CN214330424U - Fireproof airtight door - Google Patents

Abstract

A fireproof airtight door relates to the technical field of airtight doors. It comprises the following steps: a door frame; a door leaf fitted with the door frame; the pressing mechanism is arranged on the inner side of the door leaf and moves towards the side close to or far away from the door frame so as to press or decompress the door leaf tightly on the door frame; the opening and closing hand wheel is arranged on the outer side of the door leaf, one end of the opening and closing hand wheel is connected with the pressing mechanism, and the opening and closing hand wheel is used for controlling the pressing mechanism to lock or unlock the door leaf; the lock is arranged on the door leaf close to the pressing mechanism and used for locking the pressing mechanism when the door leaf is in a locking state; and the quick opening mechanism is close to the pressing mechanism and is arranged on the inner side of the door leaf of the lock, and the quick opening mechanism is used for driving the pressing mechanism to move towards the unlocking direction after the pressing mechanism is unlocked. By adopting the technical scheme, the door opening device has the advantages of simple and convenient operation and simple mechanism, realizes the effect of opening the door quickly indoors, and can well meet the fire-fighting escape requirement.

Description

Fireproof airtight door

Technical Field

The utility model relates to a sealed door technical field, concretely relates to fire prevention sealed door.

Background

The fireproof airtight door is a door which can increase air tightness and has a fireproof effect. The fire-fighting access channel is commonly used for places with fire-fighting hidden dangers, such as waste incineration plants, electronic chemical industry plants, warehouses, closed compartments and the like.

The existing fireproof airtight door generally comprises a pressing mechanism arranged on the inner side of a door leaf; the turntable is arranged at the outer side of the door leaf at one end, penetrates through the door leaf and is arranged at the inner side of the door leaf at one end and is connected with the pressing mechanism; and the lockset is used for locking or unlocking the fixed rotary disc, when the door needs to be opened, the rotary disc is firstly unlocked through the lockset, and then the pressing mechanism is unlocked through the rotary disc, but the door opening operation is relatively complex when the door is opened indoors, and the self-rescue opportunity is probably missed when emergency happens indoors, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a fire prevention airtight door, have the indoor easy and simple to handle that opens the door, the simple advantage of mechanism, realized the indoor effect of opening the door fast, can satisfy the fire control requirement of fleing well.

In order to achieve the above object, the utility model adopts the following technical scheme: a fire rated containment door, comprising: a door frame; a door leaf fitted with the door frame; the pressing mechanism is arranged on the inner side of the door leaf and moves towards the side close to or far away from the door frame so as to press or decompress the door leaf tightly on the door frame; the opening and closing hand wheel is arranged on the outer side of the door leaf, one end of the opening and closing hand wheel is connected with the pressing mechanism, and the opening and closing hand wheel is used for controlling the pressing mechanism to lock or unlock the door leaf; the lock is arranged on the door leaf close to the pressing mechanism and used for locking the pressing mechanism when the door leaf is in a locking state; and the quick opening mechanism is close to the pressing mechanism and is arranged on the inner side of the door leaf of the lock, and the quick opening mechanism is used for driving the pressing mechanism to move towards the unlocking direction after the pressing mechanism is unlocked.

Hold-down mechanism is last to correspond the tool to lock is provided with limit structure, quick-opening mechanism includes: the sliding block is arranged on the limiting structure in a sliding mode and is used for being matched with or not matched with the lock to lock or unlock the pressing mechanism; the first elastic piece is arranged on the sliding block and the limiting structure and used for resetting the sliding block under the action of self restoring force; the driving component is movably arranged on the door leaf corresponding to the pressing mechanism and is in transmission connection with the sliding block; the driving assembly drives the sliding block to be disengaged from the lock, and then drives the pressing mechanism to move towards the unlocking direction to unlock the door leaf.

The last connecting rod dog that is provided with of hold-down mechanism, drive assembly includes: one end of the pull rope is connected to the sliding block; the supporting seat is fixedly arranged on the inner side of the door leaf and is close to the connecting rod stop block; one end of the pressure lever is rotatably assembled on the supporting seat, and the other end of the pressure lever is arranged corresponding to the connecting rod stop block and is connected with the free end of the pull rope; the pressing rod rotates relative to the supporting seat, the pull rope is pulled to drive the sliding block to slide relative to the limiting structure, and after the pressing rod is disengaged from the lock, the pressing rod is pressed on the connecting rod stop block to drive the pressing mechanism to move towards the door leaf unlocking direction.

