CN211714979U

CN211714979U - Fireproof airtight sealing door

Info

Publication number: CN211714979U
Application number: CN202020216408.3U
Authority: CN
Inventors: 张迪; 蔡强
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: 2020-10-20
Anticipated expiration: 2030-02-26

Abstract

The utility model relates to an airtight shutoff door of fire prevention, it includes the door frame and hands-on in the door leaf of door frame, the annular has been seted up towards indoor one side of door frame, the door leaf can block and locate or break away from the annular, the cell wall card that the annular is on a parallel with the door leaf is equipped with the sealing strip that is used for sealing up the clearance between door leaf and the door frame, the side edge of door leaf is provided with a plurality of sealing members that are used for further doing the shutoff. The utility model discloses to the relative preferred of shutoff effect of smog.

Description

Fireproof airtight sealing door

Technical Field

The utility model belongs to the technical field of door and window's technique and specifically relates to a fire prevention airtight shutoff 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: when the fireproof door is used, the fireproof performance and the heat insulation performance of the fireproof door are high, meanwhile, when a fire disaster occurs, the fireproof door is required to have a certain blocking effect on smoke, the smoke entering a safety passage is reduced, and people are influenced to escape.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a fire prevention airtight shutoff 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 fire prevention airtight shutoff door, includes the door frame and hands-on in the door leaf of door frame, the annular has been seted up towards indoor one side of door frame, the door leaf can block and locate or break away from the annular, the cell wall card that the annular is on a parallel with the door leaf is equipped with the sealing strip that is used for sealing up the clearance between door leaf and the door frame, the side of door leaf is along being provided with a plurality of sealing members that are used for further doing the shutoff.

Through adopting above-mentioned technical scheme, when using, the door leaf card is located in the annular to increase the compactness of being connected between door leaf and the doorframe, thereby can effectually reduce the clearance between door leaf and the doorframe, in order to reduce and pass through smog, the sealing strip can be further sealed to the clearance between the cell wall of door leaf and annular simultaneously, can further reduce the smog that passes through.

The present invention may be further configured in a preferred embodiment as: the sealing strip includes that the cross-section is the shutoff portion of ring form structure and is used for the joint portion of card locating the door frame, the cell wall of annular is located to joint portion cross-section for T form and its card.

Through adopting above-mentioned technical scheme, when using, the cross-section is annular shutoff portion can be when the door leaf card is located the annular, comparatively inseparabler relatively in the cell wall of annular of laminating, and the shutoff portion passes through joint portion joint in the cell wall of annular simultaneously to in the change sealing strip.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a sealing structure of door leaf, including door leaf, seal groove, box opening, box opening, seal groove, box.

Through adopting above-mentioned technical scheme, when the conflagration breaing out, high temperature can make the graphite strip inflation, and the restriction of box and seal box is placed to the expanded graphite strip, can make the seal box slide to and butt in the cell wall of annular to do further sealedly to the clearance between door leaf and the door frame.

The present invention may be further configured in a preferred embodiment as: the outer wall of the sealing box is coated with a sealing layer made of elastic refractory material.

By adopting the technical scheme, the sealing layer can effectively improve the tightness of the sealing box when the sealing box is abutted against the groove wall of the annular groove, so that the blocking effect on smoke is further improved.

The present invention may be further configured in a preferred embodiment as: the placing box is internally and fixedly connected with a plurality of guide rods parallel to the opening direction of the placing box, the sealing box is internally and fixedly connected with a plurality of guide tubes matched with the guide rods, and the guide rods are inserted into the guide tubes on the placing box in the sealing box.

Through adopting above-mentioned technical scheme, the guide rod is inserted and is located in the guide tube, can do the guide to the seal box when sliding to can do certain support to the seal box.

The present invention may be further configured in a preferred embodiment as: the lower edge of the door leaf is provided with at least one elastic sealing plate for sealing a gap between the door leaf and the ground, and the lower edge of the elastic sealing plate is erected on the ground.

Through adopting above-mentioned technical scheme, the elastic sealing plate can be sealed to the lower limb of door leaf and the clearance between the ground to be used for reducing the smog that passes through the clearance between the lower limb of door leaf and the ground, optimize the shutoff effect.

The present invention may be further configured in a preferred embodiment as: the elastic sealing plate extends along the lower edge of the door leaf, the upper edge of the elastic sealing plate is clamped on the lower edge of the door leaf, and the section of the lower edge of the elastic sealing plate is in an acute-angle triangular shape, and the acute-angle end faces the ground.

