CN211692171U

CN211692171U - Single-leaf protective fireproof airtight door

Info

Publication number: CN211692171U
Application number: CN202020216450.5U
Authority: CN
Inventors: 储群群; 仰新云
Original assignee: Sichuan Xudong Civil Air Defence Equipment Co ltd
Current assignee: Sichuan Xudong Civil Air Defence Equipment Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-16
Anticipated expiration: 2030-02-26

Abstract

The utility model relates to a single fan protection fire prevention airtight door, it includes the door frame and articulates the door leaf in the door frame, the door frame is rectangle frame column structure, encircles the annular has been seted up to the door frame, the door frame can block and locate or break away from the annular, the annular is towards the outdoor central opening with the door frame, the cell wall card that the annular is on a parallel with the central axis direction distribution of door frame rectangle frame form is followed to the sealing strip. The utility model discloses to the relative preferred of shutoff effect of smog.

Description

Single-leaf protective fireproof airtight door

Technical Field

The utility model belongs to the technical field of the fire door technique and specifically relates to a single protection fire prevention airtight door is related to.

Background

A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation within a certain period of time. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof subareas, evacuation staircases, vertical shafts and the like. But present fire door adopts when carrying out the assembled joint more, adopts the welding mode to carry out fixed connection more, leaves a lot of solder joints on fire door surface easily, leads to fire door surface appearance to receive the influence.

In order to solve the technical problems, in the prior art, a chinese patent with publication number CN206681635U discloses a reinforced fire door without welding points, which has the technical key points that: including first door plant and second door plant, first door plant include first panel and with first panel second end perpendicular fixed connection's first curb plate, the second door plant include the second panel and with second panel first end perpendicular fixed connection's second curb plate, first panel first end tip is equipped with solid first "U" shape slot, second curb plate top be equipped with second curb plate top perpendicular fixed connection and slidable insert to the first strip that inserts in "U" shape slot, second panel second end tip has set firmly second "U" shape slot, first curb plate bottom be equipped with first curb plate bottom perpendicular fixed connection and slidable insert to the second in "U" shape slot insert the strip.

The above prior art solutions have the following drawbacks: prevent fire door when using, not only have higher requirement to fire resistance and heat-proof quality of preventing fire door, simultaneously, when the conflagration breaing out, still require it to have certain separation effect to smog, reduce the smog that enters into escape way, influence personnel in the safe corridor and flee from, this technical scheme is when using, because only done certain design to the structure of door plant itself, but do not explain from its clearance loss to how to reduce smog, simultaneously when the high temperature, can make door frame and door plant produce the deformation, lead to the clearance increase between wall body and door frame and the door plant, the shutoff effect to smog is returned and is obviously further reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a single-leaf protection fire prevention airtight door, its shutoff effect preferred relatively to smog.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a single fan protection fire prevention airtight door, includes the door frame and articulates the door leaf in the door frame, the door frame is rectangle frame column structure, encircles the annular has been seted up to the door frame, the door frame can block and locate or break away from the annular, the annular is towards the central opening outdoor and door frame, the cell wall card that the annular is on a parallel with the central axis direction distribution of door frame rectangle frame form is followed to the sealing strip.

Through adopting above-mentioned technical scheme, when using, the lamella card is located in the annular, can effectually increase the path length that smog passes through from the clearance between lamella and the door frame through the annular, reduce the speed of infiltration smog release, thereby can effectually reduce the probability that smog passes through the clearance between lamella and the door frame, two sealing strips can effectually do the shutoff to the clearance between lamella and the door frame simultaneously, two sealing strips distribute along the direction that is on a parallel with the door frame central axis, can do many times to the infiltration of smog, with the possibility that reduces smog infiltration, thereby reduce the flow of smog or smog in the escape way.

The present invention may be further configured in a preferred embodiment as: the sealing strip includes that the cross-section is the joint portion of T form and the shutoff portion that the cross-section is oval ring shaped structure, the cell wall of joint portion annular, the oval major axis in shutoff portion cross-section is on a parallel with the central axis of door frame, the oval major axis in shutoff portion cross-section and the coincidence of a cell wall of annular.

By adopting the technical scheme, the plugging part is clamped on the groove wall of the annular groove through the clamping part, and the section of the clamping part is in a T shape, so that the probability of separation of the sealing strip from the groove wall of the annular groove can be effectively reduced; meanwhile, the section of the plugging part is of an elliptical structure, so that the plugging part can deform adaptively when the door leaf is clamped in the annular groove, and can be attached to the side edge of the door leaf more closely, and the plugging effect is optimized; and the long axis of the oval section of the plugging part coincides with the groove wall of the annular groove, so that the possibility that the plugging part is pushed and the plugging part is turned over relative to the clamping part in the closing process of the door leaf can be effectively reduced.

