CN209799785U - Fire door is prevented to quick hot closed of heat conduction - Google Patents

Abstract

the utility model discloses a rapid heat conduction heat closing type fireproof door, which comprises a steel door frame, a steel door plate, a door closer, a hinge, a reset handle, an easily-melted alloy hole, a protection plate and a locking component; the steel door plate is rotatably connected with the steel door frame through a hinge, the locking assembly is arranged inside the steel door plate, the telescopic rod is connected with the lock shell, the telescopic rod is connected with the connecting plate, and the spring is sleeved on the telescopic rod; the connecting plate is connected with the rack; a lock catch is arranged at one end of the rack far away from the connecting plate, and a gear is connected to the rack in a meshed manner; a rotating shaft is arranged in the center of the gear, and two ends of the rotating shaft respectively extend out of the inner and outer steel door plates to be connected with a reset handle; an fusible alloy stop block is arranged above the limiting plate; two ends of the fusible alloy stop block are inserted into the fusible alloy holes; the both sides of shutting subassembly symmetry in proper order are equipped with sound absorbing layer, insulating layer and flame retardant coating. The utility model has the characteristics of it is thermal-insulated to give sound insulation, can start the shutting subassembly when the condition of a fire takes place and will prevent that the fire door is closed to lock, prevents that the intensity of a fire smoke and dust from stretching out.

Description

Fire door is prevented to quick hot closed of heat conduction

Technical Field

The utility model relates to a prevent fire door technical field, especially relate to a fire door is prevented to quick hot closed of heat conduction.

Background

The fireproof door is a door which can meet the requirements of fire-resistant stability, integrity and heat insulation within a certain time, and is a fireproof partition which is arranged between fireproof partitions, evacuation staircases, vertical shafts and the like and has certain fire resistance. The fireproof door has the functions of a common door, has the functions of preventing the fire from spreading and the smoke from diffusing, and can prevent the fire from spreading within a certain time to ensure the evacuation of people. Prevent fire door in the existing market and realize the switch action to the door through the door closer more, when the condition of a fire takes place, the door closer can not be fine play a confined effect to preventing fire door, can make to prevent fire door under the impact of hot gas flow and be in and open closed circulation for the poisonous flue gas that a large amount of burning produced emits, causes the injury to people's health.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a fire door is prevented to quick hot closed of heat conduction has the thermal-insulated characteristics of sound insulation, can start the shutting subassembly when the condition of a fire takes place and will prevent that the intensity of a fire smoke from stretching out with fire door closed locking.

the utility model provides a quick heat conduction heat closed fireproof door, which comprises a steel door frame, a steel door plate, a door closer, a hinge, a reset handle, an easily-melted alloy hole, a protection plate and a locking component; the steel door plate is provided with an inner door plate and an outer door plate, the steel door plate is rotatably connected with a steel door frame through a hinge, the upper part of the outer door plate of the steel door plate is connected with a door closer, and a reset handle and an fusible alloy hole are arranged on one side of the middle part of the steel door plate, which is far away from the hinge; the upper end of the door closer is connected with the steel door frame; two reset handles and two easy-to-fuse gold holes are symmetrically arranged inside and outside the gold hole;

the locking assembly is arranged inside the steel door plate and comprises a gear, a rotating shaft, an fusible alloy stop block, a limiting plate, a limiting block, a telescopic rod, a spring, a connecting plate, a rack, a lock catch and a lock shell; one end of the telescopic rod is connected with the lock shell, the other end of the telescopic rod is connected with the connecting plate, and the telescopic rod is sleeved with a spring; two ends of the spring are respectively connected to the lock shell and the connecting plate; one end of the connecting plate, which is far away from the telescopic rod, is connected with the rack; a lock catch is arranged at one end of the rack far away from the connecting plate, and a gear is connected to the rack in a meshed manner; a rotating shaft is arranged in the center of the gear, and a limiting plate is arranged on one gear tooth of the gear; two ends of the rotating shaft respectively extend out of the inner and outer steel door plates to be connected with the reset handle; an fusible alloy stop block is arranged above the limiting plate; two ends of the fusible alloy stop block are inserted into the fusible alloy holes;

The sound absorption layer, the heat insulation layer and the fireproof layer are symmetrically arranged on two sides of the locking component from inside to outside in sequence.

Preferably, the middle part of the steel door plate is provided with fireproof glass.

Preferably, a protection plate is arranged at the joint of the rotating shaft and the reset handle.

Preferably, the stopper setting is in the lock shell, and stopper and fusible alloy dog are located the both sides of gear respectively, and the stopper is located fusible alloy dog left side below, and the distance that stopper and fusible alloy dog apart from the gear center equals.

Preferably, the rotating shaft and the reset handle are made of ceramic fiber materials.

