CN214330434U

CN214330434U - Single-opening fireproof door with embedded expansion seal

Info

Publication number: CN214330434U
Application number: CN202120454486.1U
Authority: CN
Inventors: 兰荣莲; 马成强; 何兵
Original assignee: Guangzhou Ronghua Door Industry Co ltd
Current assignee: Guangzhou Ronghua Door Industry Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-10-01
Anticipated expiration: 2031-03-02

Abstract

The application relates to a singly open prevents fire door with pre-buried inflation strip of paper used for sealing, it includes fire prevention door frame and fire prevention door plant, and fire prevention door plant is articulated with fire prevention door frame, and the neighboring parcel of fire prevention door frame has first fire prevention inflation strip of paper used for sealing, is provided with automatic door closer between the upper portion of fire prevention threshold and the upper portion of fire prevention door plant, and one side that self and fire prevention door frame articulated shaft were kept away from to the fire prevention door plant is provided with the lock. This application has the automatic closure who realizes fire door plant, strives for more time of fleing for personnel flee to improve the effect of preventing fire door's safety protection performance.

Description

Single-opening fireproof door with embedded expansion seal

Technical Field

The utility model belongs to the technical field of the fire door technique of preventing, and especially, relate to a singly open fire door with pre-buried inflation strip of paper used for sealing.

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. According to the service function division, can divide into two fire doors, single fire door etc..

Fireproof door requires better fire behavior in the time, also has higher requirement to the leakproofness, for preventing the flue gas diffusion, generally can have one deck fire prevention inflation strip of paper used for sealing at fireproof door's periphery parcel, after taking place the fire disaster, the gap that fire prevention inflation strip of paper used for sealing inflation will prevent between door and the door frame is filled to delay the diffusion velocity of flue gas.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the existing fireproof door generally needs to be closed manually after being opened, and when a fire is in an emergency, the existing fireproof door can occupy the escape time of people when being closed, so that the safety protection performance of the existing fireproof door is influenced. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

For the convenience prevent opening and shutting of fire door to improve the safety protection performance who prevents fire door, the application provides a singly open fire door with pre-buried inflation strip of paper used for sealing.

The application provides a single division of fire door with pre-buried inflation strip of paper used for sealing adopts following technical scheme:

the utility model provides a singly open prevents fire door with pre-buried inflation strip of paper used for sealing, includes fire prevention door frame and fire prevention door plant, fire prevention door plant with fire prevention door frame is articulated, the neighboring parcel of fire prevention door frame has first fire prevention inflation strip of paper used for sealing, the upper portion of fire prevention threshold with be provided with automatic door closer between the upper portion of fire prevention door plant, one side that self and fire prevention door frame articulated shaft were kept away from to fire prevention door plant is provided with the lock.

Through adopting above-mentioned technical scheme, when the conflagration breaing out, the personnel open the back with the lock and push away the fire prevention door plant again, and the fire prevention door plant is automatic closed under automatic door closer's effect, need not the artificial fire prevention door plant of closing, strives for more time of fleing for the personnel flee to prevent fire door and improved the safety protection performance. And the periphery parcel of fire door plant has first fire prevention inflation strip of paper used for sealing, and the inflation takes place for first fire prevention inflation strip of paper used for sealing in high temperature environment to extrude the space between fire door plant and the fire prevention door frame, improved the seal of fire door, delayed the diffusion velocity of flue gas, further improved the safe fire behavior of fire door.

Preferably, the automatic door closing device comprises a telescopic rod, the telescopic rod comprises an outer pipe and an inner rod, the inner rod is in sliding insertion with the outer pipe, an elastic part is arranged in the outer pipe, the inner rod is connected with the elastic part, one end of the outer pipe is hinged to the upper portion of the fireproof door frame, the inner rod penetrates out of the outer pipe, a connecting rod is hinged to one end of the outer pipe, the connecting rod is parallel to the inner rod, and one end of the inner rod is far away from the connecting rod and is fixedly connected with the upper portion of the fireproof door plate.

Through adopting above-mentioned technical scheme, after the fire door plant is opened, interior pole removes towards the direction of keeping away from the intraductal diapire of outer tube under the drive of connecting rod, and the length of expansion link becomes long to make elastic component take place elastic deformation, after personnel pass through the fire door plant, elastic component reconversion rotates in order to drive the fire door plant, thereby makes the automatic closure of fire door plant.

