CN220869241U

CN220869241U - Automatic locking fire door

Info

Publication number: CN220869241U
Application number: CN202322331571.0U
Authority: CN
Inventors: 陈新云
Original assignee: JIANGSU XINGSHUN FIRE FIGHTING DOOR INDUSTRY CO LTD
Current assignee: JIANGSU XINGSHUN FIRE FIGHTING DOOR INDUSTRY CO LTD
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-04-30
Anticipated expiration: 2033-08-29

Abstract

The utility model discloses an automatic locking fire door which comprises a door frame, wherein a fireproof door plate is hinged inside the door frame, an automatic locking mechanism is arranged on the door frame and is connected and matched with the fireproof door plate, high-temperature resistant fireproof plates are arranged on both sides of the fireproof door plate, and annular grooves are formed in the fireproof door plate and the outer sides of the two high-temperature resistant fireproof plates. When the fire door plate is normally used, the fire door plate is kept closed under the action of the automatic locking mechanism, and when a fire emergency occurs, the fire door plate is opened by manpower to escape, the automatic locking mechanism ensures that the fire door plate is automatically closed and locked after being opened, then when fire smoke spreads, and the temperature rise pressure rises, the expansion sealing piece in the annular groove is heated and expanded, so that a gap between the door frame and the fire door plate is timely sealed, and the device has the advantages of ensuring the sealing effect of the fire door and ensuring the safety of an escape passage.

Description

Automatic locking fire door

Technical Field

The utility model relates to the technical field of fire doors, in particular to an automatic locking fire door.

Background

Fire door refers to the door that can satisfy fire-resistant stability, integrality and thermal-insulated nature requirement in certain time, and fire door is one of the important safety device in the building, and its effect is isolated the fire source when the conflagration takes place, and protection personnel life and property safety, traditional fire door need manual operation to close, exists the risk of manual negligence and maloperation.

Through searching, application number 202121195920.5 discloses a fire door with automatic locking device, includes: a layer of water pipe is laid under the surface skin of the fire door main body, when a fire disaster occurs, the water valve is automatically opened under the action of the control unit, tap water is injected into the water pipe from the water inlet, and meanwhile, the water after being heated is discharged from the water outlet, so that the fire door can be cooled down, the aim of reducing the damage of the fire door is fulfilled, when the fire door is used at ordinary times, the fire door main body can be opened and closed by pulling the door handle, people can conveniently pass, meanwhile, because larger impact air flow and the like can be generated when the fire disaster occurs, no enough time is needed for the normally closed fire door to perform the operation of locking the door, fire is easy to spread into a corridor, the fire is automatically locked through the first lock tongue and the second lock tongue, the automatic locking of the fire door is realized when the water pipe is triggered, and the safety of people in the fire door is guaranteed.

But in the prior art, after the door plate is automatically closed, the sealing effect cannot be ensured, and along with the increase of smog and the increase of hot air pressure, the smog can still leak into the escape passage through the door seam, so that the escape safety is influenced.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model aims to provide an automatic locking fire door so as to overcome the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme.

The utility model provides an automatic locking fire door, includes the door frame, the inside of door frame articulates there is the fire door plant, install automatic locking mechanism on the door frame, automatic locking mechanism and fire door plant are connected the cooperation, the double-sided of fire door plant all is provided with high temperature resistant PLASTIC LAMINATED, the outside of fire door plant and two high temperature resistant PLASTIC LAMINATED forms the ring channel, the internally mounted of ring channel has the expansion seal spare.

As a further description of the above technical solution: the automatic locking mechanism comprises a fixed shell, a guide rod, a tension piece and a hinging rod, wherein the outer side of the fixed shell is fixedly connected to a door frame, two ends of the guide rod are fixedly connected to the inside of the fixed shell, the tension piece is mounted inside the fixed shell and is in sliding fit with the guide rod, one end of the hinging rod is hinged to the tension piece, and the other end of the hinging rod is hinged to the fireproof door plate.

As a further description of the above technical solution: the tension piece comprises a spring and a sliding block, the sliding block is connected between the outer side of the guide rod and the fixed shell in a sliding mode, one side of the sliding block is connected with the outer side of the guide rod through the elastic force of the spring and the fixed shell in a sleeved mode.

