Heat-resistant fireproof door with ventilation function

Abstract

The utility model provides a heat-resistant fireproof door with a ventilation function, and relates to the field of heat-resistant fireproof doors, the heat-resistant fireproof door comprises a fireproof door body and a smoke detector, the smoke detector is mounted on the surface of the fireproof door body, a ventilation opening is formed in the middle of the fireproof door body, and a blocking convex plate is embedded and tightly attached in the ventilation opening. The front side of the blocking protruding plate is tightly attached to the surface of the fireproof door body through a fireproof cover plate, a balance weight pressing plate and an inner pressing plate are symmetrically pressed on the front surface of the fireproof cover plate, the upper end of the balance weight pressing plate is connected with the fireproof door body through a connecting sliding block, and a telescopic hanging rod is arranged at the upper end of the fireproof cover plate. The telescopic hanging rod is fixed to the fireproof door body through a fixing block, and the rear end of the telescopic hanging rod is connected with an electric push rod. The fireproof door solves the problem that in the prior art, light can penetrate through fireproof glass in a fireproof door, air circulation is difficult, and the fireproof door is needed during daily ventilation, so that the fireproof smoke isolation effect is affected.

Description

Technical Field

[0001] The utility model relates to the field of heat-resistant fire doors, and particularly to a heat-resistant fire door with a ventilation function. Background Art

[0002] A fire door refers to a door that can meet the requirements of fire resistance, integrity, and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc. After retrieval, in the prior art (application number: CN202120643215.0), it is recorded that "for this glass heat-insulating fire door, the outer baffle one is fixedly connected to the outer walls of the left and right fire doors, the outer baffle two is movably connected inside the outer baffle one, and both the outer baffle one and the outer baffle two are made of heat-resistant deformation metal. Usually, the outer baffle two can be closed without affecting the aesthetics of the glass light transmission. If a fire occurs, the use of heat-resistant deformation metal can effectively isolate the high temperature of the fire." However, in the prior art, the fireproof glass in the fire door can penetrate light and it is difficult for air to circulate, resulting in the problem that the fire door affects the fire prevention and smoke isolation effect during daily ventilation. Content of the Utility Model

[0003] To overcome the defects existing in the prior art, a heat-resistant fire door with a ventilation function is provided herein to solve the problem that in the prior art, the fireproof glass in the fire door can penetrate light and it is difficult for air to circulate, resulting in the fire door affecting the fire prevention and smoke isolation effect during daily ventilation.

[0004] To achieve the above object, a heat-resistant fire door with a ventilation function is provided, including: a fire door body and a smoke detector, wherein the smoke detector is installed on the surface of the fire door body.

[0005] A ventilation opening is provided in the middle of the fire door body, and a sealing convex plate is embedded and closely attached in the ventilation opening. The front side of the sealing convex plate is closely attached to the surface of the fire door body through a fireproof cover plate. A counterweight pressing plate and an inner pressing plate are symmetrically pressed on the front surface of the fireproof cover plate. The upper end of the counterweight pressing plate is connected to the fire door body through a connecting slider. A telescopic hanging rod is provided at the upper end of the fireproof cover plate, and the telescopic hanging rod is fixed to the fire door body through a fixing block. The rear end of the telescopic hanging rod is connected to an electric push rod.

[0006] Furthermore, fireproof structures are filled in the metal plates of both the fire door body and the sealing convex plate. An articulated block is welded on the front surface of the fire door body; and the articulated block is located at the upper end of the ventilation opening.

[0007] Furthermore, the fireproof structure is composed of a first fireproof board, a heat-resistant partition board, and a second fireproof board. A heat-resistant partition board made of aluminosilicate ceramic fiber material is glued between the first fireproof board and the second fireproof board.

[0008] Furthermore, the inner side of the upper end of the fireproof cover plate is connected to the hinge block through a connecting shaft, and a handle is installed on the front surface of the fireproof cover plate; and the handle is hung on the surface of the telescopic hanging rod.

[0009] Furthermore, a small controller is fixed on the upper end of the smoke detector; and the small controller wire is connected to an electric push rod, and the surface of the fire door body is slidably connected to the connecting slider through a sliding groove.

[0010] Furthermore, a rectangular sealing groove is provided at the outer end of the ventilation opening, and a sealing strip is bonded to the rear side of the fireproof cover plate; and the sealing strip is pressed correspondingly to the sealing groove.

[0011] Furthermore, a telescopic groove is provided on the inner side of the fixed block; and the rear end of the telescopic hanging rod is limitedly connected in the telescopic groove, and an electric push rod is embedded and fixed inside the fixed block.