Through adopting above-mentioned technical scheme, the lower border cross-section of elastic sealing plate is acute angle triangle-shaped and acute angle end towards ground, can make relatively inseparabler laminating in ground of elastic sealing plate, increases the leakproofness between the lower border of door leaf and the ground.

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

1. when the door is used, the door leaf is clamped in the annular groove to increase the tightness of the connection between the door leaf and the door frame, so that the gap between the door leaf and the door frame can be effectively reduced to reduce smoke passing through, and meanwhile, the sealing strip can further seal the gap between the door leaf and the groove wall of the annular groove to further reduce smoke passing through;

2. when the conflagration breaing out, high temperature can make the graphite strip inflation, and the restriction of box and seal box is placed to the expanded graphite strip, can make the seal box slide to and butt in the cell wall of annular to do further sealedly to the clearance between door leaf and the door frame.

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, primarily for illustrating the structure of the seal.

Fig. 3 is a sectional view taken along line B-B of fig. 1, which is mainly used to show the structure of the elastic sealing plate.

In the figure, 1, a door frame; 11. a ring groove; 12. a sealing strip; 121. a plugging section; 122. a clamping part; 2. a door leaf; 21. a seal member; 211. a sealing box; 212. placing the box; 213. graphite strips; 214. a sealing layer; 215. a guide rod; 216. a guide tube; 22. a sealing groove; 23. an elastic sealing plate.

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 fireproof airtight sealing door disclosed by the present invention, the fireproof airtight sealing door comprises a door frame 1 and a door leaf 2, wherein a ring groove 11 is formed in one indoor side of the door frame 1, and an opening of the ring groove 11 faces the indoor and the center of the door frame 1; the groove wall of the ring groove 11 parallel to the door leaf 2 is provided with a sealing strip 12 in a clamping way so as to seal the gap between the door leaf 2 and the door frame 1. Wherein, the door leaf 2 can be clamped in or separated from the ring groove 11.

When using, door leaf 2 card is located in annular 11 to increase the compactness of being connected between door leaf 2 and the door frame 1, thereby can effectually reduce the clearance between door leaf 2 and the door frame 1, in order to reduce and pass through smog, sealing strip 12 can be to the clearance between the cell wall of door leaf 2 and annular 11 further sealed simultaneously, can further reduce the smog that passes through.

Referring to fig. 1 and 2, the sealing strip 12 includes a blocking portion 121 having a circular ring-shaped cross section and a clamping portion 122 having a T-shaped cross section, the clamping portion 122 is integrally formed on the blocking portion 121, and the clamping portion 122 is clamped in a groove wall of the ring groove 11. Wherein the sealing strip 12 is an elastic sealing strip. When using, the cross-section is annular shutoff portion 121 can be in the annular groove 11 is located to door leaf 2 card, relatively inseparabler laminating in the cell wall of annular groove 11, shutoff portion 121 passes through the cell wall of joint portion 122 joint in annular groove 11 simultaneously to change sealing strip 12.

The upper end border of door leaf 2 and the vertical border of keeping away from its articulated portion have seted up seal groove 22, seal groove 22 extends along the upper end border of door leaf 2 and the vertical border of keeping away from the articulated portion of door leaf 2, and the opening orientation of seal groove 22 deviates from central one side of door leaf 2. The vertical part and the horizontal part of the sealing groove 22 are respectively provided with a sealing member 21 which is matched with the vertical part and the horizontal part, so as to further seal the gap between the door leaf 2 and the door frame 1.

The sealing member 21 comprises a sealing box 211 and a placing box 212, the placing box 212 is clamped in the sealing box 211, the sealing box 211 and the placing box 212 are oppositely opened, the opening of the sealing box 211 faces to the center of the door leaf 2, the placing box 212 is fixedly connected to the groove wall of the sealing groove 22, and the two sealing boxes 211 are respectively adapted to the vertical part and the horizontal part of the sealing groove 22. A graphite strip 213 made of expanded graphite is fixedly connected in the placing box 212. Wherein the placing case 212 is fitted to seal the inner cavity of the case 211.

Referring to fig. 2 and 3, in case of fire, the graphite strip 213 expands due to high temperature, and the expanded graphite strip 213, due to the restriction of the placing box 212 and the sealing box 211, makes the sealing box 211 slide and abut against the groove wall of the ring groove 11 to further seal the gap between the door leaf 2 and the door frame 1.