The present invention may be further configured in a preferred embodiment as: the door leaf is internally provided with a door lock for locking the door leaf relative to the door frame, a lock hole for accommodating a lock pin of the door lock is formed in the groove wall of the circular groove parallel to the central axis of the door frame, and the lock hole is formed between the two sealing strips.

Through adopting above-mentioned technical scheme, the door leaf can be through the relative door frame locking of lock, and simultaneously, the lockhole sets up between two sealing strips, can effectually reduce because of the lockhole leads to the possibility that smog was revealed.

The present invention may be further configured in a preferred embodiment as: the door frame is internally provided with a top piece which is used for enabling the door leaf to be relatively tightly attached to the annular groove.

Through adopting above-mentioned technical scheme, when the conflagration breaing out, can make the leaf of a door comparatively inseparable laminating in the cell wall through the kicking part, reduce the clearance between leaf of a door and the door frame, optimize the shutoff effect to smog.

The present invention may be further configured in a preferred embodiment as: the ejector piece comprises a push pipe and a push rod, the push pipe is integrally embedded in the side wall of the lock hole facing the outdoor side, the central axis of the push pipe is parallel to the central axis of the door frame, the push rod is inserted and slidably connected into the push pipe, the push rod can penetrate into the lock hole and can be abutted against or separated from the lock pin of the door lock, the push pipe is of an end-closed structure, and the inner cavity of the push pipe is provided with a graphite block made of expanded graphite.

Through adopting above-mentioned technical scheme, when using, because the relative door frame of door leaf is in normally closed state at daily, the lockpin of lock is inserted and is located in the lockhole, when the conflagration breaing out, high temperature can make the graphite block inflation, the expanded graphite block can make the ejector pin towards the downthehole roll-off of lockhole, and can make the ejector pin butt in the lockpin of lock, so that the relative comparatively inseparable laminating of door leaf in the cell wall of annular, reduce the clearance between door leaf and the door frame, reduce the possibility that smog passes through, optimize the shutoff effect to smog, and simultaneously, the lockpin of lock still can break away from relatively the lockhole.

The present invention may be further configured in a preferred embodiment as: a plurality of anchor bolts are arranged in the door frame in a penetrating mode, one end of each anchor bolt is arranged in the wall body in a penetrating mode, and the other end of each anchor bolt is connected to the frame edge of the door frame in a threaded mode.

Through adopting above-mentioned technical scheme, when using, the crab-bolt can effectual increase the joint strength between door frame and the wall body, reduces because of high temperature leads to the door frame to warp, and makes the probability that the relative wall body of door frame breaks away from.

The present invention may be further configured in a preferred embodiment as: encircle the door frame deviates from its central one side outer wall and has seted up the mounting groove, a plurality of graphite strips that adopt expanded graphite to make of fixedly connected with in the mounting groove.

Through adopting above-mentioned technical scheme, the graphite strip that adopts expanded graphite to make can expand under high temperature, even the clearance increase between door frame and the wall hole, the clearance of increase between door frame and the wall hole also can be filled to the expanded graphite strip, reduces the possibility that smog passed through.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the sealing device is used, the door leaf is clamped in the annular groove, the path length of smoke passing through the gap between the door leaf and the door frame can be effectively increased through the annular groove, and the speed of smoke permeation is reduced, so that the probability of smoke passing through the gap between the door leaf and the door frame can be effectively reduced, meanwhile, the gap between the door leaf and the door frame can be effectively blocked by the two sealing strips, the two sealing strips are distributed in the direction parallel to the central axis of the door frame, multiple sealing can be performed on the permeation of smoke, the possibility of smoke permeation is reduced, and the flow of smoke or smoke in the safety channel is reduced;

2. when the anchor bolt is used, the connecting strength between the door frame and the wall body can be effectively increased, and the probability that the door frame is separated from the wall body due to deformation of the door frame caused by high temperature is reduced; the graphite strip that adopts expanded graphite to make simultaneously can expand under high temperature, even the clearance increase between door frame and the wall hole, the clearance of increase between door frame and the wall hole also can be filled to expanded graphite strip, reduces the possibility that smog passes through.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a sectional view a-a of fig. 1, which is mainly used to show the structure of the sealing tape.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 2, which is mainly used for showing the structure of the top member.