The supporting seat includes: a fixing part fixedly assembled on the door leaf; the fixed shaft is fixedly assembled at one end of the fixed part, is parallel to the connecting rod stop block and is used for mounting the pressure rod; and a pressure bar limiting part arranged on the fixed shaft.

The drive assembly further includes: one end of the second elastic part is connected to the pressure rod, the other end of the second elastic part is connected to the inner side of the door leaf, and the second elastic part is used for resetting the pressure rod under the action of self restoring force.

A sliding groove is formed in the sliding block in the unlocking direction, and a guide pin penetrates through the sliding groove and is installed on the pressing mechanism.

The fire-resistant containment door further comprises: and the sliding block is sequentially movably inserted into the limiting structure and the first elastic piece in the sliding direction of the sliding block and is fixed on a guide rod at one end of the sliding block.

The hold-down mechanism includes: the rotary disc is arranged on the inner side of the door leaf, is in transmission connection with the switch hand wheel and synchronously rotates; the pressing blocks are arranged on the inner side of the door leaf and positioned on the peripheral side of the door leaf;

a first connecting rod, one end of which is rotatably assembled on the pressing block, and the other end of which is rotatably assembled on the turntable; the supporting column is assembled on the inner side of the door leaf corresponding to the pressing block and used for assembling the pressing block; the second connecting rod is rotatably assembled on the plurality of pressing blocks on the same side; the periphery of the door frame is provided with a pressing chute for the pressing block to be clamped and embedded so as to enable the door leaf to be pressed on the door frame.

And a self-lubricating copper sleeve is arranged at one end of the pressing block, which is embedded with the door frame in a clamping manner.

Sealing rubber strips are embedded around the door frame, fireproof rubber strips are embedded around the door leaf, and fireproof materials are filled in the door leaf.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. through setting up the quick-opening mechanism in the door leaf, realized the effect that one step was opened rapidly. When an indoor emergency needs to open the door quickly, the pressing rod is pressed downwards, rotates relative to the fixed shaft, pulls the pull rope to drive the sliding block to slide relative to the limiting structure until the sliding block is disengaged from the lock, the pressing rod is in contact with the connecting rod stop block and drives the second connecting rod to move downwards in the pressing process, so that the pressing block swings relative to the supporting shaft and is gradually separated from the pressing chute, the door leaf is unlocked, the door leaf is pushed finally, the door can be opened, the indoor quick door opening effect is achieved, and the fire escape requirement can be well met. The door opening device has the advantages of being simple and convenient to operate in an indoor door opening mode, simple in mechanism and high in safety.

2. Through set up in the joint strip of door frame week side, set up the fire prevention adhesive tape in the door leaf to and fill the fire-proof material in the door leaf, strengthened indoor leakproofness, strengthened the fire behavior of door leaf simultaneously.

3. The pressing mechanism is formed by the pressing block, the first connecting rod, the second connecting rod and the rotary table, the pressing force is guaranteed, the structure is simplified, the production cost is reduced, the production is convenient, and therefore the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of a first structure of the present invention;

FIG. 2 is a schematic view of the present invention with the door leaf, hand wheel and heavy duty hinge removed;

FIG. 3 is an enlarged view corresponding to detail A in FIG. 2;

FIG. 4 is an enlarged view corresponding to detail B in FIG. 2;

fig. 5 is a longitudinal sectional view of the present invention;

FIG. 6 is an enlarged view corresponding to detail C in FIG. 5;

fig. 7 is a transverse cross-sectional view of the present invention;

fig. 8 is an enlarged view corresponding to detail D in fig. 7.

