CN219138889U

CN219138889U - Folding fireproof door

Info

Publication number: CN219138889U
Application number: CN202223178266.4U
Authority: CN
Inventors: 韩佳
Original assignee: Genjiu Beijing Door Industry Co ltd
Current assignee: Genjiu (Beijing) Technology Co.,Ltd.
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-06-06
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a folding fireproof door which comprises a door leaf and a door frame, wherein the door frame is arranged on a wall body; the door leaf is provided with a folding mechanism, the door leaf is connected with the door frame through the folding mechanism and is folded and opened through the folding mechanism, and the door leaf after folding and opening is embedded into the wall body and keeps flush with the outer surface of the wall body. When the folding fireproof door is used under normal conditions, the door leaf can be folded and opened through the folding mechanism and embedded into the wall body to enable the surface of the door leaf to be kept flush with the outer surface of the wall body when the folding fireproof door is opened, the folding embedded design is adopted, the fireproof door cannot occupy the space of a channel under the opened state, the passing of people cannot be hindered, the passing of people in the channel is improved, and the door leaf can be closed to play a role in obstructing the fire of the fireproof door body when a fire disaster occurs.

Description

Folding fireproof door

Technical Field

The utility model relates to the technical field of fireproof door manufacturing, in particular to a folding fireproof door.

Background

Fireproof doors refer to doors with certain fireproof performance, heat insulation performance, stability and other safety performances, and are usually arranged in safety channels such as exhibition halls, factories, hospitals and the like in large-scale buildings, so that flames and smoke are blocked when fire disasters occur in the buildings, fire spreading is prevented, and personnel evacuation is ensured.

At present, the common fireproof doors on the market comprise wooden fireproof doors, steel fireproof doors and the like according to material classification, but when the fireproof doors are installed and used at the passage, the door leaves are positioned outside the wall body in the opening state of the fireproof doors, and occupy certain space positions at the passage, so that the passage personnel throughput is limited, the fireproof doors are easy to block when fire occurs, and people are not benefited to escape.

Disclosure of Invention

Based on the space, the folding fireproof door is used for solving the problems that the conventional fireproof door occupies the space of a channel and the personnel throughput of the channel is limited when the conventional fireproof door is used.

A folding fire rated door comprising:

the door frame is arranged on the wall body;

the door leaf is provided with folding mechanism on the door leaf, the door leaf passes through folding mechanism connects the door frame is and pass through folding mechanism is folding open, folding after opening the door leaf embedding on the wall body and with the wall body surface keeps the parallel and level.

As a further alternative to the above-mentioned folding fire door, the door frame is provided with a door frame lining, and the door frame is welded to the wall body through the door frame lining.

As a further alternative scheme of the folding fireproof door, one side, close to the door leaf, of the door frame is bent to form an avoidance space, and a fireproof expansion sealing strip is arranged in the avoidance space and the door leaf is connected with the door frame through the avoidance space.

As a further alternative of the folding fire door described above, the door leaf includes a first door leaf and a second door leaf, and the folding mechanism includes a door closing member and a folding member, the door closing member is disposed on the first door leaf and is used for connecting the door frame, and the folding member is used for connecting the first door leaf and the second door leaf.

As a further alternative of the folding fire door, the door closing member includes a top shaft and a ground shaft, the top shaft is fixedly disposed on a side of the top of the first door leaf away from the second door leaf through threads, and the ground shaft is disposed at the bottom of the first door leaf opposite to the top shaft.

As a further alternative of the folding fire door, the folding member includes a first central hanger and a second central hanger, the first central hanger is disposed at an upper portion of a junction between the first door leaf and the second door leaf, and the second central hanger is disposed at a lower portion of the junction between the first door leaf and the second door leaf with respect to the first central hanger.

As a further alternative of the folding fireproof door, the first door leaf and the second door leaf are provided with a snap structure, and the snap structure is used for enhancing the connection strength of the first door leaf and the second door leaf when they are closed.

As a further alternative scheme of the folding fireproof door, an interactive framework and an oblique framework for improving supporting strength are arranged in the door leaf, the interactive framework comprises a large framework and a small framework which are welded to form a grid-shaped whole, the large framework and the small framework are of a U-shaped structure, and the oblique framework is arranged at the corner of the door leaf.

As a further alternative of the folding fireproof door, the door leaf is filled with a fireproof material, and the fireproof material is a hole type door core plate.

