CN220285607U

CN220285607U - Fireproof door with adjustable tightness

Info

Publication number: CN220285607U
Application number: CN202321762480.6U
Authority: CN
Inventors: 钟平
Original assignee: Zhejiang Zhenyuan Security Technology Co ltd
Current assignee: Zhejiang Zhenyuan Security Technology Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-01-02
Anticipated expiration: 2033-07-05

Abstract

The utility model discloses a fireproof door with adjustable tightness, which comprises a first door plate (1) and a second door plate (11), wherein a supporting main body (2) is arranged between the first door plate (1) and the second door plate (11), a driving cavity (21) is arranged in the supporting main body (2), sealing cavities (22) are respectively arranged on the upper side and the lower side of the driving cavity (21), the driving cavity (21) is isolated from the sealing cavities (22) through fixing plates (23), a driving component (3) is arranged in the driving cavity (21), a sealing component (4) is arranged in the sealing cavity (22), the sealing component (4) is connected with the driving component (3) through a pushing component (6), and through grooves for the sealing component (4) to extend are respectively arranged at the top and the bottom of the supporting main body (2). The utility model has the characteristics of good sealing performance and fireproof isolation performance in fire disaster.

Description

Fireproof door with adjustable tightness

Technical Field

The utility model relates to a normally-closed fireproof door, in particular to a fireproof door with adjustable tightness.

Background

Fireproof doors refer to doors capable of meeting the requirements of fire resistance stability, integrity and heat insulation in a certain period of time, and are generally arranged in channels such as fireproof partitions, evacuation stairwells and vertical shafts, and have certain fire resistance and prevent fire spreading and smoke diffusion.

Normally open fire doors and normally closed fire doors are two types of fire doors commonly found in buildings, wherein normally open fire doors are usually installed in places where a channel needs to be kept clear, such as emergency exits or areas where people flow is dense, and are kept open at ordinary times, when a fire disaster occurs, the ambient temperature rises to a certain extent, a thermosensitive element installed on the door expands, a closing mechanism is triggered to automatically close the door, smoke and flame are prevented from being spread to other areas, and the time for people to escape is provided.

But normally open prevents fire door, inside lacks the isolated mechanism of effectual seal, and its crack department still has the space and can't obtain perfect airtight condition, and the flue gas when the conflagration takes place then more passes these tiny gaps relatively easily and circulate and spread, and then has reduced preventing fire door's isolated effect for the fire can't obtain effectual control, and then has reduced holistic fire behavior, causes certain potential safety hazard. To above-mentioned problem, there is the ventilation fireproof door that adopts extra-increased joint strip to stop up the crack at present, but the degree of difficulty that opens and shuts of fireproof door can be increaseed to extra-increased joint strip, and joint strip exposes simultaneously for a long time outside the use friction, also takes place wearing and tearing, the condition that drops easily, leads to the joint strip to the jam sealing performance of crack weakens when the conflagration breaks out.

Disclosure of Invention

The utility model aims to provide a fireproof door with adjustable tightness. The utility model has the characteristics of good sealing performance and fireproof isolation performance in fire disaster.

The technical scheme of the utility model is as follows: the utility model provides a fire door of leakproofness adjustable, includes first door plant and second door plant, is equipped with the support main part between first door plant and the second door plant, the inside of support main part is equipped with the drive chamber, and the upper and lower both sides of drive chamber all are equipped with sealed chamber, keep apart through the fixed plate between drive chamber and the sealed chamber, are equipped with drive assembly in the drive chamber, are equipped with seal assembly in the seal chamber, and seal assembly is connected with drive assembly through pushing the subassembly, and the top and the bottom of support main part all are equipped with the logical groove that supplies seal assembly to stretch out.

In the fireproof door with the adjustable tightness, the driving assembly comprises a driver, a driving gear is arranged on the driver, racks are meshed on two opposite sides of the driving gear, and one ends of the two racks are connected with the pushing assembly on the corresponding side through a moving plate respectively.