Description of reference numerals: 1. a door frame; 11. sealing rubber strips; 2. a door leaf; 21. an outer panel; 22. an inner panel; 23. a fire-resistant material; 24. a fireproof adhesive tape; 25. a heavy duty hinge; 3. a hold-down mechanism; 31. a turntable; 32. briquetting; 321. self-lubricating copper bush; 33. a first link; 34. a support pillar; 341. a guide sleeve; 35. a second link; 351. a connecting rod stopper; 4. opening and closing a hand wheel; 41. a shaft sleeve; 42. a high temperature resistant seal ring; 43. a shaft portion; 5. a quick-opening mechanism; 51. a slider; 511. a guide pin; 512. a chute; 52. a first elastic member; 53. a drive assembly; 531. pulling a rope; 532. a supporting seat; 5321. a fixed part; 5322. a fixed shaft; 5323. a pressure lever limiting part; 533. a pressure lever; 5331. installing a sleeve; 5332. a strut; 5333. a hand-held wand; 534. a second elastic member; 57. a guide bar; 58. a limiting structure; 6. a lock device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The present embodiment relates to a fire-proof airtight door, as shown in fig. 1, 2, 6, and 7, including: the door comprises a door frame 1, a door leaf 2, a pressing mechanism 3, a switch hand wheel 4, a lockset 6 and a quick-opening mechanism 5.

Wherein the door leaf 2 is assembled with the door frame 1. The hold-down mechanism 3 is mounted inside the door leaf 2. The pressing mechanism 3 is used to move toward or away from the door frame 1 to press or decompress the door leaf 2 against the door frame 1. The switch hand wheel 4 is arranged on the outer side of the door leaf 2, and one end of the switch hand wheel penetrates through the door leaf 2 and is connected with the pressing mechanism 3. The switch hand wheel 4 is used for controlling the pressing mechanism 3 to lock or unlock the door leaf 2. A shaft sleeve 41 is arranged between the hand wheel and the door leaf 2, and a high-temperature-resistant sealing ring 42 is arranged between the shaft sleeve 41 and a shaft part 43 of the hand wheel. The lock 6 is installed on the door leaf 2 close to the hold-down mechanism 3, and the lock 6 is used for locking the hold-down mechanism 3 when the door leaf 2 is in a locking state. The quick-opening mechanism 5 is arranged on the inner side of the door close to the pressing mechanism 3 and the lock 6, and the quick-opening mechanism 5 is used for driving the pressing mechanism 3 to move towards the unlocking direction after the pressing mechanism 3 is unlocked on the inner side of the door leaf 2 so as to unlock the door leaf 2.

The tool to lock 6 is mechanical key lock, and the user can be unblanked through the key in the door leaf 2 outside to unblock hold-down mechanism 3, then rotate switch hand wheel 4 with hold-down mechanism 3 unblock on door frame 1, and then open door leaf 2 and get into indoorly. When the user meets emergency indoors, the pressing mechanism 3 can be unlocked by the quick opening mechanism 5 step by step on the lockset 6 and the doorframe 1, and the effect of quickly opening the door is achieved.

Further, as shown in fig. 6, the door leaf 2 includes: outer panel 21, inner panel 22, fire-blocking material 23 and fire-blocking strip 24.

The outer panel 21 is welded to the inner panel 22, and an accommodating cavity is formed therebetween, and the accommodating cavity is filled with a fireproof material 23. A fire-proof rubber strip 24 is embedded on one side of the inner panel 22 contacting the door frame 1, and is used for pressing against the door frame 1 when the door leaf 2 is closed to enhance the indoor airtightness and enhance the fire-proof performance. In order to realize the rotating assembly of the door leaf 2 and the door frame 1, two heavy hinges 25 are installed on one side of the door frame 1, and the heavy hinges 25 can bear the weight of the door leaf 2 and can also enable the door leaf 2 to freely rotate so as to realize flexible opening and closing. Preferably, the pin shaft of the heavy hinge 25 is made of 304 stainless steel with the diameter of 20mm, so that good corrosion resistance and strength are ensured. The outer panel 21 is formed by rolling a 4mm thick Q235 (carbon structural steel) steel plate, and four corners thereof are in arc transition. The inner panel 22 is made of a galvanized steel sheet having a thickness of 1.5 mm.

Furthermore, sealing rubber strips 11 are embedded around the door frame 1, and four corners of the door frame are in arc transition. Preferably, the joint strip 11 is a silicone foam joint strip 11. The door frame 1 is formed by rolling 10 # channel steel or steel plates.