As a further description of the above technical solution: the expansion sealing piece comprises a high-temperature-resistant rubber ring body and a plurality of supporting elastic blocks, wherein the high-temperature-resistant rubber ring body is clamped in the annular groove, the supporting elastic blocks are fixed in the high-temperature-resistant rubber ring body in an equidistance manner, and nitrogen is filled in the high-temperature-resistant rubber ring body.

As a further description of the above technical solution: the fireproof door plate is embedded with an observation window, and the observation window is made of high-temperature-resistant glass.

As a further description of the above technical solution: the fireproof door plate is hinged with a handle, and the door frame is fixedly connected with a reflective indicator light board.

Compared with the prior art, the utility model has the advantages that:

The scheme is used by matching the expansion sealing piece with the automatic locking mechanism, so that the device has the advantages of ensuring the sealing effect of the fireproof door and ensuring the safety of the escape passage.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic view of a partial perspective structure of the present utility model;

FIG. 3 is a schematic view of a partial cross-sectional structure of the present utility model;

fig. 4 is a schematic view of a partial top view cross-section structure of the present utility model.

The reference numerals in the figures illustrate:

1. A door frame; 2. a fire door panel; 21. an observation window; 22. reflective indicator light board; 23. a handle; 3. an automatic locking mechanism; 31. a fixed case; 32. a guide rod; 33. a tension member; 331. a spring; 332. a sliding block; 34. a hinge rod; 4. high temperature resistant fire protection plate; 5. an annular groove; 6. expanding the seal; 61. a high temperature resistant rubber ring body; 62. and supporting the elastic 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;

Referring to fig. 1 to 4, the automatic locking fire door of the present utility model comprises a door frame 1, wherein a fire door plate 2 is hinged in the door frame 1, an automatic locking mechanism 3 is installed on the door frame 1, the automatic locking mechanism 3 is connected and matched with the fire door plate 2, high temperature resistant fire protection plates 4 are arranged on both sides of the fire door plate 2, annular grooves 5 are formed on the outer sides of the fire door plate 2 and the two high temperature resistant fire protection plates 4, and an expansion sealing piece 6 is installed in the annular grooves 5.

According to the utility model, the door frame 1 is used as the fireproof door plate 2 to be installed with the connecting mechanism, during normal use, the fireproof door plate 2 is kept closed under the action of the automatic locking mechanism 3, when a fire disaster emergency occurs, the fireproof door plate 2 is opened by manpower to escape, the automatic locking mechanism 3 ensures that the fireproof door plate 2 is automatically closed and locked after being opened, then when fire smoke spreads, and the temperature rising pressure rises, the expansion sealing piece 6 in the annular groove 5 is heated and expanded, so that a gap between the door frame 1 and the fireproof door plate 2 is timely sealed, the smoke penetration rate is reduced, the efficient sealing is realized, and during normal use, the expansion sealing piece 6 is kept in a normal state, the service life and the stability of the device are prolonged, and the sealing effectiveness of the emergency is ensured, so that the device has the advantages of ensuring the sealing effect of the fireproof door and ensuring the safety of an escape channel, and solving the problems that the sealing effect cannot be ensured after the door plate is automatically closed in the prior art, along with the increase of smoke and the increase of the pressure of hot air, the escape safety is still influenced by leaking into the escape channel through the door gap.

Please refer to fig. 1, wherein: the automatic locking mechanism 3 comprises a fixed shell 31, a guide rod 32, a tension member 33 and a hinge rod 34, wherein the outer side of the fixed shell 31 is fixedly connected to the door frame 1, both ends of the guide rod 32 are fixedly connected to the inside of the fixed shell 31, the tension member 33 is mounted inside the fixed shell 31 and is in sliding fit with the guide rod 32, one end of the hinge rod 34 is hinged to the tension member 33, and the other end of the hinge rod 34 is hinged to the fireproof door panel 2.

In the utility model, continuous pulling force is generated on the hinging rod 34 through the pulling piece 33 in the fixed shell 31, so that the fireproof door plate 2 and the door frame 1 are kept closed, and the fireproof door plate 2 can be automatically closed after being opened.