As a further alternative scheme of the folding fireproof door, the folding fireproof door is characterized by further comprising a door gripper, an electromagnetic door stopper and a lock plunger structure, wherein the door gripper is used for being manually opened when the folding fireproof door has a mechanical failure, the electromagnetic door stopper is used for enabling the door leaf to be kept in an opened state, and the lock plunger structure comprises a fireproof lock, a hidden bolt and a door handle.

The embodiment of the utility model has the following beneficial effects:

the utility model provides a folding fireproof door which comprises a door frame and a door leaf, wherein the door frame is arranged on a wall body, a folding mechanism is arranged on the door leaf, the door leaf is connected with the door frame, the folding fireproof door is in an opened state under normal conditions, the door leaf can be folded through the folding mechanism when being opened, the folded door leaf can be embedded into the wall body at a channel, and the surface of the door leaf is kept level with the outer surface of the wall body. Compared with the conventional normally open fireproof door, the folding fireproof door adopting the folding embedded design is embedded into the wall body in an opening state, so that the space of a channel is not occupied, the personnel throughput of the channel is improved, and the door can be closed to play a role of the fireproof door to block the spread of fire when a fire disaster occurs.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

fig. 1 is a schematic view of the overall structure of the folding fire door of the present utility model;

fig. 2 is a schematic view showing the internal structure of the side of the folding fire door of the present utility model;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 2;

fig. 5 is a schematic top view of a folded fire door according to the present utility model;

FIG. 6 is an enlarged view of the structure at C in FIG. 5;

fig. 7 is an enlarged view of the structure at D in fig. 5;

fig. 8 is a cross-sectional view of the first door leaf and the door frame of the present utility model when connected;

fig. 9 is a schematic structural view of the folded fireproof door of the present utility model when the door is folded and embedded in a wall;

FIG. 10 is a schematic view of the structure of a crown block used in the present utility model;

FIG. 11 is a schematic view of the structure of a ground shaft used in the present utility model;

FIG. 12 is a schematic view of a first central crane used in the present utility model;

fig. 13 is a schematic view of a second central crane structure used in the present utility model.

Description of main reference numerals:

100-door frame; 110-door frame lining; 111-avoidance space;

200-door leaf; 210-a first door leaf; 220-a second door leaf; 230-a folding mechanism; 231-zenith; 232-ground axis; 233-a first central crane; 234-a second central crane; 240-bite structure; 250-interactive skeleton; 251-big skeleton; 252-small skeletons; 260-oblique skeleton; 270-hole door core;

300-fireproof expansion sealing strip; 400-door grip; 500-fire lock; 600-door handle; 700-wall body;

an internal structure schematic diagram of the joint of the top of the side part of the A-folded fireproof door and the door frame;

b-an internal structure schematic diagram of the joint of the side bottom of the fireproof door and the door frame;

the structural schematic diagram of the joint of the first door leaf and the second door leaf in the overlooking view of the C-folding fireproof door;

and a structural schematic diagram of the joint of the first door leaf and the door frame under the overlooking view of the D-folding fireproof door.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a folding fireproof door, which can be folded when a door leaf is unfolded, and the folded door leaf can be embedded into a wall body to enable the surface of the door leaf to be kept flush with the outer surface of the wall body.

The utility model provides a folding fireproof door, please refer to fig. 1-13, comprising a door frame 100 and a door leaf 200.

The door frame 100 is disposed on a wall 700;

the door leaf 200 is provided with a folding mechanism 230, the door leaf 200 is connected with the door frame 100 through the folding mechanism 230 and is folded and opened through the folding mechanism 230, and the folded and opened door leaf 200 is embedded into the wall 700 and keeps flush with the outer surface of the wall 700.

Here, as shown in fig. 9, the folding fireproof door of the present application is embedded into the wall 700 when being folded and unfolded, so that the folding fireproof door of the present application is matched with the folding fireproof door, and when the folding fireproof door is installed, a receiving groove needs to be formed in the wall 700 of the channel to provide the receiving space of the door leaf 200.

The application provides a folding fire door that prevents that fire door includes door frame 100 and door leaf 200, and door frame 100 directly sets up on wall body 700, and door leaf 200 connects door frame 100 and is provided with folding mechanism 230 on the door leaf 200, and when folding fire door was opened under the normal condition, closed door leaf 200 was folded through folding mechanism 230 and is opened, and folding door leaf 200 after opening can be embedded into the holding tank of seting up on the wall body 700 of passageway and the folding door leaf 200 in the embedding holding tank its surface and the surface looks parallel and level of wall body 700. Unlike conventional fire doors in the market, conventional fire doors occupy space at the channel under the open state, preventing people from passing through the fire door at the channel to a certain extent, and the folding fire door of the application adopts a folding embedded design, the door leaf 200 can be folded and opened to be embedded into the wall 700, the space which cannot occupy the channel under the open state prevents people from passing through, the clean throughput of people at the fire door is facilitated, and the fire door can be closed to block fire spread during fire occurrence.