As shown in fig. 2 and 3, the pressing mechanism 3 includes: turntable 31, briquetting 32, first connecting rod 33, support column 34 and second connecting rod 35.

Wherein, carousel 31 sets up in door leaf 2 inboard, and the one end of switch hand wheel 4 passes door leaf 2 and is connected with carousel 31 transmission to rotate with carousel 31 synchronous. The pressing pieces 32 are provided in plural, and are respectively provided inside the door leaf 2 and on the periphery side thereof. Preferably, four pressing pieces 32 are provided, which are symmetrically disposed around the door leaf 2, respectively, to press the door leaf 2 from four directions. The self-lubricating copper bush 321 at one end of the pressing block 32, which is embedded in the door frame 1, has the advantages of small friction force and reliable pressing. One end of the first link 33 is rotatably mounted on the pressing block 32, and the other end is rotatably mounted on the turntable 31. The connection of the first connecting rod 33 with the pressing block 32 and the rotating disc 31 is realized through connecting pins. The supporting column 34 is assembled inside the door leaf 2 corresponding to the pressing block 32, and the pressing block 32 is rotatably assembled on the supporting column 34. Preferably, the supporting column 34 is made of solid round steel with the diameter of 40mm, so that the supporting strength of the pressing block 32 in the pressing process is guaranteed. Two ends of the second connecting rod 35 are respectively rotatably assembled with the two pressing blocks 32, and the second connecting rod is used for connecting the pressing blocks 32 on the same side. The periphery of the door frame 1 is provided with a pressing chute for the pressing block 32 to be embedded in a clamping manner so as to press the door leaf 2 on the door frame 1. When the door leaf 2 is compressed, the pressing block 32 is pressed into the compression chute, and the compression chute inclines towards one side deep into the door frame 1, so that the pressing block 32 is pressed more and more tightly when compressed.

When the switch hand wheel 4 is rotated, the rotary disc 31 rotates to drive the first connecting rod 33 and the second connecting rod 35 to rotate, so that each pressing block 32 rotates around the supporting column 34 where the pressing block is located to slide out along the pressing inclined groove and separate from the door frame 1, the door leaf 2 is unlocked, and finally the hand wheel is pulled to enable the door leaf 2 to rotate relative to the door frame 1 to be opened. Closing the door leaf 2 is the same.

Further, the quick-opening mechanism 5 includes: a slider 51, a first elastic member 52, a driving assembly 53, and a guide rod 57.

A limiting structure 58 is fixedly arranged on the second connecting rod 35 corresponding to the lockset 6. The limit structure 58 is a U-shaped frame and opens towards the lock 6. The sliding block 51 is slidably mounted on the limiting structure 58, and can slide corresponding to the sliding block 51 to be matched with or separated from the lock 6, so as to lock or unlock the pressing mechanism 3. The first elastic member 52 is installed between the slider 51 and the stopper structure 58 and serves to restore the slider 51 under its own restoring force. The driving component 53 is movably mounted on the door leaf 2 corresponding to the second connecting rod 35 and is in transmission connection with the sliding block 51. After the driving assembly 53 drives the sliding block 51 to be disengaged from the lock 6, the pressing mechanism 3 is driven to move towards the unlocking direction to unlock the door leaf 2. The guide rod 57 is inserted into the limiting structure 58 and the first elastic element 52 in sequence along the sliding direction of the slider 51 and then fixed to one end of the slider 51. Preferably, the first elastic member 52 is a spring.

Further, in order to make the sliding direction of the slider 51 more stable, the guiding slider 51 is provided with a sliding slot 512 along the unlocking direction, the second connecting rod 35 is provided with a guiding pin 511 corresponding to the sliding slot 512, and one end of the guiding pin 511 penetrates into the sliding slot 512 and slides relative to the sliding slot 512 after the slider 51 slides so as to guide and limit the sliding of the slider 51.

Further, as shown in fig. 2-5, the driving assembly 53 includes: a pull rope 531, a support base 532, a pressing rod 533 and a second elastic piece 534.