In the utility model, the sound absorbing layer arranged in the fireproof door isolates the sound inside and outside the door under the normal state, thereby ensuring the quiet indoor environment, under the emergency condition that the fire occurs, the steel door plate plays an initial fireproof role, when the steel door plate can not block the fire, the fire is blocked by the inner fireproof layer, the fusible alloy stop block is heated to melt, the rack is pushed forward under the action of the spring to drive the lock catch to move towards the steel door frame, the lock catch enters the lock hole arranged on the steel door frame to lock the fireproof door to prevent the fire from spreading, the heat insulation layer arranged between the fireproof layer and the locking component can play a role in protecting the locking component, two ends of the rotating shaft connected with the center of the gear are respectively connected with the reset handle, can guarantee to prevent that fire door people outside the door when locking withdraws can artificially open and prevent fire door, prevent that fire door lock dies and lead to people's unable safe evacuation when taking place the condition of a fire.

drawings

Fig. 1 is a front view of the present invention, which provides a fire door with a fast heat-conducting and heat-closing function.

Fig. 2 is the utility model provides a structural schematic diagram of shutting subassembly 9 in quick heat conduction heat-seal type prevents fire door.

Fig. 3 is the utility model provides a fire door's inner structure schematic diagram is prevented to quick hot closed of heat conduction.

In the figure, 1, a steel door frame; 2. a steel door panel; 3. a door closer; 4. a hinge; 5. fireproof glass; 6. resetting the handle; 7. a fusible alloy hole; 8. a protection plate; 9. a locking assembly; 10. a gear; 11. a rotating shaft; 12. a fusible alloy stop; 13. a limiting plate; 14. a limiting block; 15. a telescopic rod; 16. a spring; 17. a connecting plate; 18. a rack; 19. locking; 20. a fire barrier layer; 21. a thermal insulation layer; 22. a sound absorbing layer; 23. a lock shell.

Detailed Description

As shown in fig. 1-3, fig. 1 is a front view of a fast heat-conducting heat-closing fireproof door according to the present invention; fig. 2 is a schematic structural view of a locking assembly 9 in the rapid heat conduction heat-closing type fireproof door of the present invention; fig. 3 is the utility model provides a fire door's inner structure schematic diagram is prevented to quick hot closed of heat conduction.

Referring to fig. 1-3, the utility model provides a quick heat conduction heat-closed fireproof door, which comprises a steel door frame 1, a steel door plate 2, a door closer 3, a hinge 4, a reset handle 6, an fusible alloy hole 7, a protection plate 8 and a locking component 9; the steel door plate 2 is provided with an inner door plate and an outer door plate, the steel door plate 2 is rotatably connected with the steel door frame 1 through a hinge 4, the upper part of the outer door plate of the steel door plate 2 is connected with the door closer 3, and a reset handle 6 and a fusible alloy hole 7 are arranged on one side of the middle part of the steel door plate 2, which is far away from the hinge 4; the upper end of the door closer 3 is connected with the steel door frame 1; the reset handle 6 and the fusible alloy hole 7 are symmetrically arranged inside and outside;

The locking assembly 9 is arranged inside the steel door panel 2, and the locking assembly 9 comprises a gear 10, a rotating shaft 11, a fusible alloy stop 12, a limiting plate 13, a limiting block 14, a telescopic rod 15, a spring 16, a connecting plate 17, a rack 18, a lock catch 19 and a lock shell 23; one end of the telescopic rod 15 is connected with the lock shell 23, the other end of the telescopic rod 15 is connected with the connecting plate 17, and the telescopic rod 15 is sleeved with the spring 16; two ends of the spring 16 are respectively connected to the lock shell 23 and the connecting plate 17; one end of the connecting plate 17 far away from the telescopic rod 15 is connected with a rack 18; a lock catch 19 is arranged at one end of the rack 18 far away from the connecting plate 17, and the rack 18 is connected with the gear 10 in a meshed manner; a rotating shaft 11 is arranged in the center of the gear 10, and a limiting plate 13 is arranged on one gear tooth of the gear 10; two ends of the rotating shaft 11 respectively extend out of the inner and outer steel door plates 2 and are connected with the reset handle 6; a fusible alloy stop block 12 is arranged above the limiting plate 13; both ends of the fusible alloy stop block 12 are inserted into the fusible alloy holes 7;

The two sides of the locking component 9 are symmetrically provided with a sound absorption layer 22, a heat insulation layer 21 and a fire prevention layer 20 from inside to outside in sequence.

in the specific working process of the rapid heat conduction and heat closing fireproof door of the embodiment, in a normal state, a sound absorption layer 22 arranged in the fireproof door isolates the sound inside and outside the door, so as to ensure an indoor quiet environment, in an emergency situation of fire, a steel door plate 2 plays a preliminary fireproof role, when the steel door plate cannot block the fire, an internal fireproof layer 20 blocks the fire, an easily-melted alloy stop block 12 is heated to melt, a rack 18 is pushed forward under the action of a spring 16 to drive a lock catch 19 to move towards a steel door frame 1, the lock catch 19 enters a lock hole arranged on the steel door frame 1 to lock the fireproof door, so as to prevent the fire from spreading, a heat insulation layer 21 arranged between the fireproof layer 20 and the lock assembly 9 can play a role in protecting the lock assembly 9, two ends of a rotating shaft 11 connected with the center of a gear 10 are respectively connected with a reset handle 6, so as to ensure that people inside and outside the door can artificially open the fireproof door when people evacuate and, the phenomenon that people can not safely evacuate due to the fact that the fire door is locked when fire occurs is avoided.