In some embodiments, referring to fig. 7-8, the door frame 100 is provided with a door frame lining 110, and the door frame 100 is welded to the wall 700 via the door frame lining 110.

Here, by the design of the door frame lining 110, when the door frame 100 is installed, the door frame 100 is directly welded to the wall 700 through the door frame lining 110, so that the door frame 100 is firmly connected with the wall 700.

In an embodiment, referring to fig. 7-8, a side of the door frame 100, which is close to the door leaf 200, is bent to form an avoidance space 111, a fireproof expansion sealing strip 300 is disposed in the avoidance space 111, and the door leaf 200 is connected to the door frame 100 through the avoidance space 111.

Through the design, the avoidance space 111 formed by bending one side of the door frame 100 enables the door leaf 200 to be connected with the door frame 100 through the avoidance space 111, and the door leaf 200 connected with the door frame 100 can rotate in the avoidance space 111 so as to be embedded into the wall body 700 after being folded, in addition, due to the fact that the fireproof expansion sealing strip 300 is arranged in the avoidance space 111, the fireproof expansion sealing strip 300 can rapidly expand when a fire disaster occurs to seal gaps between the door leaf 200 and the door frame 100 to block air circulation between the two spaces, so that harmful gases such as generated dense smoke are prevented from spreading through the door gaps, and the fireproof performance of the folded fireproof door is improved.

In one embodiment, referring to fig. 1, the door leaf 200 includes a first door leaf 210 and a second door leaf 220, and the folding mechanism 230 includes a door closing member and a folding member, wherein the door closing member is disposed on the first door leaf 210 to connect to the door frame 100, and the folding member is used to connect the first door leaf 210 and the second door leaf 220.

Here, by the folding mechanism 230 composed of the door closing member and the folding member, the folding fire door can not only be folded with each other between the first door leaf 210 and the second door leaf 220 by the folding member when opened, but also be relatively rotated with the door frame 100 by the door closing member so as to be inserted into the receiving groove provided in the wall body 700, and when the folding fire door is closed, the door leaf 200 can be unfolded by the door closing member and the folding member to close the passage.

Here, it should be noted that, as shown in fig. 1, the folding fireproof door provided in the present application adopts a two-door design of the door leaves 200 and adopts a symmetrical design mode of two left and right doors in terms of the number of the door leaves 200, so that only the design of the first door leaves 210 and the second door leaves 220 on one side of the whole folding fireproof door is described herein as an example, the design of the folding fireproof door includes, but is not limited to, the two-door design of the door leaves 200 shown in the present application, and the door leaves 200 may be provided with one or more than two doors, and no matter whether the two-door design is adopted or the one-door design is adopted, the number of the door leaves 200 is not specifically limited in the present application, and it should be noted that, in addition to the specific number of the door leaves 200 being provided with the sealing strip, the fireproof expansion sealing strip 300 is also provided between the door leaves 200 and the door frame 100, so that when a fire disaster occurs, the gap between the door leaves 200 and the door leaves 200 is lifted, and the first door leaves 210 are provided with the sealing pin for preventing burglary.

Further, in a specific embodiment, referring to fig. 1 and fig. 10-11, the door closing member includes a top shaft 231 and a ground shaft 232, the top shaft 231 is fixedly disposed on a side of the top of the first door leaf 210 away from the second door leaf 220 through threads, and the ground shaft 232 is disposed at the bottom of the first door leaf 210 opposite to the top shaft 231.

It should be noted that, in this embodiment, the upper shaft 231 and the lower shaft 232 are standard components sold in the market, and their specific structures are shown in fig. 10 and 11, so that the specific structures, the usage and the functions thereof will not be described in detail in this application.

With this design, the upper shaft 231 fixedly disposed on the top of the first door leaf 210 is connected to the door frame 100, the lower shaft 232 fixedly disposed on the bottom of the first door leaf 210 with respect to the upper shaft 231 is connected to the door frame 100, the upper shaft 231 and the lower shaft 232 are disposed to correspond to the door shafts of the folding fire door, and the first door leaf 210 can rotate in the avoiding space 111 with respect to the door frame 100 via the upper shaft 231 and the lower shaft 232, so that the folding fire door is opened or closed.

