CN220580893U - Normally closed fireproof door structure for building - Google Patents

Abstract

The utility model discloses a normally closed fireproof door structure for a building, which comprises a door frame and a door leaf, wherein the door leaf comprises a first fireproof plate, a first fireproof outer frame and a second fireproof plate, the first fireproof plate and the second fireproof plate are respectively arranged on two sides of the first fireproof outer frame, a first cavity is formed in the first fireproof outer frame, two sides of the inner side of the first cavity are respectively provided with a slide way, a screw rod is arranged in the first cavity through two bearings, a second gear is arranged in the middle position of the screw rod, push plates are arranged at the upper end and the lower end of the screw rod, and fireproof rubber gaskets are arranged on the push plates. According to the utility model, the round handle is manually rotated, so that the first gear on the first gear shaft is driven to rotate to be meshed with the second gear, the upper end and the lower end of the screw rod in the second gear are reversely rotated, and the sliding blocks connected with the push plates at the two ends are driven to move forwards on the slide ways during the rotation of the screw rod, so that the fireproof rubber cushion on the push plate is driven to move forwards to prop against the gap, and the smoke is prevented from overflowing to cause damage to a human body.

Description

Normally closed fireproof door structure for building

Technical Field

The utility model relates to the technical field of normally-closed fireproof doors, in particular to a normally-closed fireproof door structure for a building.

Background

With the development of the age, the demands of modern people on houses are increasing, and various buildings in cities are increasing, so that the problem of fire protection is also emphasized, wherein a fireproof door at a fire-fighting passage is a door which can meet the requirements of fire resistance stability, integrity and heat insulation in a certain time, and the fireproof door is a fireproof partition with certain fire resistance and is arranged among fireproof partitions, evacuation stairways, vertical shafts and the like and is in a closed state for a long time. In the prior art, the fire door is also a big test when a fire disaster happens, the temperature of the fire door is increased along with the increase of time, people touch the door plate at the moment can be scalded, certain injury is caused to people suffering from the fire, certain gaps are reserved on the upper portion and the lower portion of the fire door when the people escape to the rear isolation area of the fire door, smoke dust can emerge from the gaps after the fire disaster happens, secondary injury can be possibly caused to people suffering from the fire, and smoke is the biggest danger when the fire disaster happens, so that the gaps on the upper portion and the lower portion of the fire door are a big problem.

Disclosure of Invention

The utility model aims to provide a normally-closed fireproof door structure for a building, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire door structure is prevented to normal close for building, includes door frame and door leaf, the inboard of door frame has two door leaves that open through four hinge connection, the door leaf includes fire-proof plate one, fire-proof frame and fire-proof plate two, just fire-proof plate one and fire-proof plate two are installed in the both sides of fire-proof frame respectively, fire-proof frame inside is equipped with cavity one, and cavity one inboard both sides all are equipped with the slide, install the lead screw through two bearing two in the cavity one, just the gear two is installed to lead screw intermediate position, the push pedal is all installed at both ends about the lead screw, just all install the fire prevention cushion on the push pedal.

Preferably, a first gear shaft is arranged at the position of the door leaf corresponding to the second gear through a first bearing, a round handle is arranged at one end of the first gear shaft, the other end of the first gear shaft extends to the inside of the first cavity and is provided with the first gear, and the first gear is meshed with the second gear.

Preferably, the middle position of the top of the fireproof outer frame is provided with a first groove, the middle position of the bottom of the inner side of the fireproof outer frame is provided with a second groove, and the push plate penetrates through the first groove and the second groove.

Preferably, the first fireproof plate is internally provided with a second cavity, the top of the inner side of the second fireproof plate is provided with a pipeline, and the bottom of the pipeline is uniformly provided with a water spraying pipe.

Preferably, the upper end and the lower end of the slideway are both provided with sliding blocks, and the sliding blocks are fixedly connected with the push plate.

Preferably, the bottom of the inner side of the door frame is provided with a threshold, and the outer side of the door frame is parallel to the top of the door leaf and provided with a smoke sensor.