In the figure, 1, a door frame; 11. a ring groove; 12. a sealing strip; 121. a clamping part; 122. a plugging section; 13. mounting grooves; 131. an anchor bolt; 132. graphite strips; 14. a lock hole; 15. a top piece; 151. jacking pipes; 152. a top rod; 153. graphite blocks; 154. a first ring platform; 155. a second ring platform; 2. a door leaf; 21. a door lock is provided.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a single-leaf fireproof airtight door, include door frame 1 and articulate door leaf 2 in door frame 1. The door frame 1 is a rectangular frame-shaped structure, the inner side edge surrounding the door frame 1 is provided with a ring groove 11, the ring groove 11 faces the center opening of the door frame 1 outdoors, and the door leaf 2 can be clamped in or separated from the ring groove 11.

The groove wall card that the annular groove 11 is on a parallel with the central axis of door frame 1 is equipped with two sealing strips 12, and two sealing strips 12 distribute along the length direction of door frame 1 central axis. Wherein, sealing strip 12 can be selected to adopt the elasticity sealing strip that fire retardant level nylon made.

When using, door leaf 2 card is located in annular 11, can effectually increase the path length that smog passes through from the clearance between door leaf 2 and the door frame 1 through annular 11, reduce the speed of infiltration smog release, thereby can effectually reduce the probability that smog passes through the clearance between door leaf 2 and the door frame 1, two sealing strips 12 can effectually do the shutoff to the clearance between door leaf 2 and the door frame 1 simultaneously, two sealing strips 12 distribute along the direction that is on a parallel with 1 the central axis of door frame, can do many times sealed to the infiltration of smog, with the possibility that reduces smog infiltration, thereby reduce the flow of smog or smog in the escape way.

Referring to fig. 1 and 2, the sealing strip 12 includes a clamping portion 121 having a T-shaped cross section and a blocking portion 122 having an elliptical ring-shaped cross section, a groove wall of the ring groove 11 of the clamping portion 121, a major axis of an elliptical cross section of the blocking portion 122 is parallel to a central axis of the doorframe 1, and a major axis of an elliptical cross section of the blocking portion 122 coincides with the groove wall of the ring groove 11 which is parallel to the central axis of the doorframe 1.

When the sealing strip is used, the blocking part 122 is clamped on the groove wall of the ring groove 11 through the clamping part 121, and the T-shaped section of the clamping part 121 can effectively reduce the probability that the sealing strip 12 is separated from the groove wall of the ring groove 11; meanwhile, the section of the blocking part 122 is of an elliptical structure, so that when the door leaf 2 is clamped in the annular groove 11, the blocking part 122 can deform adaptively, so as to be attached to the side edge of the door leaf 2 more closely, and the blocking effect is optimized; and the major axis of the elliptic section of the blocking part 122 coincides with the groove wall of the ring groove 11 parallel to the central axis of the door frame 1, so that the possibility that the blocking part 122 is pushed and the blocking part 122 is turned over relative to the clamping part 121 in the closing process of the door leaf 2 can be effectively reduced.

Referring to fig. 1 and 2, in order to enable the door leaf 2 to be locked relatively to the door frame 1, a door lock 21 for locking the door leaf 2 relative to the door frame 1 is arranged in the door leaf 2, a groove wall of the ring groove 11 parallel to the central axis of the door frame 1 is provided with a lock hole 14 for accommodating a lock pin of the door lock 21 for locking the door leaf 2 relative to the door frame 1, and the lock hole 14 is arranged between the two sealing strips 12. To reduce the likelihood of smoke leakage through the lock aperture 14.

Referring to fig. 2 and 3, a top member 15 is provided in the door frame 1 to allow the door leaf 2 to be relatively closely attached to the wall of the annular groove 11 in case of a fire.

The jacking piece 15 comprises a jacking pipe 151 and a jacking rod 152 integrally inserted into the jacking pipe 151, the jacking pipe 151 is integrally embedded into the side wall of the lock hole 14 facing the outdoor side, one end of the jacking pipe 151 is closed, the other end of the jacking pipe 151 faces the indoor side, and the central axis of the jacking pipe 151 is parallel to the central axis of the door frame 1. The push rod 152 can slide along the central axis direction of the push pipe 151, the push rod 152 can be abutted to or separated from a lock pin of the door lock 21, and a graphite block 153 made of expanded graphite is placed in the push pipe 151; the graphite block 153 is located between the top rod 152 and the bottom wall of the top tube 151.