In some embodiments, referring to fig. 1 and 12-13, the folding member includes a first central hanger 233 and a second central hanger 234, the first central hanger 233 being disposed at an upper portion of a junction of the first door leaf 210 and the second door leaf 220, and the second central hanger 234 being disposed at a lower portion of the junction of the first door leaf 210 and the second door leaf 220 with respect to the first central hanger.

It should be noted that, as with the upper shaft 231 and the lower shaft 232 in the foregoing embodiments, the first central crane 233 and the second central crane 234 used in this embodiment are also standard components sold in the market, and their specific structures are shown in fig. 12 and 13, and will not be described herein.

When the first central crane 233 and the second central crane 234 are fixed on the surfaces of the first door leaf 210 and the second door leaf 220 by screws during installation, so that the first door leaf 210 and the second door leaf 220 can be connected with each other, can rotate at the connecting position and can be folded with each other, and the function is equivalent to a folding hinge.

In an embodiment, referring to fig. 5 and 6, the first door leaf 210 and the second door leaf 220 are provided with a snap structure 240, and the snap structure 240 is used to enhance the connection strength of the connection portion when the first door leaf 210 and the second door leaf 220 are closed.

Here, through the interlock structure 240 that sets up on first door leaf 210 and the second door leaf 220, when the door leaf 200 was closed, first door leaf 210 and second door leaf 220 were closed through this interlock structure 240, and the closure between two door leaves 200 is inseparabler, and the inseparable connection effect of interlock structure 240 helps making the whole surface of closed door leaf 200 remain level when receiving external force impact or conflagration emergence, is difficult for taking place to buckle, improves the intensity of folding fire door.

In one embodiment, referring to fig. 2-7, an interactive framework 250 and an oblique framework 260 for improving supporting strength are disposed in the door leaf 200, the interactive framework 250 includes a large framework 251 and a small framework 252 welded to form a grid-shaped whole, the large framework 251 and the small framework 252 are in a U-shaped structure, and the oblique framework 260 is disposed at a corner of the door leaf 200.

It should be noted that, the large frame 251 and the small frame 252 are made of steel materials, and in the specific design of the large frame 251 and the small frame 252 forming the interactive frame 250, the width of the large frame 251 is matched with the thickness of the door leaf 200, the width of the small frame 252 is half of the thickness of the door leaf 200, when the large frame 251 and the small frame 252 are welded, the welding position of the large frame 251 corresponds to the corner of the door leaf 200, and the welding position of the small frame 252 corresponds to the height direction and the length direction of the door leaf 200, therefore, the large frame 251 and the small frame 252 are welded to form an integral interactive frame 250 and then are arranged in the door leaf 200 in a grid shape, in addition, as the size of the small frame 252 is only half of the thickness of the door leaf 200 in design, when a fire occurs, the heat absorbed on the surface of the door leaf 200 is not transferred to the small frame 252 of the inner steel, so that the door leaf 200 is helped to break the heat, and the heat resistance of the door leaf 200 is improved.

Through the design of the interactive framework 250 and the oblique framework 260, the stable supporting function can be provided for the whole door leaf 200, and the interactive framework 250 which is welded into the whole to be in a grid shape and the oblique framework 260 which is arranged at the corners provide the double supporting function for the door leaf 200, so that the whole door leaf 200 has more stable supporting strength, and the door leaf 200 cannot be bent even under the condition that the size of the whole folding fireproof door is larger.

Further, in a more specific embodiment, referring to fig. 8, the door leaf 200 is filled with a fire-proof material, which is a hole-type door core 270.

Here, the hole-type door core 270 serving as a fireproof material inside the door leaf 200 contributes to weight reduction of the entire folded fireproof door and provides it with sound and heat insulation, and in addition, the hole-type door core 270 filled inside the door leaf 200 can also improve the supporting strength of the door leaf 200 to some extent.

In some embodiments, referring to fig. 1, the folding fireproof door is further provided with a door handle 400, an electromagnetic door stopper, and a latch structure, wherein the door handle 400 is used for being manually opened when the folding fireproof door is mechanically failed, the electromagnetic door stopper is used for keeping the door leaf 200 in an opened state, and the latch structure comprises a fireproof lock 500, a hidden latch and a door handle 600.