One end of the pull rope 531 is connected to the slider 51 at a side away from the lock 6, and the other end is connected to the pressing rod 533. The second link 35 is provided with a link stopper 351. The support base 532 is fixedly installed inside the door 2 and is disposed close to the link stopper 351. One end of the pressing rod 533 is rotatably assembled on the supporting seat 532, and the other end is disposed corresponding to the connecting rod stopper 351. One end of the second elastic member 534 is connected to the pressing rod 533, and the other end is connected to the inner side of the door leaf 2, and the second elastic member 534 is used for resetting the pressing rod 533 under the self-restoring force. Preferably, the second elastic member 534 is a spring.

The support pillar 34 is further provided with a guide sleeve 341, and the pressing block 32 is provided on the guide sleeve 341 so as to move freely during the swinging process. Preferably, the pressing block 32 is connected with the first connecting rod 33 and the sliding block 51 by using a 304 stainless steel cylindrical pin with the diameter of 10mm, so that the corrosion resistance is good and the connection strength is sufficient.

The pressing rod 533 rotates relative to the supporting seat 532, and pulls the pulling rope 531 to drive the sliding block 51 to slide relative to the limiting structure 58, and after being disengaged from the lock 6, presses the connecting rod stopper 351 to drive the pressing mechanism 3 to move in the unlocking direction of the door leaf 2.

The support base 532 includes: a fixing portion 5321, a fixing shaft 5322 and a pressure lever limiting portion 5323.

The fixing portion 5321 is fixed to the door leaf 2 by screws. The fixing shaft 5322 is fixedly fitted to one end of the fixing portion 5321, and the fixing shaft 5322 is parallel to the link stopper 351 and is used for mounting the pressing rod 533. The pressing lever limiting portion 5323 is disposed on the fixing shaft 5322 and is used to limit the installation position of the pressing lever 533. Preferably, the pressing bar stopper 5323 is integrally formed with the fixing shaft 5322.

The pressing lever 533 includes: mounting sleeves 5331, struts 5332 and hand-held rods 5333. The mounting sleeve 5331 is rotatably mounted in the fixed shaft 5322, and the supporting rod 5332 is disposed between the mounting sleeve 5331 and the handheld rod 5333 for connecting the two. The link stopper 351 is formed in a rod shape extending perpendicularly to one side of the first link 33. The rod 5332 extends to a position higher than the link stop 351 along a side perpendicular to the link stop 351, and then bends toward a side away from the door leaf 2, so as to contact the link stop 351 when the pressing rod 533 presses down, and drive the second link 35 to press down.

The working principle of the utility model is as follows: when an emergency situation occurs indoors and the door needs to be opened rapidly, only the pressing rod 533 needs to be pressed downwards, the pressing rod 533 rotates relative to the fixing shaft 5322, the pulling rope 531 is pulled to drive the sliding block 51 to slide relative to the limiting structure 58 until the sliding block is disengaged from the lock 6, the pressing rod 533 is in contact with the connecting rod stop block 351 and drives the second connecting rod 35 to move downwards in the pressing process, so that the pressing block 32 swings relative to the supporting shaft and gradually breaks away from the pressing chute, the door leaf 2 is unlocked, the door leaf 2 is pushed finally, the door can be opened, and the effect of one-step rapid opening is achieved.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. A fire rated containment door, comprising: a door frame (1);

a door leaf (2) assembled with the door frame (1);

the pressing mechanism (3) is arranged on the inner side of the door leaf (2) and moves towards one side close to or far away from the door frame (1) so as to press or uncompress the door leaf (2) on the door frame (1);

a switch hand wheel (4) which is arranged on the outer side of the door leaf (2), one end of which is connected with the pressing mechanism (3) and is used for controlling the pressing mechanism (3) to lock or unlock the door leaf (2);

a lock (6) which is arranged on the door leaf (2) close to the hold-down mechanism (3) and is used for locking the hold-down mechanism (3) when the door leaf (2) is in a locking state; and the number of the first and second groups,

and the quick opening mechanism (5) is arranged at the inner side of the door leaf (2) close to the pressing mechanism (3) and the lock (6) and is used for driving the pressing mechanism (3) to move towards the unlocking direction after the pressing mechanism (3) is unlocked.

