CN215485709U

CN215485709U - Smoke-isolating airtight steel fireproof door

Info

Publication number: CN215485709U
Application number: CN202121432818.2U
Authority: CN
Inventors: 林浩森
Original assignee: Guangzhou Rigao Industry And Trade Co ltd
Current assignee: Guangzhou Rigao Industry And Trade Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-01-11
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a smoke-isolating airtight steel fireproof door which comprises a door frame, wherein a first door body and a second door body are rotatably connected in the door frame through hinges, four fireproof frames which are uniformly distributed are welded outside the first door body and the second door body, and a plurality of reset springs which are uniformly distributed are welded on one side of the inner wall of each fireproof frame. The utility model overcomes the defects of the prior art, can cover and shelter the gaps among the door body, the door frame and the ground through the arrangement of the rubber sealing block and the rubber sealing strip, so as to seal the gaps among the door body, the door frame and the ground, improve the smoke insulation and sealing effects of the steel fireproof door, effectively prevent the diffusion of smoke, facilitate the safe evacuation of personnel, ensure that the rubber sealing block can be always attached to the gaps under the elasticity of the reset spring, prevent the original gaps of the door body and the door frame from being exposed due to the abrasion of the rubber sealing block caused by long-time door opening and closing, and improve the practicability of the steel fireproof door.

Description

Smoke-isolating airtight steel fireproof door

Technical Field

The utility model relates to the technical field of fireproof doors, in particular to a smoke-isolating airtight steel fireproof door.

Background

The fire department economic department designates and approves the laboratory, the fire door fire-proof test method tests to be qualified, and the fire door is called as the fire door to obtain the fire door which is approved by the economic department standard inspection bureau and verified and registered by the certificate and the authorized identifier. The door is made of steel materials, such as a door frame, a door leaf framework and a door leaf panel, if the door leaf is filled with materials, fireproof heat-insulating materials which are nontoxic and harmless to a human body are filled in the door leaf, and the door which is formed by matching fireproof hardware fittings and has the designated fireproof performance is called a steel fireproof door.

But the door body of present fire door is prevented to steel, still can have certain clearance between door frame and the ground, these clearances can cause the diffusion of partial flue gas, influence personnel's safe evacuation, and fire door is prevented to steel and install mostly in the passageway, people are for passing the convenience, often can advance to open to preventing fire door, and some fire door is prevented to steel is prevented to fire door and is equipped with automatic door closing mechanism, can close the door automatically when the conflagration that takes place, prevent the intensity of a fire from stretching, but behind these automatic door closing of mechanism, personnel are very difficult to open this door body from the fire point the inside again, influence the evacuation and the escape of fire point personnel, and people open the door body that is equipped with automatic door closing mechanism by force this moment, can construct the damage to automatic door closing mechanism, make fire door can's unable automation of closing, so can't satisfy the prior art needs.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a smoke-isolating closed steel fireproof door, which overcomes the defects of the prior art and aims to solve the problems that the door body, the door frame and the ground cannot be sealed and the automatic door closing mechanism of the fireproof door cannot be protected by time delay.

In order to achieve the purpose, the utility model provides the following technical scheme: a smoke-isolating airtight steel fireproof door comprises a door frame, wherein a first door body and a second door body are connected in the door frame in a rotating mode through hinges, four fireproof frames which are uniformly distributed are welded outside the first door body and the second door body, a plurality of reset springs which are uniformly distributed are welded on one side of the inner wall of each fireproof frame, a rubber sealing block is bonded between one ends of the reset springs, the outer walls of the door frame, the first door body and the second door body are all contacted with one side of the rubber sealing block, a mounting frame is fixedly installed at the top of one side of the door frame through bolts, a motor is fixedly installed on one side of the inner wall of the mounting frame through bolts, a winding rod is welded at the output end of the motor, two fireproof ropes which are symmetrically distributed are wound outside the winding rod, the bottom ends of the two fireproof ropes are respectively wound outside a fixed rod welded at the tops of the outer walls of the first door body and the second door body, a time delay switch is fixedly installed in the mounting frame through bolts, two smoke detectors which are symmetrically distributed are fixedly arranged on the outer wall of the door frame through bolts.

As a preferred technical solution of the present invention, the motor is electrically connected to a delay switch, and the delay switch is electrically connected to the smoke detector.

As a preferred technical solution of the present invention, the smoke detector is electrically connected to an external power source.

As a preferable technical scheme of the utility model, a rotary groove is formed in the inner wall of one side, away from the motor, of the mounting frame, and one end of the winding rod is rotatably sleeved in the rotary groove.

As a preferred technical scheme of the utility model, four partition plates which are uniformly distributed are fixedly sleeved on the outer wall of the winding rod, and the partition plates are in a circular ring shape.