Preferably, the inner diameter of the outer pipe is larger than the diameter of the inner rod, the inner rod is inserted into one end of the outer pipe and fixedly connected with a sliding block, the sliding block is in sliding insertion connection with the outer pipe, the elastic piece is a self-locking spring, the self-locking spring is sleeved on the periphery of the inner rod, and the self-locking spring is fixed between the sliding block and the inner top wall of the outer pipe.

Through adopting above-mentioned technical scheme, when the fire door plant rotates towards the direction of keeping away from the fire door frame, interior pole removes towards the direction of keeping away from the intraductal diapire of outer tube under the drive of connecting rod, and the auto-lock spring is compressed, and after personnel passed through the fire door plant, the auto-lock spring resets and removes towards the direction that is close to the intraductal diapire of outer tube in order to drive interior pole to order about the connecting rod and promote the direction rotation of fire door plant towards being close to the fire door frame, until the fire door plant is closed, realize the auto-lock of fire door plant.

Preferably, the upper portion of the fireproof door plate is fixedly connected with a pressing strip, the pressing strip extends along the width direction of the fireproof door plate, and one end, far away from the inner rod, of the connecting rod is fixedly connected with the pressing strip.

Through adopting above-mentioned technical scheme, through setting up the layering, and the layering extends the setting along the width direction of fire door plant, has indirectly increased the area of contact of connecting rod with the fire door plant to make automatic door closer more easily promote the fire door plant and rotate.

Preferably, the lock includes the wedge, the fire door plant is kept away from self and is opened with one side of fire prevention door frame articulated shaft and has the confession the wedge male slot, the wedge with the slot slides and pegs graft, the wedge with fixedly connected with reset spring between the tank bottom of slot, it has confession wedge male lockhole to open on the fire prevention door frame, be provided with on the fire door plant and be used for the unblock subassembly of wedge.

By adopting the technical scheme, when the wedge block rotates along with the fireproof door plate to abut against the fireproof door frame, the wedge block is pressed to move towards the bottom of the slot, and the wedge block extrudes the return spring; when the fireproof door panel is completely closed, the wedge block is opposite to the lock hole and is inserted into the lock hole under the pushing of the reset spring, so that the closing of the fireproof door panel is kept stable. When the fireproof door plate needs to be opened, the fireproof door plate can be opened by unlocking the wedge block through the unlocking assembly.

Preferably, the unlocking assembly comprises a rotating rod and a flexible steel wire rope, the rotating rod penetrates through the fireproof door panel, the rotating rod is rotatably connected with the fireproof door panel, one end of the flexible steel wire rope is fixedly wound with the part, located in the fireproof door panel, of the rotating rod, and the other end of the flexible steel wire rope penetrates through the groove bottom of the inserting groove and is fixedly connected with the wedge block.

Through adopting above-mentioned technical scheme, rotate the bull stick with flexible wire rope of rolling to drive the wedge and remove until the wedge withdraws from the lockhole towards the direction that is close to the slot tank bottom, make things convenient for opening and shutting of fire door plant.

Preferably, both ends of the rotating rod are fixedly sleeved with limit rings, and the two limit rings are movably abutted to the inner side and the outer side of the fireproof door plate respectively.

Through adopting above-mentioned technical scheme, the axis direction removal of gag ring restriction bull stick along self to make being connected of bull stick and fire door plant firm.

Preferably, a placing groove for closing the fireproof door panel is formed in one side of the fireproof doorsill in a recessed mode, and a second fireproof expansion sealing strip is fixedly connected to the wall of the placing groove.

Through adopting above-mentioned technical scheme, through the cell wall fixedly connected with second fire prevention inflation strip of paper used for sealing at the standing groove, second fire prevention inflation strip of paper used for sealing meets thermal expansion, cooperates the expanded sealed effect of first fire prevention, has further strengthened preventing fire door's seal.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the automatic door closing device is arranged between the upper part of the fireproof doorsill and the upper part of the fireproof door plate, and the fireproof door plate is automatically closed under the action of the automatic door closing device, so that the fireproof door plate does not need to be manually closed, more escape time is strived for escape of people, and the safety protection performance of the fireproof door is improved;

2. when the fireproof door plate rotates towards the direction far away from the fireproof door frame, the inner rod moves under the driving of the connecting rod and extrudes the self-locking spring, and after a person passes through the fireproof door plate, the self-locking spring resets to drive the inner rod to move, so that the connecting rod is driven to push the fireproof door plate to rotate towards the direction close to the fireproof door frame until the fireproof door plate is closed, and the self-locking of the fireproof door plate is realized;

3. through the neighboring parcel at the fire door plant have first fire prevention inflation strip of paper used for sealing, be provided with second fire prevention inflation strip of paper used for sealing in the standing groove, first fire prevention inflation strip of paper used for sealing takes place the inflation with second fire prevention inflation strip of paper used for sealing under high temperature environment to fill the gap between fire door plant and the fire prevention door frame, strengthened the leakproofness of preventing fire door, further improved the safety protection performance of preventing fire door.