Please refer to fig. 1, wherein: the tension member 33 includes a spring 331 and a slider 332, the slider 332 is slidably connected between the outer side of the guide rod 32 and the fixed housing 31, one side of the slider 332 is elastically connected to the fixed housing 31 through the spring 331, and the spring 331 is sleeved on the outer side of the guide rod 32.

In the utility model, the spring 331 is matched with the sliding block 332 to realize the pulling force assistance on the hinge rod 34, so that the automatic locking is realized, and the lock can be opened manually in emergency, thereby avoiding the locking.

Referring to fig. 3 and 4, the expansion seal 6 includes a high temperature resistant rubber ring 61 and a plurality of supporting elastic blocks 62, the high temperature resistant rubber ring 61 is clamped inside the annular groove 5, the supporting elastic blocks 62 are fixed inside the high temperature resistant rubber ring 61 in an equidistance arrangement, and nitrogen is filled inside the high temperature resistant rubber ring 61.

In the utility model, the high-temperature-resistant rubber ring body 61 is reinforced by the plurality of supporting elastic blocks 62 inside the high-temperature-resistant rubber ring body 61, and the inside is filled with nitrogen, so that the gas chemical property is more stable and the high-temperature resistance is stronger when the high-temperature expansion is carried out.

Please refer to fig. 1 and 2, wherein: the fireproof door panel 2 is embedded with an observation window 21, and the observation window 21 is made of high-temperature-resistant glass.

In the utility model, the opposite situation is conveniently observed through the observation window 21 through the fireproof door panel 2, so that escape can be conveniently judged.

Please refer to fig. 1, wherein: the fireproof door plate 2 is hinged with a handle 23, and the door frame 1 is fixedly connected with a reflective indicator light plate 22.

According to the utility model, the fireproof door plate 2 is conveniently opened by the handle 23 to escape, and when the smoke is rich during escape by the reflective indicator lamp plate 22, the handle 23 can be found out in time, so that the escape is facilitated.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. An automatic locking fire door, comprising a door frame (1), characterized in that: the inside of door frame (1) articulates there is fire prevention door plant (2), install automatic locking mechanism (3) on door frame (1), automatic locking mechanism (3) are connected with fire prevention door plant (2) and are cooperateed, the double-sided of fire prevention door plant (2) all is provided with high temperature resistant PLASTIC LAMINATED (4), the outside of fire prevention door plant (2) and two high temperature resistant PLASTIC LAMINATED (4) forms ring channel (5), the internally mounted of ring channel (5) has expansion seal piece (6).

2. An automatic locking fire door according to claim 1, wherein: the automatic locking mechanism (3) comprises a fixed shell (31), a guide rod (32), a tension member (33) and a hinge rod (34), wherein the outer side of the fixed shell (31) is fixedly connected to a door frame (1), two ends of the guide rod (32) are fixedly connected to the inside of the fixed shell (31), the tension member (33) is mounted to the inside of the fixed shell (31) and is in sliding fit with the guide rod (32), one end of the hinge rod (34) is hinged to the tension member (33), and the other end of the hinge rod (34) is hinged to the fireproof door plate (2).

3. An automatic locking fire door according to claim 2, wherein: the tension piece (33) comprises a spring (331) and a sliding block (332), the sliding block (332) is connected between the outer side of the guide rod (32) and the fixed shell (31) in a sliding mode, one side of the sliding block (332) is connected with the fixed shell (31) through elastic force of the spring (331), and the spring (331) is sleeved on the outer side of the guide rod (32).

4. An automatic locking fire door according to claim 1, wherein: the expansion sealing piece (6) comprises a high-temperature-resistant rubber ring body (61) and a plurality of supporting elastic blocks (62), wherein the high-temperature-resistant rubber ring body (61) is clamped into the annular groove (5), the supporting elastic blocks (62) are equidistantly arranged and fixed in the high-temperature-resistant rubber ring body (61), and nitrogen is filled in the high-temperature-resistant rubber ring body (61).

5. An automatic locking fire door according to claim 1, wherein: an observation window (21) is embedded in the fireproof door plate (2), and the observation window (21) is high-temperature-resistant glass.

6. An automatic locking fire door according to claim 1, wherein: the fireproof door plate (2) is hinged with a handle (23), and the door frame (1) is fixedly connected with a reflective indicator lamp plate (22).