Compared with the prior art, the utility model has the beneficial effects that: this normal close fire door structure for building through the pipeline inside in leading the fire hydrant the inside to the PLASTIC LAMINATED, through the spray pipe blowout, the outlet pipe of piled up flowing water rethread bottom one side flows, if the conflagration breaks out, can reduce the temperature of preventing fire door, prevent to scald the people, after the personnel flee to prevent fire door, drive gear one and gear two perpendicular meshing through manual rotation circular handle, make the reverse rotation in lead screw both ends, thereby the push pedal at both ends about the lead screw passes through the slider and moves forward on the slide, make the fire prevention cushion on the push pedal remove to door leaf top and bottom simultaneously, remove to fire prevention frame's recess one and recess two departments, support the door leaf on with the gap of door frame, also support the gap of door leaf and threshold simultaneously, reach the effect of blocking the cigarette to a certain extent, thereby reduce smog invasion and cause the damage to the human body.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the fire-resistant outer frame of the present utility model;

FIG. 3 is a schematic view of a vertical meshing of gear one and gear two of the present utility model;

FIG. 4 is a schematic view of a door leaf according to the present utility model;

in the figure: 1. a door frame; 2. a door leaf; 3. a circular handle; 4. a hinge; 5. a smoke sensor; 6. a first bearing; 7. a screw rod; 8. a second gear; 9. a first gear; 10. a first gear shaft; 11. a push plate; 12. a fireproof rubber cushion; 13. a fireproof plate I; 14. a pipe; 15. a water spray pipe; 16. a first cavity; 17. a fireproof outer frame; 18. a fireproof plate II; 19. a groove I; 20. a second groove; 21. a threshold; 22. a slideway; 23. a cavity II; 24. a second bearing; 25. a sliding block.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a normal close fire door structure for building, including door frame 1 and door leaf 2, the inboard of door frame 1 is connected with two door leaves 2 that open through four hinges 4, door threshold 21 is installed to the inboard bottom of door frame 1, and door frame 1 outside is on a parallel with the position at door leaf 2 tops and install smoke transducer 5, door leaf 2 includes fire-proof plate one 13, fire-proof frame 17 and fire-proof plate two 18, inside cavity two 23 that are equipped with of fire-proof plate one 13, and pipeline 14 is installed at the inboard top of fire-proof plate two 18, and the spray pipe 15 is evenly installed to pipeline 14 bottom, make the water of fire hydrant can flow into pipeline 14 through the inlet pipe, spout through the even spray pipe 15 on the pipeline 14, the outlet pipe of rethread fire-proof plate two 18 bottoms discharges, play the effect of cooling to door leaf 2 to a certain extent, be scalded when preventing someone to touch the door leaf.

The first fireproof plate 13 and the second fireproof plate 18 are respectively arranged on two sides of the fireproof outer frame 17, a first groove 19 is arranged in the middle position of the top of the fireproof outer frame 17, a second groove 20 is arranged in the middle position of the bottom of the inner side of the fireproof outer frame 17, a push plate 11 penetrates through the first groove 19 and the second groove 20, a first cavity 16 is arranged in the fireproof outer frame 17, slide ways 22 are arranged on two sides of the inner side of the first cavity 16, sliding blocks 25 are arranged on the upper end and the lower end of the slide ways 22, the sliding blocks 25 are fixedly connected with the push plate 11, a screw rod 7 is arranged in the first cavity 16 through two bearings 24, a gear II 8 is arranged in the middle position of the screw rod 7, a gear shaft I10 is arranged at the position of the door leaf 2 corresponding to the gear II 8 through a bearing I6, a round handle 3 is arranged at one end of the gear shaft I10, the other end of gear shaft one 10 extends to the inside of cavity one 16 and installs gear one 9, gear one 9 and gear two 8 intermeshing, push pedal 11 is all installed at both ends about the lead screw 7, and all install fire prevention cushion 12 on the push pedal 11 for circular handle 3 on the manual rotation door leaf 2, the rotation that makes circular handle 3 drive gear one 9 and intermeshing gear two 8 on same gear shaft one 10 simultaneously rotate, gear two 8 drive fire prevention cushion 12 on the lead screw 7 and reciprocate both ends, support the gap between door leaf 2 and door frame 1 and threshold 21, prevent smog to emit from the place in gap to be absorbed by stranded personnel, the harm of smog to the human body has been reduced to a certain extent.