The outer wall of the sealing box 211 is covered with a sealing layer 214 made of elastic refractory material, wherein the sealing layer 214 can be made of high temperature resistant nylon cloth. So as to increase the sealing performance when the sealing box 211 is abutted against the groove wall of the annular groove 11, thereby further increasing the blocking effect on the smoke.

A plurality of guide rods 215 parallel to the opening direction of the placing box 212 are fixedly connected in the placing box 212, a plurality of guide tubes 216 matched with the guide rods 215 are fixedly connected in the sealing box 211, and the guide rods 215 are inserted into the guide tubes 216 on the placing box 212 in the sealing box 211. For guiding the sliding movement of the sealing case 211.

Referring to fig. 2 and 3, in order to close the gap between the door leaf 2 and the ground, at least one elastic sealing plate 23 for closing the gap between the door leaf 2 and the ground is disposed at the lower edge of the door leaf 2. Wherein, the elastic sealing plate 23 can be made of flame retardant TPE.

The elastic sealing plate 23 extends along the lower edge of the door leaf 2, and both ends of the elastic sealing plate 23 in the extending direction abut against the placing box 212 and the door frame 1, respectively. The upper edge of the elastic sealing plate 23 is clamped on the lower edge of the door leaf 2, the cross section of the elastic sealing plate 23 is in an acute-angle triangular structure, and the acute-angle end of the cross section of the elastic sealing plate 23 faces the ground. So that when using, elastic sealing plate 23 can fully contact ground relatively, optimizes the shutoff effect of elastic sealing plate 23 to smog.

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 fire prevention airtight shutoff door, includes door frame (1) and handing-over in door leaf (2) of door frame (1), its characterized in that: annular (11) have been seted up towards indoor one side in door frame (1), door leaf (2) can block and locate or break away from annular (11), annular (11) are on a parallel with the cell wall card of door leaf (2) and are equipped with sealing strip (12) that are used for sealing up the clearance between door leaf (2) and door frame (1), the side of door leaf (2) is along being provided with a plurality of sealing members (21) that are used for further doing the shutoff.

2. A fire-resistant containment door as claimed in claim 1, wherein: sealing strip (12) are the shutoff portion (121) of ring shape structure and are used for the card to locate joint portion (122) of door frame (1) including the cross-section, joint portion (122) cross-section is the cell wall of T form and its card locating annular (11).

3. A fire-resistant containment door as claimed in claim 2, wherein: seal groove (22) have been seted up at the border of door leaf (2), seal groove (22) are followed the upper end border and the lateral part border extension of door leaf (2), sealing member (21) are provided with two and two horizontal parts and the vertical portion that are located seal groove (22) respectively, sealing member (21) are including locating box (212) of placing in seal box (211) towards door leaf (2) center open-ended seal box (211) and card, place box (212) towards seal box (211) opening, two seal box (211) are adapted to the horizontal part and the vertical portion of seal groove (22) respectively, place box (212) fixed connection in the cell wall of seal groove (22), place box (212) internal fixation and be connected with graphite strip (213) that adopt the expandable graphite to make.

4. A fire-resistant containment door as claimed in claim 3, wherein: the outer wall of the sealing box (211) is coated with a sealing layer (214) made of elastic refractory material.

5. A fire-resistant hermetic sealing door according to claim 4, characterized in that: the placing box (212) is internally and fixedly connected with a plurality of guide rods (215) parallel to the opening direction of the placing box, the sealing box (211) is internally and fixedly connected with a plurality of guide tubes (216) matched with the guide rods (215), and the guide rods (215) are inserted into the guide tubes (216) on the placing box (212) in the sealing box (211).

6. A fire-resistant containment door as claimed in claim 1, wherein: the lower edge of the door leaf (2) is provided with at least one elastic sealing plate (23) used for sealing a gap between the door leaf and the ground, and the lower edge of the elastic sealing plate (23) is erected on the ground.

7. A fire-resistant hermetic sealing door according to claim 6, characterized in that: the lower border of door leaf (2) is followed in elastic sealing plate (23), the lower border card of door leaf (2) is located to the last border of elastic sealing plate (23), the lower border cross-section of elastic sealing plate (23) is acute angle triangle-shaped and acute angle end towards ground.