In the fireproof door with the adjustable tightness, the pushing assembly comprises a pushing rod, one end of the pushing rod is connected with the movable plate on the corresponding side, the other end of the pushing rod penetrates through the fixed plate and is sleeved with a spring, one end of the spring is connected with the fixed plate, and the other end of the spring is connected with the sealing assembly.

In the fireproof door with the adjustable tightness, the sealing assembly comprises a water tank, cooling water and fire extinguishing gas are filled in the water tank, a fireproof sealing strip is arranged on one side, far away from the fireproof door, of the water tank, a first water outlet communicated with the outside and a second water outlet communicated with the fireproof sealing strip are arranged on the water tank, and sealing films are arranged on the first water outlet and the second water outlet.

In the fireproof door with the adjustable tightness, the water tank comprises an upper water tank and a lower water tank, the fire extinguishing gas in the upper water tank is inert gas with the mass lighter than that of air, and the fire extinguishing gas in the lower water tank is inert gas with the mass heavier than that of air.

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

in the normal daily state of the fireproof door, the driving assembly drives the sealing assembly to be hidden in the supporting main body through the pushing assembly, so that normal opening and closing of the fireproof door are not affected; when a fire disaster occurs, the driving assembly drives the sealing assembly to extend outwards through the pushing assembly to block the upper door gap and the lower door gap, so that the purposes of quick sealing and isolation of smoke and flame circulation are achieved.

Drawings

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

fig. 2 is a schematic structural view of the water tank.

The marks in the drawings are: 1. a first door panel; 11. a second door panel; 2. a support body; 21. a drive chamber; 22. sealing the cavity; 23. a fixing plate; 3. a drive assembly; 31. a drive gear; 32. a rack; 33. a moving plate; 4. a seal assembly; 51. a water tank; 52. cooling water; 53. fire extinguishing gas; 54. fireproof sealing strips; 55. a first water outlet; 56. a second water outlet; 6. a pushing assembly; 61. a push rod; 62. and (3) a spring.

Detailed Description

The utility model is further illustrated by the following examples, which are not intended to be limiting.

Examples:

as shown in fig. 1-2, a fire door with adjustable tightness comprises a first door plate 1 and a second door plate 11, a supporting main body 2 is arranged between the first door plate 1 and the second door plate 11, a driving cavity 21 is arranged in the supporting main body 2, sealing cavities 22 are respectively arranged on the upper side and the lower side of the driving cavity 21, the driving cavity 21 and the sealing cavities 22 are isolated through a fixing plate 23, a driving component 3 is arranged in the driving cavity 21, a sealing component 4 is arranged in the sealing cavity 22, the sealing component 4 is connected with the driving component 3 through a pushing component 6, and through grooves for the sealing component 4 to extend out are respectively arranged at the top and the bottom of the supporting main body 2.

Under the normal daily state of the fireproof door, the driving assembly 3 drives the sealing assembly 4 to be hidden in the supporting main body 2 through the pushing assembly 6, so that normal switch closing of the fireproof door is not affected; when a fire disaster occurs, the driving assembly 3 drives the sealing assembly 4 to extend outwards through the pushing assembly 6 to block the upper door gap and the lower door gap, so that the purposes of quick sealing and isolating smoke and flame circulation are achieved.

The driving assembly 3 comprises a driver, a driving gear 31 is arranged on the driver, racks 32 are meshed with two opposite sides of the driving gear 31, and one ends of the two racks 32 are respectively connected with the pushing assembly 6 on the corresponding side through a moving plate 33. The driver is an electric driver or a manual driver, and the electric driver is connected with the temperature sensing element. The driver drives the driving gear 31 to rotate, and the driving gear 31 drives the racks 32 on two sides to move in opposite directions, so that the sealing assemblies 4 on the upper side and the lower side are driven to synchronously move through the racks 32, and the sealing speed is improved.