Drawings

FIG. 1 is a schematic view of the fire door panel of the present application as it is opened;

fig. 2 is a schematic structural view of the automatic door closing device and the door lock in the present application;

FIG. 3 is an enlarged schematic view of A of FIG. 2 of the present application;

FIG. 4 is an enlarged schematic view of B of FIG. 2 of the present application;

FIG. 5 is a schematic view of the overall structure of the fire door panel of the present application after it has been closed.

Description of reference numerals: 1. a fireproof door frame; 2. a fire door panel; 3. a placement groove; 4. a first fire-resistant intumescent seal; 5. a second fire-resistant intumescent seal; 6. an automatic door closing device; 61. a telescopic rod; 611. an outer tube; 612. an inner rod; 62. a connecting rod; 63. a slider; 64. a self-locking spring; 7. layering; 8. a door lock; 81. a wedge block; 82. a return spring; 83. an unlocking assembly; 831. a rotating rod; 832. a flexible wire rope; 9. a slot; 10. a lock hole; 11. a holding rod; 12. a limit ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses singly open and prevent fire door with pre-buried inflation strip of paper used for sealing. Referring to fig. 1, a single-opening fireproof door with a pre-embedded expansion seal strip comprises a fireproof door frame 1 and a fireproof door plate 2, wherein the fireproof door plate 2 is hinged to the fireproof door frame 1. One side of the fireproof door frame 1 is sunken to be provided with a placing groove 3 for closing the fireproof door plate 2, and the fireproof door plate 2 is matched with the placing groove 3 for use. The peripheral edge parcel of fire door plant 2 has first fire prevention inflation strip of paper used for sealing 4, and standing groove 3 bonds and is fixed with second fire prevention inflation strip of paper used for sealing 5, and the tank bottom and the groove lateral wall of standing groove 3 are covered to second inflation strip of paper used for sealing.

Referring to fig. 1, be provided with automatic door closer 6 between the upper portion of fire door plant 2 and the upper portion of fire door frame 1, automatic door closer 6 is located fire door plant 2 and keeps away from one side of self and 1 articulated shaft of fire door frame, and one side that fire door plant 2 kept away from self and 1 articulated shaft of fire door frame still is provided with lock 8, and lock 8 is located the middle part of fire door plant 2.

Referring to fig. 2 and 3, the automatic door closing device 6 includes a telescopic rod 61, the telescopic rod 61 includes an outer tube 611 and an inner rod 612, the inner rod 612 is slidably inserted into the outer tube 611, the bottom end of the outer tube 611 is hinged to the upper portion of the fireproof door frame 1, and the rotation plane of the outer tube 611 is horizontally disposed. The end of the inner rod 612 penetrating through the outer tube 611 is hinged with a connecting rod 62, the connecting rod 62 is located below the telescopic rod 61, the rotating plane of the connecting rod 62 is parallel to the rotating plane of the telescopic rod 61, and the end of the connecting rod 62 far away from the inner rod 612 is fixedly connected with the upper part of the fireproof door panel 2.

Referring to fig. 3, the diameter of the outer tube 611 is larger than that of the inner rod 612, the slider 63 is fixedly connected to one end of the inner rod 612 inserted into the outer tube 611, and the slider 63 is slidably connected to the inner side wall of the outer tube 611. An elastic part is arranged between the sliding block 63 and the inner top wall of the outer tube 611, the elastic part is a self-locking spring 64, the self-locking spring 64 is sleeved on the periphery of the inner rod 612, and the self-locking spring 64 is fixed between the sliding block 63 and the inner top wall of the outer tube 611. When the fireproof door panel 2 rotates towards the direction far away from the fireproof door frame 1, the inner rod 612 moves towards the direction far away from the inner bottom wall of the outer tube 611 under the driving of the connecting rod 62, and the self-locking spring 64 is pressed; after the person passes through the fire door panel 2, the self-locking spring 64 is reset to drive the inner rod 612 to move towards the direction close to the inner bottom wall of the outer tube 611, so as to drive the connecting rod 62 to move to close the fire door panel 2.