Here, electromagnetic door stopper (not shown in the drawing) can adsorb the folding fireproof door that the folding was opened in the accommodation groove of wall 700 and make it keep the state of opening, can make the folding door leaf 200 of absorption expand and close the passageway when the conflagration takes place again, door handle 400 sets up in the upper portion of first door leaf 210, make the folding fireproof door through the setting of door handle 400 can the manual door leaf 200 of opening of operating personnel when self has mechanical failure to be difficult to normally open, in addition, through the lock plunger structure that fireproof lock 500, hidden bolt (not shown in the drawing) and door handle 600 constitute, folding fireproof door can lock or unlock the door leaf 200 of closing and open.

Finally, it should be noted that, in the manufacture of the door leaf 200 and the door frame 100, the door leaf 200 and the door frame 100 are both made of galvanized cold-rolled steel sheets, which have good workability, and are convenient for the processing and forming of the door leaf 200 and the door frame 100, in the manufacture of the door leaf 200, the inner side of the door leaf 200 is further coated with a layer of fireproof and heat-insulating glue, which can promote the heat-insulating performance of the whole folding fireproof door together with the hole-type door core plate 270 and the interactive skeleton 250 in the foregoing embodiment, and in addition, rivets (not shown in the figure) are provided on four sides of the manufactured door leaf 200, and the door leaf 200 is fixed and formed by the rivets.

Referring to fig. 1-13, the folding fire door includes a door frame 100 and a door leaf 200, a folding mechanism 230 formed by a door closing member and a folding member is disposed on the door leaf 200, the door leaf 200 includes a first door leaf 210 and a second door leaf 220, an avoidance space 111 connected to the first door leaf 210 is formed on the door frame 100, and a fire-proof expansion sealing strip 300 is disposed in the avoidance space 111, the door closing member includes an upper shaft 231 and a ground shaft 232, the folding member includes a first central hanging 233 and a second central hanging 234, the first door leaf 210 is connected with the door frame 100 through the upper shaft 231 and the ground shaft 232, the first door leaf 210 and the second door leaf 220 are connected and folded through the first central hanging 233 and the second central hanging 234, and the folding fire door is matched with the folding fire door, when the folding fire door is installed, a containing groove needs to be formed on a wall 700 at a channel, so that the folded door leaf 200 can be embedded into the wall 700. Compared with the conventional fireproof door, the folding fireproof door with the folding embedded design does not occupy the space at the channel when being opened in a normal state, does not obstruct the passing of personnel, and can be closed to prevent the spread of fire when a fire disaster occurs.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. A folding fire rated door comprising:

the door frame is arranged on the wall body;

2. A folding fire door according to claim 1, wherein the door frame is provided with a door frame lining, the door frame being welded to the wall by the door frame lining.

3. The folding fireproof door according to claim 1, wherein one side of the door frame, which is close to the door leaf, is bent to form an avoidance space, a fireproof expansion sealing strip is arranged in the avoidance space, and the door leaf is connected with the door frame through the avoidance space.

4. A folding fire door according to claim 1, wherein the door leaves comprise a first door leaf and a second door leaf, and the folding mechanism comprises a door closing member arranged on the first door leaf for connecting the door frame and a folding member for connecting the first door leaf and the second door leaf.

5. The folding fire door of claim 4 wherein said door closure member comprises an upper shaft and a lower shaft, said upper shaft being threadably secured to said first door leaf on a side thereof remote from said second door leaf, said lower shaft being disposed on a bottom of said first door leaf opposite said upper shaft.

6. A folding fire door according to claim 4, wherein the folding member comprises a first central hanger and a second central hanger, the first central hanger being disposed at an upper portion of a junction of the first door leaf and the second door leaf, the second central hanger being disposed at a lower portion of the junction of the first door leaf and the second door leaf relative to the first central hanger.

7. The folding fire door of claim 4 wherein said first door leaf and said second door leaf are provided with snap features for enhancing the strength of the connection of said first door leaf and said second door leaf when closed.

8. The folding fireproof door according to claim 1, wherein an interactive framework and an oblique framework for improving supporting strength are arranged in the door leaf, the interactive framework comprises a large framework and a small framework which are welded to form a grid-shaped whole, the large framework and the small framework are of a U-shaped structure, and the oblique framework is arranged at the corner of the door leaf.

9. The folding fire door of claim 1 wherein the door leaf is filled with a fire-resistant material, the fire-resistant material being a cavity door core.

10. The folding fire door of claim 1 further comprising a door handle for manual opening in the event of a mechanical failure of the folding fire door, an electromagnetic door stopper for maintaining the door leaf in an open position, and a latch structure comprising a fire lock, a concealed latch, and a door handle.