[0012] The beneficial effect of the utility model lies in that the heat-resistant fire door with ventilation function of the utility model utilizes rotating fire cover plates to open the ventilation holes on the surface of the heat-resistant fire door, so that the fire cover plates are placed horizontally through the extended telescopic hanging rod, thereby realizing the ventilation function of the heat-resistant fire door, and the heat-resistant fire door is kept in a closed state during ventilation. The telescopic hanging rod retracts when encountering smoke, and the fire cover plates automatically fall down to cover the ventilation holes. At the same time, the counterweight pressure plate and the inner pressure plate slide down to press the fire cover plates and the ventilation holes tightly, thereby conveniently and quickly blocking the ventilation holes on the surface of the heat-resistant fire door, preventing smoke or fire from spreading into the ventilation holes, and ensuring the normal fire and smoke isolation effect of the heat-resistant fire door. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic front view of the structure of the heat-resistant and fire-proof door vent pipe wall according to an embodiment of the utility model.

[0014] Figure 2 This is a front view structural schematic diagram of the heat-resistant fireproof door embodiment of the utility model with the vent opening opened.

[0015] Figure 3 It is a schematic diagram of the side cross-sectional connection structure of the fireproof cover plate and the counterweight pressure plate according to an embodiment of the utility model.

[0016] Figure 4 The figure is a schematic side cross-sectional structural diagram of the telescopic hanging rod according to an embodiment of the utility model.

[0017] In the figure: 1, fire door body; 11, chute; 12, hinge block; 13, ventilation opening; 14, sealing groove; 2, smoke detector; 21, small controller; 3, fireproof cover plate; 31, handle; 32, plugging convex plate; 33, connecting shaft; 34, sealing strip; 4, telescopic hanging rod; 41, fixing block; 42, electric push rod; 43, telescopic groove; 5, counterweight pressing plate; 51, inner pressing plate; 52, connecting slider; 6, fireproof structure; 61, first fireproof board; 62, heat-resistant partition board; 63, second fireproof board. Detailed implementation manner

[0018] Refer to Figures 1 to 4 As shown in the figure, the present utility model provides a heat-resistant fire door with a ventilation function, including: a fire door body 1 and a smoke detector 2. The smoke detector 2 is installed on the surface of the fire door body 1.

[0019] A ventilation opening 13 is provided in the middle of the fire door body 1. A plugging convex plate 32 is embedded and closely attached in the ventilation opening 13. The front side of the plugging convex plate 32 is closely attached to the surface of the fire door body 1 through a fireproof cover plate 3. A counterweight pressing plate 5 and an inner pressing plate 51 are symmetrically pressed on the front surface of the fireproof cover plate 3. The upper end of the counterweight pressing plate 5 is connected to the fire door body 1 through a connecting slider 52. A telescopic hanging rod 4 is provided at the upper end of the fireproof cover plate 3. The telescopic hanging rod 4 is fixed to the fire door body 1 through a fixing block 41. The rear end of the telescopic hanging rod 4 is connected to an electric push rod 42.

[0020] Working principle: During daily ventilation, the fireproof cover plate 3 is rotated upward so that the handle 31 on the surface of the fireproof cover plate 3 is hooked to the extended telescopic hanging rod 4. At this time, the ventilation opening 13 of the fire door body 1 is in an open ventilation state. When the smoke detector 2 detects smoke, the small controller 21 controls the electric push rod 42 to pull the telescopic hanging rod 4 back into the fixing block 41. After the fireproof cover plate 3 lacks the hanging support of the telescopic hanging rod 4, it falls and covers the surface of the ventilation opening 13. When the fireproof cover plate 3 falls, the counterweight pressing plate 5 and the inner pressing plate 51 also slide down. The sliding counterweight pressing plate 5 and inner pressing plate 51 press the inner fireproof cover plate 3 tightly at the ventilation opening 13, thereby plugging the ventilation opening 13 and preventing the spread of fire and smoke.

[0021] In this embodiment, a fireproof structure 6 is filled in the metal plates of both the fire door body 1 and the plugging convex plate 32. An articulated block 12 is welded on the front surface of the fire door body 1; and the articulated block 12 is located at the upper end of the ventilation opening 13.

[0022] As a preferred implementation manner, the fireproof structure 6 facilitates the fire door body 1 and the plugging convex plate 32 to play the roles of fire prevention and smoke isolation. The ventilation opening 13 facilitates the air circulation on both sides of the door during normal times without fire.

[0023] In this embodiment, the fireproof structure 6 is composed of a first fireproof board 61, a heat-resistant partition board 62, and a second fireproof board 63. A heat-resistant partition board 62 made of aluminosilicate ceramic fiber is glued between the first fireproof board 61 and the second fireproof board 63.

[0024] As a preferred embodiment, the heat-resistant partition board 62 made of aluminosilicate ceramic fiber has excellent heat resistance, enhances the heat resistance of the fireproof door body 1, and reduces the heat conduction of the fireproof door body 1.

[0025] In this embodiment, the inner side of the upper end of the fireproof cover plate 3 is connected to the hinge block 12 through a connecting shaft 33, and a handle 31 is installed on the front surface of the fireproof cover plate 3; and the handle 31 is hung on the surface of the telescopic hanging rod 4.

[0026] As a preferred embodiment, the hinged fireproof cover plate 3 is convenient to rotate, facilitating the covering of the fireproof cover plate 3 on the ventilation opening 13. The fireproof cover plate 3 is hung on the extended telescopic hanging rod 4 through the handle 31.

