealing strip, the groove is opened in the first sealing strip, one end of the second electric telescopic rod is connected to the block, the other end of the second electric telescopic rod is connected to the second sealing strip, and the second sealing strip matches the groove.

In order to achieve the protective effect, the utility model is improved in that a connecting mechanism is provided on the block, and the block is connected to the protective plate through the connecting mechanism. The connecting mechanism includes a card block and a card slot. One end of the card block is arranged on the protective plate, and the card slot is opened on the block, and the other end of the card block extends into the card slot.

In order to improve the effect of the engagement, the utility model is improved in that the engagement block matches the engagement slot.

In order to improve the effect of the engagement, the utility model is improved in that the engagement block and the engagement slot are both provided with a plurality of them.

In order to facilitate operation, the utility model is improved in that a controller is provided on the door frame, the controller is electrically connected to the first electric telescopic rod, and the controller is electrically connected to the second electric telescopic rod.

In order to prevent the door frame from rusting due to long-term use, the utility model is improved in that the door frame is made of stainless steel.

(III) Beneficial effects

Compared with the prior art, the utility model provides a smoke blocking mechanism for a passage fire door, which has the following beneficial effects:

The smoke blocking mechanism of the passage fire door can achieve a sealing effect through the sealing mechanism on the fire door to prevent thick smoke from passing through the fire door when a fire occurs. When there is no fire and you do not want to open the fire door for ventilation, you can control the sealing mechanism to create gaps around the fire door, so that air can pass through the fire door to achieve ventilation. By not opening the fire door for ventilation, dust can be effectively prevented from passing through the fire door.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the shaft side structure of the utility model;

Figure 3 is a schematic diagram of the shaft side structure of the utility model;

Figure 4 is a schematic diagram of the shaft side structure of the utility model;

In the figure: 1. door frame; 2. fire door; 3. block; 4. sealing mechanism; 5. first electric telescopic rod; 6. first sealing strip; 7. second electric telescopic rod; 8. second sealing strip; 9. groove; 10. connecting mechanism; 11. card slot; 12. card block; 13. protective plate; 14. controller.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-4, a smoke-blocking mechanism for a passage fire door includes a door frame 1, a fire door 2 and a sealing mechanism 4, the fire door 2 is arranged on the door frame 1, a block 3 is provided on one side of the fire door 2, the sealing mechanism 4 is arranged on the block 3, the sealing mechanism 4 includes a first electric telescopic rod 5, a first sealing strip 6, a groove 9, a second electric telescopic rod 7 and a second sealing strip 8, one end of the first electric telescopic rod 5 is connected to the block 3, the other end of the first electric telescopic rod 5 is connected to the first sealing strip 6, the groove 9 is opened in the first sealing strip 6, one end of the second electric telescopic rod 7 is connected to the block 3, the other end of the second electric telescopic rod 7 is connected to the second sealing strip 8, and the second sealing strip 8 matches the groove 9.

When in use, first install the door frame 1 to a suitable position, and then the sealing effect can be achieved through the sealing mechanism 4 on the fire door 2 to prevent thick smoke from passing through the fire door 2 when a fire occurs. When there is no fire, when you do not want to open the fire door 2 for ventilation, first start the second electric telescopic rod 7 on the block 3, so that the second electric telescopic rod 7 drives the second sealing strip 8 to shrink to a suitable position, and then start the first electric telescopic rod 5 to drive the first sealing strip 6 to shrink, so that the groove 9 on the first sealing strip 6 merges with the second sealing strip 8, so that the sealing strip can be folded up, so that gaps appear around the fire door 2, so that air can pass through the fire door 2 to achieve the ventilation effect.

In this embodiment, a connecting mechanism 10 is provided on the block 3, and the block 3 is connected to the protective plate 13 through the connecting mechanism 10. The connecting mechanism 10 includes a card block 12 and a card slot 11. One end of the card block 12 is arranged on the protective plate 13, and the card slot 11 is opened on the block 3. The other end of the card block 12 extends into the card slot 11. By merging the card block 12 with the card slot 11, the protective plate 13 can be merged with the fire door 2. The sealing mechanism 4 can be protected by the protective plate 13 to prevent the sealing mechanism 4 from being affected by external factors and being damaged.

In order to improve the engagement effect, in this embodiment, the engagement block 12 matches the engagement slot 11 .

In order to improve the effect of the engagement, in this embodiment, a plurality of the engagement blocks 12 and the engagement slots 11 are provided.

In order to facilitate the operation of the equipment, in this embodiment, a controller 14 is provided on the door frame 1 , and the controller 14 is electrically connected to the first electric telescopic rod 5 , and the controller 14 is electrically connected to the second electric telescopic rod 7 .

The door frame 1 is prone to rust after long-term use. In order to solve this problem, in this embodiment, the door frame 1 is made of stainless steel.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A smoke blocking mechanism for a passage fire door, comprising a door frame (1), a fire door (2) and a sealing mechanism (4), characterized in that: the fire door (2) is arranged on the door frame (1), a block (3) is arranged on one side of the fire door (2), the sealing mechanism (4) is arranged on the block (3), the sealing mechanism (4) comprises a first electric telescopic rod (5), a first sealing strip, a groove (9), a second electric telescopic rod (7) and a second sealing strip (8), one end of the first electric telescopic rod (5) is connected to the block (3), the other end of the first electric telescopic rod (5) is connected to the first sealing strip (6), the groove (9) is provided in the first sealing strip (6), one end of the second electric telescopic rod (7) is connected to the block (3), the other end of the second electric telescopic rod (7) is connected to the second sealing strip (8), and the second sealing strip (8) matches the groove (9). 2. A smoke blocking mechanism for a passage fire door according to claim 1, characterized in that: a connecting mechanism (10) is provided on the block (3), and the block (3) is connected to the protective plate (13) through the connecting mechanism (10), and the connecting mechanism (10) includes a card block (12) and a card slot (11), one end of the card block (12) is arranged on the protective plate (13), the card slot (11) is opened on the block (3), and the other end of the card block (12) extends into the card slot (11). 3. A smoke blocking mechanism for a passage fire door according to claim 2, characterized in that the card block (12) matches the card slot (11). 4. A smoke blocking mechanism for a passage fire door according to claim 3, characterized in that: a plurality of the clamping blocks (12) and a plurality of the clamping slots (11) are provided. 5. A smoke blocking mechanism for a passage fire door according to claim 4, characterized in that: a controller (14) is provided on the door frame (1), the controller (14) is electrically connected to the first electric telescopic rod (5), and the controller (14) is electrically connected to the second electric telescopic rod (7). 6. A smoke blocking mechanism for a passage fire door according to claim 5, characterized in that the door frame (1) is made of stainless steel.