Referring to fig. 3, the upper portion of the fire door panel 2 is further fixedly connected with a pressing strip 7, the pressing strip 7 extends along the length direction of the fire door panel 2, and one end of the connecting rod 62 far away from the inner rod 612 is fixedly connected with the middle portion of the pressing strip 7. By arranging the pressing strip 7, the automatic door closing device 6 can drive the fireproof door panel 2 to rotate more easily.

Referring to fig. 2 and 4, the door lock 8 includes a wedge block 81, one side of the fireproof door panel 2 far away from the hinge shaft of the fireproof door frame 1 is provided with a slot 9 for inserting the wedge block 81, the wedge block 81 is inserted into the slot 9 in a sliding manner, a return spring 82 is fixedly connected between the wedge block 81 and the slot bottom of the slot 9, and the fireproof door frame 1 is provided with a locking hole 10 for inserting the wedge block right opposite to the wedge block 81. The inclined plane of wedge 81 sets up towards fire prevention door frame 1, and the one end that the inclined plane of wedge 81 is close to fire prevention door frame 1 is the low end, and there is the coincidence in the rotation path of wedge 81 and fire prevention door frame 1. An unlocking component 83 for unlocking the wedge block 81 is arranged on the fireproof door panel 2.

Referring to fig. 4, the unlocking assembly 83 includes a rotating rod 831 and a flexible steel wire rope 832, the rotating rod 831 penetrates through the fire-proof door panel 2 and is rotatably connected with the fire-proof door panel 2, one end of the flexible steel wire rope 832 is fixedly wound with the portion of the rotating rod 831 located in the fire-proof door panel 2, and the other end of the flexible steel wire rope 832 penetrates through the bottom of the slot 9 and is fixedly connected with one end of the wedge block 81 inserted into the slot 9. The return spring 82 is sleeved on the periphery of the flexible steel wire rope 832, and a cavity for the flexible steel wire rope 832 to move is arranged in the fireproof door panel 2. The wedge block 81 can be pulled out from the lock hole 10 by rotating the rotating rod 831 to wind the flexible steel wire rope 832, thereby facilitating the opening and closing of the fireproof door panel 2.

Referring to fig. 5, the outer circumferential surfaces of both ends of the rotating rod 831 are fixedly connected with the holding rods 11, and the axis of the holding rods 11 is perpendicular to the axis of the rotating rod 831.

Referring to fig. 5, two ends of the rotating rod 831 are respectively fixed with a limiting ring 12 in a sleeved manner, the two limiting rings 12 are located between the two holding rods 11, and the two limiting rings 12 are respectively in rotational abutting connection with the inner and outer side walls of the fire door panel 2. The connecting of the rotating rod 831 and the fireproof door panel 2 is kept stable by the limiting ring 12.

The implementation principle of the single-opening fireproof door with the embedded expansion sealing strip is as follows: when a fire occurs, the rotating lever 831 is rotated by the grip 11 to unlock the wedge 81, and the fire door panel 2 is opened. When the fireproof door panel 2 rotates towards the direction far away from the fireproof door frame 1, the connecting rod 62 rotates along with the fireproof door panel 2, so that the inner rod 612 is driven to move, and the self-locking spring 64 is pressed. After the personnel pass through fire door plant 2, self-locking spring 64 resets and removes in order to drive interior pole 612, and interior pole 612 removes and drives the connecting rod 62 and remove to order about fire door plant 2 to rotate towards the direction that is close to fire door frame 1.

When the wedge 81 follows fire door plant 2 and moves to with fire door frame 1 butt, wedge 81 pressurized and move towards the direction that is close to slot 9 tank bottom, and reset spring 82 is pressurized, and after fire door plant 2 was closed completely, wedge 81 inserted in lockhole 10 under reset spring 82's promotion to realize fire door plant 2's auto-lock. The whole process does not need to manually close the fireproof door plate 2, and time is strived for escape of people, so that the safety protection performance of the fireproof door is improved.