[0027] In this embodiment, a small controller 21 is fixed to the upper end of the smoke detector 2; and the small controller 21 is electrically connected to the electric push rod 42, and the surface of the fireproof door body 1 is slidably connected to the connecting slider 52 through a chute 11.

[0028] As a preferred embodiment, the small controller 21 receives the detection signal of the smoke detector 2, thereby controlling the electric push rod 42 to contract, and automatically controlling the fireproof cover plate 3 to fall.

[0029] In this embodiment, a rectangular sealing groove 14 is provided at the outer end of the ventilation opening 13, and a sealing strip 34 is adhered to the rear side surface of the fireproof cover plate 3; and the sealing strip 34 is correspondingly pressed against the sealing groove 14.

[0030] As a preferred embodiment, the fireproof cover plate 3 is pressed tightly against the sealing groove 14 through the sealing strip 34, preventing smoke from entering the other side of the fireproof door through the ventilation opening 13.

[0031] In this embodiment, a telescopic groove 43 is provided inside the fixing block 41; and the rear end of the telescopic hanging rod 4 is limited and connected in the telescopic groove 43, and an electric push rod 42 is fixedly embedded inside the fixing block 41.

[0032] As a preferred embodiment, the telescopic groove 43 facilitates the electric push rod 42 to push the telescopic hanging rod 4 to move inside the groove. When smoke is detected, the electric push rod 42 pulls the telescopic hanging rod 4 to retract, causing the fireproof cover plate 3 to fall freely.

[0033] The heat-resistant and fire-proof door with a ventilation function of the present utility model can effectively solve the problem that the fire-proof door affects the fire-proof and smoke-proof effect during daily ventilation, realize the ventilation function of the heat-resistant and fire-proof door, facilitate the heat-resistant and fire-proof door to remain in a closed state during ventilation, conveniently and quickly block the ventilation openings on the surface of the heat-resistant and fire-proof door, prevent smoke or fire from spreading into through the ventilation openings, ensure the normal fire-proof and smoke-proof effect of the heat-resistant and fire-proof door, and is applicable to the heat-resistant and fire-proof door with a ventilation function.

Claims

1. A heat-resistant fire door with ventilation function, comprising: A fireproof door body (1) and a smoke detector (2), wherein the smoke detector (2) is mounted on the surface of the fireproof door body (1), and is characterized in that: A ventilation opening (13) is provided in the middle of the fireproof door body (1), and a sealing convex plate (32) is embedded in the ventilation opening (13) and is in close contact with the surface of the fireproof door body (1) through a fireproof cover plate (3). A counterweight pressure plate (5) and an inner pressure plate (51) are symmetrically pressed on the front surface of the fireproof cover plate (3). The upper end of the counterweight pressure plate (5) is connected to the fireproof door body (1) through a connecting slider (52). A telescopic hanging rod (4) is provided at the upper end of the fireproof cover plate (3). The telescopic hanging rod (4) is fixed to the fireproof door body (1) through a fixing block (41), and the rear end of the telescopic hanging rod (4) is connected to an electric push rod (42).

2. A heat-resistant fireproof door with ventilation function according to claim 1, characterized in that: The metal plates of the fireproof door body (1) and the sealing convex plate (32) are filled with fireproof structures (6), and a hinge block (12) is welded on the front surface of the fireproof door body (1); and the hinge block (12) is located at the upper end of the ventilation opening (13).

3. A heat-resistant fireproof door with ventilation function according to claim 2, characterized in that: The fireproof structure (6) is composed of a first fireproof board (61), a heat-resistant partition board (62) and a second fireproof board (63), wherein the heat-resistant partition board (62) made of aluminum silicate ceramic fiber is glued between the first fireproof board (61) and the second fireproof board (63).

4. The heat-resistant fireproof door with ventilation function according to claim 1, characterized in that: The inner side of the upper end of the fireproof cover plate (3) is connected to the hinge block (12) via a connecting shaft (33), and a handle (31) is installed on the front surface of the fireproof cover plate (3); and the handle (31) is hung on the surface of the telescopic hanging rod (4).

5. The heat-resistant fireproof door with ventilation function according to claim 1, characterized in that: A small controller (21) is fixed on the upper end of the smoke detector (2); and the small controller (21) is connected to an electric push rod (42) via an electric wire, and the surface of the fireproof door body (1) is slidably connected to a connecting slide block (52) via a slide groove (11).

6. The heat-resistant fireproof door with ventilation function according to claim 1, characterized in that: A rectangular sealing groove (14) is provided at the outer end of the ventilation opening (13), and a sealing strip (34) is bonded to the rear side of the fireproof cover plate (3); and the sealing strip (34) is pressed correspondingly to the sealing groove (14).

7. The heat-resistant fireproof door with ventilation function according to claim 1, characterized in that: A telescopic groove (43) is provided inside the fixed block (41); and the rear end of the telescopic hanging rod (4) is limit-connected in the telescopic groove (43); and an electric push rod (42) is embedded and fixed inside the fixed block (41).

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