When the fire-fighting device is used, when a fire disaster happens, water in the fire hydrant flows into the pipeline 14 inside the fireproof plate 13 inside the door leaf 2 from the water inlet pipe, the water spray pipe 15 is evenly arranged on the pipeline 14 to spray out, the door leaf 2 is cooled, people are prevented from being scalded when contacting the fireproof door, the sprayed water flows into the water outlet pipe at the bottom of the fireproof plate 13 and flows into the water outlet pipe, after people escape to a safe area behind the fireproof door, the round handle 3 is manually rotated on the door leaf 2, the round handle 3 is rotated to drive the gear 9 on the same gear shaft 10 to rotate, the gear 9 drives the gear 8 which is vertically meshed with the gear 9 to rotate, the gear 8 drives two ends of the screw rod 7 inside the gear to reversely rotate, so that the push plate 11 on the screw rod 7 moves forwards through the slide block 25 on the slide way 22, meanwhile, the fireproof rubber pad 12 on the push plate 11 also moves forwards until the fireproof rubber pad 12 abuts against the gap between the door leaf 2 and the door frame 21, the round handle 3 is stopped rotating, and the smoke is prevented from being sucked from the gap to a certain extent, and the people in the safe area are injured.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A normally closed fire door structure for building, its characterized in that: including door frame (1) and door leaf (2), the inboard of door frame (1) is connected with two door leaves (2) that open to the side through four hinges (4), door leaf (2) are including fire-proof plate one (13), fire-proof frame (17) and fire-proof plate two (18), just fire-proof plate one (13) and fire-proof plate two (18) install respectively in the both sides of fire-proof frame (17), fire-proof frame (17) inside is equipped with cavity one (16), and cavity one (16) inboard both sides all are equipped with slide (22), install lead screw (7) through two bearing two (24) in cavity one (16), just lead screw (7) intermediate position installs gear two (8), push pedal (11) are all installed at both ends about lead screw (7), just all install fire-proof cushion (12) on push pedal (11).

2. A normally closed fire door structure for construction according to claim 1, wherein: the door leaf (2) is provided with a first gear shaft (10) through a first bearing (6) at the position corresponding to the second gear (8), one end of the first gear shaft (10) is provided with a circular handle (3), the other end of the first gear shaft (10) extends to the inside of the first cavity (16) and is provided with a first gear (9), and the first gear (9) is meshed with the second gear (8).

3. A normally closed fire door structure for construction according to claim 1, wherein: the fireproof device is characterized in that a first groove (19) is formed in the middle position of the top of the fireproof outer frame (17), a second groove (20) is formed in the middle position of the bottom of the inner side of the fireproof outer frame (17), and the push plate (11) penetrates through the first groove (19) and the second groove (20).

4. A normally closed fire door structure for construction according to claim 1, wherein: the fire-proof plate I (13) is internally provided with a cavity II (23), the top of the inner side of the fire-proof plate II (18) is provided with a pipeline (14), and the bottom of the pipeline (14) is uniformly provided with a water spraying pipe (15).

5. A normally closed fire door structure for construction according to claim 1, wherein: the upper end and the lower end of the slideway (22) are both provided with sliding blocks (25), and the sliding blocks (25) are fixedly connected with the push plate (11).

6. A normally closed fire door structure for construction according to claim 1, wherein: the bottom of the inner side of the door frame (1) is provided with a threshold (21), and the outer side of the door frame (1) is parallel to the top of the door leaf (2) and provided with a smoke sensor (5).