The pushing assembly 6 comprises a pushing rod 61, one end of the pushing rod 61 is connected with the moving plate 33 on the corresponding side, the other end of the pushing rod 61 penetrates through the fixed plate 23 and is sleeved with a spring 62, one end of the spring 62 is connected with the fixed plate 23, and the other end of the spring 62 is connected with the sealing assembly 4. The driving component 3 moves and drives the sealing component 4 to block the upper and lower door gaps through the linkage of the pushing rod 61, so that the rapid and comprehensive sealing effect is realized; through the arrangement of the spring 62, the sealing assembly 4 can be tightly attached to the wall, the gap is completely blocked, the tightness is improved, and simultaneously, the sealing assembly is suitable for the gap between the door seams with different widths.

The sealing assembly 4 comprises a water tank 51 connected with the pushing assembly 6, cooling water 52 and fire extinguishing gas 53 are filled in the water tank 51, a fireproof sealing strip 54 is arranged on one side, far away from a fireproof door, of the water tank 51, the fireproof sealing strip 54 is filled in the through groove, a first water outlet 55 communicated with the outside and a second water outlet 56 communicated with the fireproof sealing strip 54 are arranged on the side face of the water tank 51, and sealing films are arranged on the first water outlet 55 and the second water outlet 56. When a fire disaster occurs, the sealing assembly 4 is driven by the driving assembly 3 to extend the water tank 51 and the fireproof sealing strips 54 to the outside from the through grooves at the top and the bottom of the supporting main body 2 respectively, and the fireproof sealing strips 54 are heated to expand to plug the upper door gap and the lower door gap so as to prevent flame and harmful smoke from flowing from the door gap; at the same time, the cooling water 52 and the fire extinguishing gas 53 in the water tank 51 break through the sealing film after being heated, and are sprayed out from the first water outlet 55 and the second water outlet 56. The cooling water 52 and the fire extinguishing gas 53 sprayed out from the first water outlet 55 isolate, cool and extinguish the flame and the harmful smoke on the upper part of the fireproof door; the cooling water 52 and the fire extinguishing gas 53 sprayed out from the second water outlet 56 are sprayed onto the fireproof sealing strip 54, the cooling water 52 has the functions of cooling and heat insulation, and the damage of high-temperature flame to the fireproof sealing strip 54 is reduced; the fire-proof sealing strip 54 is tightly attached to the door gap due to the gas impact force of the fire-extinguishing gas 53, and the blocking effect is improved.

The water tank 51 includes an upper water tank and a lower water tank, the fire-extinguishing gas 53 in the upper water tank is an inert gas having a mass lighter than air, and the fire-extinguishing gas 53 in the lower water tank is an inert gas having a mass heavier than air. Inert gas with lighter mass than air is adopted in the upper water tank, and is released and then ascends to exhaust and squeeze harmful smoke above, so that the smoke is prevented from flowing from an upper door gap, oxygen is isolated, and flame above is extinguished; inert gas in the lower water tank is heavier than air, and after being released at high temperature, the inert gas sinks downwards to squeeze the smoke at the lower part, prevent the harmful smoke from flowing from the lower door gap, isolate oxygen and extinguish the flame at the lower part, so that the effective and comprehensive sealing and isolating performance is provided.

The working process comprises the following steps: under the normal daily state of the fireproof door, the driving assembly 3 drives the sealing assembly 4 to be hidden in the sealing cavity 22 of the supporting main body 2 through the pushing assembly 6, so that the normal opening and closing of the fireproof door are not affected;

when a fire disaster occurs, the internal temperature sensing element starts the driver or manually starts the driver, the driving component 3 drives the sealing components 4 at two sides to extend outwards through the pushing component 6, the upper door gap and the lower door gap are blocked, the purpose of quick sealing and isolation of smoke and flame circulation is achieved.