In the specific embodiment, the steel door panel 2 is provided with fire-proof glass 5 in the middle. People can see the indoor situation through the fireproof glass 5 to know whether people leave and know the information such as the fire spreading situation.

Furthermore, a protective plate 8 is arranged at the joint of the rotating shaft 11 and the reset handle 6. The protection plate 8 can protect the internal locking component 9 of the door not to be broken by flame, a large amount of smoke and dust can be generated when the fire occurs, the protection plate 8 can also prevent the smoke and dust from entering the locking component 9 to cause the damage of the internal locking structure of the locking component, and therefore the protection door cannot be normally locked or reset to be opened.

furthermore, a limiting block 14 is arranged in the lock shell 23, the limiting block 14 and the fusible alloy stopper 12 are respectively located at two sides of the gear 10, the limiting block 14 is located at the left lower side of the fusible alloy stopper 12, and the distance between the limiting block 14 and the fusible alloy stopper 12 and the center of the gear 10 is equal. When a fire occurs, after the fusible alloy stop block 12 is melted, the rack 18 is pushed forward under the action of the spring 16, at the moment, the gear 10 rotates anticlockwise, the limiting plate 13 is connected to the gear teeth, if the gear rotates freely, the limiting plate 13 can be clamped with the rack 18 at last, the rack 18 is damaged, the locking assembly cannot be used continuously, and the limiting block 14 is stopped before the limiting plate 13 contacts the rack, so that the situation is avoided.

Furthermore, the rotating shaft 11 and the reset handle 6 are made of ceramic fiber materials. The ceramic fiber material has low thermal capacity, low thermal conductivity, high compressive strength, long service life and excellent thermal stability, and can ensure that the internal structure of the locking component 9 cannot be damaged due to heat conduction when a fire occurs, thereby protecting the stability of the locking structure.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A rapid heat conduction and heat closing type fireproof door is characterized by comprising a steel door frame (1), a steel door plate (2), a door closer (3), a hinge (4), a reset handle (6), an fusible alloy hole (7), a protection plate (8) and a locking assembly (9); the steel door plate (2) is provided with an inner door plate and an outer door plate, the steel door plate (2) is rotatably connected with the steel door frame (1) through a hinge (4), the upper part of the outer door plate of the steel door plate (2) is connected with the door closer (3), and one side of the middle part of the steel door plate (2) far away from the hinge (4) is provided with a reset handle (6) and an easily-fused gold hole (7); the upper end of the door closer (3) is connected with the steel door frame (1); the reset handle (6) and the fusible alloy hole (7) are internally and externally symmetrically provided with two;

The locking assembly (9) is arranged inside the steel door plate (2), and the locking assembly (9) comprises a gear (10), a rotating shaft (11), an fusible alloy stop block (12), a limiting plate (13), a limiting block (14), a telescopic rod (15), a spring (16), a connecting plate (17), a rack (18), a lock catch (19) and a lock shell (23); one end of the telescopic rod (15) is connected with the lock shell (23), the other end of the telescopic rod (15) is connected with the connecting plate (17), and the telescopic rod (15) is sleeved with a spring (16); two ends of the spring (16) are respectively connected to the lock shell (23) and the connecting plate (17); one end of the connecting plate (17) far away from the telescopic rod (15) is connected with the rack (18); a lock catch (19) is arranged at one end of the rack (18) far away from the connecting plate (17), and the rack (18) is connected with a gear (10) in a meshing manner; a rotating shaft (11) is arranged in the center of the gear (10), and a limiting plate (13) is arranged on one gear tooth of the gear (10); two ends of the rotating shaft (11) respectively extend out of the inner and outer steel door plates (2) and are connected with the reset handle (6); a fusible alloy stop block (12) is arranged above the limiting plate (13); two ends of the fusible alloy stop block (12) are inserted into the fusible alloy hole (7);

The sound absorption layer (22), the heat insulation layer (21) and the fire-proof layer (20) are symmetrically arranged on two sides of the locking component (9) from inside to outside in sequence.

2. A fire door with rapid thermal conduction and closing according to claim 1, characterized in that the steel door panel (2) is provided with fire-proof glass (5) in the middle.

3. The fire door as claimed in claim 1, wherein a protective plate (8) is provided at the junction of the pivot (11) and the reset knob (6).

4. The fire door as claimed in claim 1, wherein the stopper (14) is disposed in the lock housing (23), the stopper (14) and the fusible alloy stopper (12) are respectively disposed at two sides of the gear (10), the stopper (14) is disposed at a lower left of the fusible alloy stopper (12), and the distance between the stopper (14) and the fusible alloy stopper (12) and the center of the gear (10) is equal.

5. A fire door as claimed in claim 1, characterised in that the shaft (11) and the return handle (6) are made of ceramic fibre.