And the peripheral edge parcel of fire door plant 2 has first fire prevention inflation strip of paper used for sealing 4, is provided with second fire prevention inflation strip of paper used for sealing 5 in the standing groove 3, and first fire prevention inflation strip of paper used for sealing 4 takes place the inflation with second fire prevention inflation strip of paper used for sealing 5 under high temperature environment to fill the gap between fire door plant 2 and the fire prevention door frame 1, strengthened fire door's leakproofness, delayed the diffusion velocity of flue gas, further improved fire door's safety protection performance.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a singly open prevents fire door with pre-buried inflation strip of paper used for sealing, includes fire prevention door frame (1) and fire prevention door plant (2), fire prevention door plant (2) with fire prevention door frame (1) is articulated, its characterized in that: the utility model discloses a fire prevention door frame, including fire prevention door frame (1), fire prevention door frame (2), fire prevention door frame's (1) neighboring parcel has first fire prevention inflation strip of paper used for sealing (4), the upper portion of fire prevention threshold with be provided with automatic door closer (6) between the upper portion of fire prevention door plant (2), one side that self and fire prevention door frame (1) articulated shaft were kept away from in fire prevention door plant (2) is provided with lock (8).

2. The single-opening fireproof door with the embedded expansion seal as claimed in claim 1, characterized in that: the automatic door closing device (6) comprises an expansion rod (61), the expansion rod (61) comprises an outer pipe (611) and an inner rod (612), the inner rod (612) is in sliding insertion connection with the outer pipe (611), an elastic part is arranged in the outer pipe (611), the inner rod (612) is connected with the elastic part, one end of the outer pipe (611) is hinged to the upper portion of the fireproof door frame (1), the rotating plane of the outer pipe (611) is horizontal, one end, penetrating out of the outer pipe (611), of the inner rod (612) is hinged to a connecting rod (62), the rotating plane of the connecting rod (62) is parallel to the rotating plane of the outer pipe (611), and one end, far away from the inner rod (612), of the connecting rod (62) is fixedly connected with the upper portion of the fireproof door panel (2).

3. The single-opening fireproof door with the embedded expansion seal as claimed in claim 2, characterized in that: the inner diameter of the outer pipe (611) is larger than the diameter of the inner pipe (612), one end, inserted into the outer pipe (611), of the inner pipe (612) is fixedly connected with a sliding block (63), the sliding block (63) is in sliding insertion connection with the outer pipe (611), the elastic piece is a self-locking spring (64), the self-locking spring (64) is sleeved on the periphery of the inner pipe (612), and the self-locking spring (64) is fixed between the sliding block (63) and the inner top wall of the outer pipe (611).

4. The single-opening fireproof door with the embedded expansion seal as claimed in claim 2, characterized in that: the upper portion fixedly connected with layering (7) of fire door board (2), layering (7) are followed the width direction of fire door board (2) extends the setting, connecting rod (62) are kept away from the one end of interior pole (612) with layering (7) fixed connection.

5. The single-opening fireproof door with the embedded expansion seal as claimed in claim 1, characterized in that: lock (8) include wedge (81), keep away from one side of self and fire door frame (1) articulated shaft in fire door plant (2) and open and have the confession wedge (81) male slot (9), wedge (81) with slot (9) slip is pegged graft, wedge (81) with fixedly connected with reset spring (82) between the tank bottom of slot (9), it has confession wedge (81) male lockhole (10) to open on fire door frame (1), be provided with on fire door plant (2) and be used for the unblock subassembly (83) of wedge (81).

6. The single-opening fireproof door with the embedded expansion seal as claimed in claim 5, wherein: unblock subassembly (83) include bull stick (831) and flexible wire rope (832), bull stick (831) pierce through fire door plant (2), bull stick (831) with fire door plant (2) are rotated and are connected, the one end of flexible wire rope (832) with bull stick (831) are located partly wiring in fire door plant (2) is fixed, the other end of flexible wire rope (832) pierces through the tank bottom of slot (9) and with wedge (81) fixed connection.

7. The single-opening fireproof door with the embedded expansion seal as claimed in claim 6, wherein: two ends of the rotating rod (831) are fixedly sleeved with limiting rings (12), and the two limiting rings (12) are movably abutted to the inner side and the outer side of the fireproof door panel (2) respectively.

8. The single-opening fireproof door with the embedded expansion seal as claimed in claim 1, characterized in that: one side of the fireproof doorsill is sunken with a placing groove (3) for closing the fireproof door plate (2), and the groove wall of the placing groove (3) is fixedly connected with a second fireproof expansion sealing strip (5).