When using, because the relative door frame 1 of door leaf 2 is in normally closed state at daily, the lockpin of lock 21 is inserted and is located in lockhole 14, when the conflagration breaing out, high temperature can make graphite block 153 expand, expanded graphite block 153 can make ejector pin 152 towards lockhole 14 in the roll-off, and can make ejector pin 152 butt in the lockpin of lock 21, so that the relative comparatively inseparable cell wall of laminating in annular 11 of door leaf 2, reduce the clearance between door leaf 2 and the door frame 1, reduce the possibility that smog passes through, optimize the shutoff effect to smog.

Referring to fig. 2 and 3, a first annular platform 154 is fixedly connected around the opening edge of the top pipe 151 and a second annular platform 155 is fixedly connected around the top rod 152 towards one end of the bottom wall of the top pipe 151, so that the possibility that the top rod 152 slides out relative to the top pipe 151 is reduced when the door lock is in use and the lock pin of the door lock 21 is not inserted into the lock hole 21.

Encircle the outer wall that door frame 1 deviates from its central one side and seted up mounting groove 13, be provided with a plurality of crab-bolts 131 in the mounting groove 13, a frame limit and both threaded connection of door frame 1 are passed to the one end of crab-bolt 131, and the other end of crab-bolt 131 is worn to locate in the wall body. A plurality of graphite strips 132 made of expanded graphite are fixedly connected in the mounting groove 13, and the graphite strips 132 are clamped between the outer edge of the door frame 1 and the wall opening for mounting the door frame 1.

When the door frame is used, the anchor bolts 131 can effectively increase the connection strength between the door frame 1 and the wall body, and reduce the probability that the door frame 1 is separated from the wall body due to the deformation of the door frame 1 caused by high temperature; the graphite strip 132 that adopts expanded graphite to make simultaneously can expand under high temperature, even the clearance increase between door frame 1 and the wall hole, the clearance of increase between door frame 1 and the wall hole also can be filled to expanded graphite strip 132, reduces the possibility that smog passes through.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a single leaf protection fire prevention airtight door, includes door frame (1) and articulates door leaf (2) in door frame (1), its characterized in that: door frame (1) is rectangle frame column structure, encircles annular (11) have been seted up in door frame (1), door frame (1) can block and locate or break away from annular (11), annular (11) are towards the central opening outdoor with door frame (1), the cell wall card that annular (11) are on a parallel with the central axis of door frame (1) is equipped with two sealing strips (12), two sealing strip (12) distribute along the central axis direction of door frame (1) rectangle frame form.

2. The single-leaf protective fire-resistant containment door of claim 1, wherein: sealing strip (12) are oval ring shaped structure's shutoff portion (122) including joint portion (121) that the cross-section is T form and cross-section, the cell wall of joint portion (121) annular (11), the oval major axis in shutoff portion (122) cross-section is on a parallel with the central axis of door frame (1), the oval major axis in shutoff portion (122) cross-section and the coincidence of a cell wall of annular (11).

3. The single-leaf protective fire-resistant containment door of claim 2, wherein: be provided with in door leaf (2) and be used for door lock (21) with door leaf (2) relative door frame (1) locking, lockhole (14) that are used for holding lock (21) lockpin are offered to the cell wall that is on a parallel with the central axis of door frame (1) in annular (11), lockhole (14) set up between two sealing strips (12).

4. The single-leaf protective fire-resistant containment door of claim 3, wherein: the door frame (1) is internally provided with a top piece (15) which is used for enabling the door leaf (2) to be relatively tightly attached to the annular groove (11).

5. The single-leaf protective fire-resistant containment door of claim 4, wherein: ejector member (15) are including push pipe (151) and ejector pin (152), push pipe (151) are whole to be inlayed and are located lockhole (14) towards outdoor one side lateral wall in, the central axis of push pipe (151) is on a parallel with the central axis of door frame (1), ejector pin (152) are inserted and are established and slide and connect in push pipe (151), ejector pin (152) can penetrate to lockhole (14) in and can butt in or break away from the lockpin of door lock (21), push pipe (151) are one end enclosed construction and its inner chamber and have placed graphite block (153) that adopt expanded graphite to make.

6. The single-leaf protective fire-resistant containment door of claim 5, wherein: a plurality of anchor bolts (131) are arranged in the door frame (1) in a penetrating mode, one end of each anchor bolt (131) is arranged in the wall body in a penetrating mode, and the other end of each anchor bolt (131) is connected to the frame edge of the door frame (1) in a threaded mode.

7. The single-leaf protective fire-resistant containment door of claim 6, wherein: encircle door frame (1) deviates from its central one side outer wall and has seted up mounting groove (13), a plurality of graphite strips (132) that adopt expanded graphite to make of fixedly connected with in mounting groove (13).