2. Fireproof airtight door according to claim 1, characterized in that, a limit structure (58) is provided on the hold-down mechanism (3) corresponding to the lock (6), and the quick-opening mechanism (5) comprises:

the sliding block (51) is arranged on the limiting structure (58) in a sliding mode and is used for being matched with or not matched with the lock (6) to lock or unlock the pressing mechanism (3);

the first elastic piece (52) is arranged on the sliding block (51) and the limiting structure (58) and is used for resetting the sliding block (51) under the action of self restoring force; and the number of the first and second groups,

the driving component (53) is movably arranged on the door leaf (2) corresponding to the pressing mechanism (3) and is in transmission connection with the sliding block (51);

the driving assembly (53) drives the sliding block (51) to be disengaged from the lockset (6) and then drives the pressing mechanism (3) to move towards the unlocking direction so as to unlock the door leaf (2).

3. Fireproof containment door according to claim 2, characterized in that the hold-down mechanism (3) is provided with a link stop (351), the drive assembly (53) comprising: a pull rope (531) having one end connected to the slider (51);

a support base (532) fixedly installed on the inner side of the door leaf (2) and close to the connecting rod stop block (351);

a pressure lever (533) with one end rotatably assembled on the support base (532), one end arranged corresponding to the connecting rod stopper (351) and connected with the free end of the pull rope (531);

the pressing rod (533) rotates relative to the supporting seat (532), the pulling rope (531) is pulled to drive the sliding block (51) to slide relative to the limiting structure (58), and after the pressing rod is disengaged from the lock (6), the pressing rod is pressed on the connecting rod stop block (351) to drive the pressing mechanism (3) to move towards the unlocking direction of the door leaf (2).

4. The flameproof containment door of claim 3, wherein the support base (532) comprises: a fixing part (5321) fixedly assembled on the door leaf (2);

a fixed shaft (5322) which is fixedly assembled at one end of the fixed part (5321), is parallel to the connecting rod stop block (351) and is used for installing the pressing rod (533); and the number of the first and second groups,

a pressure bar limiting part (5323) arranged on the fixed shaft (5322).

5. The fire containment door according to claim 3 or 4, characterized in that said driving assembly (53) further comprises: and the second elastic piece (534) is connected with the pressing rod (533) at one end and connected with the inner side of the door leaf (2) at the other end and is used for resetting the pressing rod (533) under the action of self restoring force.

6. Fireproof sealing door according to claim 2, characterised in that the sliding block (51) is provided with a sliding slot (512) in the unlocking direction, through which sliding slot (512) a guide pin (511) mounted on the hold-down mechanism (3) is passed.

7. The fire containment door of claim 6, further comprising: the limiting structure (58) and the first elastic piece (52) are sequentially movably inserted in the sliding direction of the sliding block (51) and fixed on a guide rod (57) at one end of the sliding block (51).

8. Fireproof containment door according to claim 1, characterized in that the hold-down mechanism (3) comprises: the rotary disc (31) is arranged on the inner side of the door leaf (2), is in transmission connection with the switch hand wheel (4) and synchronously rotates;

a plurality of pressing blocks (32) which are arranged at the inner side of the door leaf (2) and are positioned at the peripheral side of the door leaf;

a first connecting rod (33) with one end rotatably assembled on the pressing block (32) and the other end rotatably assembled on the turntable (31); and the number of the first and second groups,

a support column (34) which is arranged on the inner side of the door leaf (2) corresponding to the pressing block (32) and is used for assembling the pressing block (32);

a second link (35) rotatably mounted to the plurality of press blocks (32) on the same side;

the periphery of the door frame (1) is provided with a pressing chute for clamping and embedding the pressing block (32) so as to enable the door leaf (2) to be pressed on the door frame (1).

9. The flameproof containment door of claim 8, wherein the press block (32) has a self-lubricating copper sleeve (321) mounted on the end that engages with the door frame (1).

10. The fireproof airtight door of claim 9, wherein sealing rubber strips (11) are embedded around the door frame (1), fireproof rubber strips (24) are embedded around the door leaf (2), and fireproof materials (23) are filled inside the door leaf (2).

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