According to a preferable technical scheme of the utility model, the top end of the fireproof rope is positioned between the two partition plates, and rubber sealing strips are inlaid at the top and the bottom of the outer walls of the first door body and the second door body.

As a preferable technical scheme of the utility model, the fireproof frame is in an L shape, and the first door body is in contact with the second door body.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, through the arrangement of the rubber sealing block and the rubber sealing strip, gaps among the door body, the door frame and the ground can be covered and shielded, so that the gaps among the door body, the door frame and the ground are sealed, the smoke insulation and sealing effects of the steel fireproof door are improved, the diffusion of smoke can be effectively prevented, the safety evacuation of personnel is facilitated, the rubber sealing block can be always attached to the gap under the elastic force of the reset spring, the original gap between the door body and the door frame is prevented from being exposed due to the abrasion of the rubber sealing block caused by long-time door opening and closing, and the practicability of the steel fireproof door is improved.

(2) When the smoke detector detects smoke in a fire disaster, the motor is started to rotate the winding rod after the time delay of the time delay switch, the two door bodies are driven to move by winding the fireproof rope, so that the automatic door closing of a fireproof door is realized, at the moment, when people in the fire disaster are evacuated, the door bodies are forcibly opened to only drive the winding rod to rotate, the automatic door opening mechanism cannot be influenced and damaged, the smoke detector and the time delay switch are started again to automatically close the door after people are evacuated, so that the smoke diffusion and the fire spread are prevented, the evacuation time of people is provided by the time delay of the time delay switch on the whole, and the safe evacuation of people in the fire disaster is ensured.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a rear elevational view of the overall construction of the present invention;

FIG. 3 is a top sectional view of the overall structure of the present invention;

FIG. 4 is an enlarged view of the structure A of FIG. 3 according to the present invention;

fig. 5 is an elevational cross-section of the mount of the present invention.

Description of reference numerals:

1. a door frame; 11. a first door body; 12. a second door body; 13. a rubber seal strip; 14. a smoke detector; 2. a fire-proof frame; 21. a return spring; 22. a rubber sealing block; 3. a mounting frame; 31. a motor; 32. a wire winding rod; 33. a fire-proof rope; 34. a partition plate; 35. a delay switch; 36. and (6) rotating the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-5, a smoke-isolating airtight steel fireproof door, comprising a door frame 1, wherein a first door body 11 and a second door body 12 are rotatably connected in the door frame 1 through hinges, the two door bodies and the door frame constitute a common steel fireproof door, the materials and the internal structure of the three are disclosed, and are not described herein repeatedly, four fireproof frames 2 which are uniformly distributed are welded outside the first door body 11 and the second door body 12, the fireproof frames 2 are made of metal or fireproof material, one side of the inner wall of the fireproof frame 2 is welded with a plurality of reset springs 21 which are uniformly distributed, so as to support the reset springs 21, a rubber sealing block 22 is bonded between one ends of the reset springs 21, and the rubber sealing block 22 is convenient to support and limit.

The door frame 1, the outer walls of the first door body 11 and the second door body 12 are all contacted with one side of a rubber sealing block 22, the rubber sealing block 22 can cover and seal a gap between the door frame 1 and the two door bodies, a mounting frame 3 is fixedly installed at the top of one side of the door frame 1 through bolts, a motor 31 is fixedly installed at one side of the inner wall of the mounting frame 3 through bolts, the support of the motor 31 is convenient, a winding rod 32 is welded at the output end of the motor 31, the motor 31 can drive the winding rod 32 to rotate after operation, two fire ropes 33 which are symmetrically distributed are wound outside the winding rod 32, the fire ropes 33 can be wound and extended after the winding rod 32 rotates, the bottom ends of the two fire ropes 33 are respectively wound outside a fixed rod welded at the tops of the outer walls of the first door body 11 and the second door body 12, the two door bodies can be driven to move after the winding of the fire ropes 33, the two door bodies can be closed on the door frame 1, a time delay switch 35 is fixedly installed in the door frame 3 through bolts, be convenient for fix delay switch 35, door frame 1 outer wall has two smoke detector 14 of symmetric distribution through bolt fixed mounting, and two smoke detector 14 can be surveyed the smog of preventing fire door both sides.

Specifically, referring to fig. 2-3, the fire-proof frame 2 is in an L shape, so as to support the return spring 21, and the first door 11 is in contact with the second door 12, so as to close the fire-proof door.

Specifically, referring to fig. 1 to 5, the motor 31 is electrically connected to the delay switch 35, the delay switch 35 can be turned on or off after being delayed, the delay switch 35 is electrically connected to the smoke detector 14, and the smoke detector 14 turns on or off the delay switch 35 according to its own control unit after detecting smoke information.