After the sealing component 4 extends out, the fireproof sealing strip 54 is heated to expand to plug the upper door gap and the lower door gap, so that flame and harmful smoke are prevented from flowing through the door gap; at the same time, the cooling water 52 and the fire extinguishing gas 53 in the water tank 51 break through the sealing film after being heated, and are sprayed out from the first water outlet 55 and the second water outlet 56. The cooling water 52 and the fire extinguishing gas 53 sprayed out from the first water outlet 55 isolate, cool and extinguish the flame and the harmful smoke on the upper part of the fireproof door; the cooling water 52 and the fire extinguishing gas 53 sprayed out from the second water outlet 56 are sprayed onto the fireproof sealing strip 54, the cooling water 52 has the functions of cooling and heat insulation, and the damage of high-temperature flame to the fireproof sealing strip 54 is reduced; the fire-proof sealing strip 54 is tightly attached to the door gap due to the gas impact force of the fire-extinguishing gas 53, and the blocking effect is improved. Inert gas with lighter mass than air is adopted in the upper water tank, and is released and then ascends to exhaust and squeeze harmful smoke above, so that the smoke is prevented from flowing from an upper door gap, oxygen is isolated, and flame above is extinguished; the lower water tank adopts inert gas with the mass heavier than that of air, and after the inert gas is released at high temperature, the inert gas sinks downwards to extrude the smoke below, so that the harmful smoke is prevented from flowing from the lower door gap, oxygen is isolated, the flame below is extinguished, and the effective and comprehensive sealing and isolating performance is provided.

Claims

1. The utility model provides a fire door is prevented to leakproofness adjustable which characterized in that: including first door plant (1) and second door plant (11), be equipped with support main part (2) between first door plant (1) and second door plant (11), the inside of support main part (2) is equipped with driving chamber (21), and the upper and lower both sides of driving chamber (21) all are equipped with sealed chamber (22), keep apart through fixed plate (23) between driving chamber (21) and sealed chamber (22), are equipped with drive assembly (3) in driving chamber (21), are equipped with seal assembly (4) in sealed chamber (22), and seal assembly (4) are connected with drive assembly (3) through pushing assembly (6), and the top and the bottom of support main part (2) all are equipped with the logical groove that supplies seal assembly (4) to stretch out.

2. The adjustable tightness fire rated door of claim 1 wherein: the driving assembly (3) comprises a driver, a driving gear (31) is arranged on the driver, racks (32) are meshed with two opposite sides of the driving gear (31), and one ends of the two racks (32) are connected with the pushing assemblies (6) on the corresponding sides through moving plates (33) respectively.

3. The adjustable tightness fire rated door of claim 1 wherein: the pushing assembly (6) comprises a pushing rod (61), one end of the pushing rod (61) is connected with the moving plate (33) on the corresponding side, the other end of the pushing rod (61) penetrates through the fixed plate (23) and is sleeved with a spring (62), one end of the spring (62) is connected with the fixed plate (23), and the other end of the spring (62) is connected with the sealing assembly (4).

4. The adjustable tightness fire rated door of claim 1 wherein: the sealing assembly (4) comprises a water tank (51), cooling water (52) and fire extinguishing gas (53) are arranged in the water tank (51), a fireproof sealing strip (54) is arranged on one side, far away from a fireproof door, of the water tank (51), a first water outlet (55) communicated with the outside and a second water outlet (56) communicated with the fireproof sealing strip (54) are arranged on the water tank (51), and sealing films are arranged on the first water outlet (55) and the second water outlet (56).

5. The adjustable tightness fire rated door of claim 4 wherein: the water tank (51) comprises an upper water tank and a lower water tank, wherein the fire-extinguishing gas (53) in the upper water tank is inert gas with the mass lighter than that of air, and the fire-extinguishing gas (53) in the lower water tank is inert gas with the mass heavier than that of air.