Specifically, referring to fig. 1-5, the smoke detector 14 is electrically connected to an external power source for providing power to the external power source.

Specifically, referring to fig. 1 to 5, the top end of the fire-proof rope 33 is located between the two partition boards 34, so that the partition boards 34 can limit the fire-proof rope 33, the fire-proof rope 33 can be rolled only between the two partition boards 34, rubber sealing strips 13 are embedded at the top and the bottom of the outer walls of the first door body 11 and the second door body 12, and the rubber sealing strips 13 can seal between the two door bodies and the door frame 1 and seal between the two door bodies and the ground.

Specifically, referring to fig. 5, a rotating groove 36 is formed in an inner wall of one side of the mounting bracket 3, which is away from the motor 31, one end of the winding rod 32 is rotatably sleeved in the rotating groove 36, the rotating groove 36 facilitates the rotation of the winding rod 32, and the mounting bracket 3 also facilitates the support of the winding rod 32.

Specifically, referring to fig. 5, four partition plates 34 are fixedly sleeved on the outer wall of the winding rod 32, and the partition plates 34 are in a circular shape, so as to facilitate fixing of the partition plates 34.

The working principle is as follows: when in use, the second door body 12 can be rotated and opened, then the first door body 11 is rotated and opened, so that the opening of the iron fireproof door can be realized, when the fireproof door is closed, the rubber sealing block 22 and the rubber sealing strip 13 can seal the two door bodies, the door frame 1 and the ground, when the smoke detector 14 detects smoke in a fire, the delay switch 35 can be opened, after the delay of the delay switch 35, the motor 31 can be opened by the delay switch 35, the winding rod 32 can be driven to rotate after the motor 31 operates, so as to wind the fireproof rope 33, the two door bodies can be driven to move by winding the fireproof rope 33, so that the two door bodies can be in situ and contact with each other, so that the automatic door closing of the fireproof door can be realized, when people in a fire point evacuate, the door bodies are forcibly opened, the winding rod 32 can be driven to rotate, the door bodies are opened, and the smoke detector 14 can be opened again when people evacuate, at this time, people can use the delay time of the delay switch 35 to separate from the fire, and the delay switch 35 can open the motor 31 again to realize automatic door closing after people are evacuated, so that smoke diffusion and fire spread are prevented.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a separate airtight steel of cigarette and prevent fire door, includes door frame (1), its characterized in that: the fireproof door is characterized in that a first door body (11) and a second door body (12) are rotatably connected in the door frame (1) through hinges, four fireproof frames (2) which are uniformly distributed are welded outside the first door body (11) and the second door body (12), a plurality of reset springs (21) which are uniformly distributed are welded on one side of the inner wall of each fireproof frame (2), a plurality of rubber sealing blocks (22) are bonded between one ends of the reset springs (21), the door frame (1), the first door body (11) and the outer wall of the second door body (12) are contacted with one side of each rubber sealing block (22), a mounting frame (3) is fixedly mounted at the top of one side of the door frame (1) through bolts, a motor (31) is fixedly mounted on one side of the inner wall of the mounting frame (3) through bolts, a winding rod (32) is welded at the output end of the motor (31), and two fireproof ropes (33) which are symmetrically distributed are wound outside the winding rod (32), two the winding is outside first door body (11) and second door body (12) outer wall top welded dead lever respectively in fireproof rope (33) bottom, there is delay switch (35) through bolt fixed mounting in mounting bracket (3), there are two smoke detector (14) of symmetric distribution on door frame (1) outer wall through bolt fixed mounting.

2. The smoke-insulating closed steel fire door as claimed in claim 1, wherein: the motor (31) is electrically connected with the delay switch (35), and the delay switch (35) is electrically connected with the smoke detector (14).

3. The smoke-insulating closed steel fire door as claimed in claim 1, wherein: the smoke detector (14) is electrically connected with an external power supply.

4. The smoke-insulating closed steel fire door as claimed in claim 1, wherein: a rotary groove (36) is formed in the inner wall of one side, away from the motor (31), of the mounting frame (3), and one end of the winding rod (32) is rotatably sleeved in the rotary groove (36).

5. The smoke-insulating closed steel fire door as claimed in claim 1, wherein: four partition plates (34) which are uniformly distributed are fixedly sleeved on the outer wall of the winding rod (32), and the partition plates (34) are in a circular ring shape.

6. The smoke-insulating, airtight steel fire door as claimed in claim 5, wherein: the top end of the fireproof rope (33) is positioned between the two partition plates (34), and rubber sealing strips (13) are embedded at the top and the bottom of the outer walls of the first door body (11) and the second door body (12).

7. The smoke-insulating closed steel fire door as claimed in claim 1, wherein: the fireproof frame (2) is L-shaped, and the first door body (11) is in contact with the second door body (12).