Emergency escape pressure-bearing door convenient for passing

Abstract

The utility model relates to the technical field of pressurizing building pressure-bearing doors, in particular to an emergency escape pressure-bearing door convenient for passing. The emergency escape pressure-bearing door comprises a pressure-bearing door leaf, an airtight film and a door frame, one side of the pressure-bearing door leaf is hinged to the door frame, and the pressure-bearing door leaf can be opened outwards relative to the door frame. The airtight film can be torn by hands and is arranged in a gap formed when the pressure-bearing door leaf and the door frame are closed. The door frame is a closed frame, and the top of the bottom end of the door frame is flush with the building ground. The emergency escape door meets the requirement for outward opening of the emergency escape door, threshold-free arrangement can be achieved, and emergency passing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pressure-bearing doors for pressurized buildings, specifically to an emergency escape pressure-bearing door that facilitates passage. Background Technology

[0002] The indoor air pressure in pressurized buildings is generally tens of kilopascals higher than the outdoor ambient air pressure. Emergency escape doors used in pressurized buildings must maintain airtightness and withstand pressure differential loads. As a safety exit, the threshold height of an emergency escape door should be as low as possible to facilitate passage. However, existing emergency escape doors of this type have a bottom frame that extends upwards to compress the sealing strip, creating a relatively high threshold (typically 4cm), which hinders passage. Furthermore, most existing emergency escape doors of this type are inward-opening, which does not meet the requirement for outward-opening emergency escape doors.

[0003] Another type of emergency escape door in existing pressurized buildings uses a combination of a zipper-type airtight membrane and a breathable pressure-bearing door. The zipper-type airtight membrane is fixed to the door frame around the perimeter by airtight components. A sealing zipper is installed on the zipper-type airtight membrane for emergency depressurization and personnel evacuation. However, this sealing zipper cannot be installed through the entire height, so the bottom of the airtight membrane will form a high threshold (usually 4cm), which is not conducive to passage.

[0004] In summary, there is a need to develop an easy-to-access emergency escape pressure door to address the problems of high thresholds hindering passage in existing pressurized buildings and the fact that most emergency escape doors are inward-opening, which does not meet the requirement of outward-opening emergency escape doors. Utility Model Content

[0005] The purpose of this utility model is to provide an emergency escape pressure door that facilitates passage. The specific technical solution is as follows:

[0006] An emergency escape pressure-bearing door for easy passage includes a pressure-bearing door leaf, an airtight membrane, and a door frame; one side of the pressure-bearing door leaf is hinged to the door frame and can be opened outward relative to the door frame; the airtight membrane is a tearable airtight membrane and is disposed in the gap when the pressure-bearing door leaf and the door frame are closed; the door frame is a closed frame, and the top of its bottom end is flush with the building floor.

[0007] Optionally, the pressure-bearing door leaf includes a latch; a lock groove adapted to the latch is provided on the door frame.

[0008] Optionally, the number of locking tongues is at least two, and they are evenly spaced on the pressure-bearing door leaf.

[0009] Optionally, the pressure-bearing door leaf further includes a door handle and a rotary translation mechanism; the door handle is connected to the latch via the rotary translation mechanism.

[0010] Optionally, the pressure-bearing door leaf and the door frame are connected by magnetic attraction.

[0011] Optionally, the pressure-bearing door leaf is provided with reinforcing ribs inside.

[0012] Optionally, the easy-to-pass emergency escape pressure-bearing door further includes a structural adhesive layer; the structural adhesive layer is provided on both the pressure-bearing door leaf and the door frame, and the airtight membrane is connected to each of the structural adhesive layers.

[0013] Optionally, when the width of the gap between the pressure-bearing door leaf and the door frame when closed is greater than or equal to 1 cm, a steel strip for bonding the airtight membrane is also included. The width of the steel strip is greater than the width of the gap, and it is disposed on the side of the pressure-bearing door leaf and the door frame located indoors, facing the gap, and is bonded to the airtight membrane through the structural adhesive layer.

[0014] The application of the technical solution of this utility model has at least the following beneficial effects:

[0015] (1) The present invention provides an emergency escape pressure-bearing door that facilitates passage. The pressure-bearing door leaf can be opened outward relative to the door frame, which meets the requirements of an outward-opening emergency escape door. The top of the bottom end of the door frame is flush with the building floor, i.e., there is no threshold, which solves the problem that the emergency escape door in existing pressurized buildings has a high threshold that is not conducive to passage. In addition, the airtight membrane set in the gap between the pressure-bearing door leaf and the door frame when the door is closed is a tearable airtight membrane. On the one hand, it is used to prevent indoor air pressure from flowing out of the gap when the pressure-bearing door leaf and the door frame are closed. On the other hand, in case of an emergency, the airtight membrane can be torn open to quickly release pressure. After the indoor and outdoor air pressures are balanced, the pressure-bearing door leaf can be opened outward to achieve rapid emergency escape. Furthermore, the airtight membrane used in the present invention is not a conventional sealing strip. It does not require the bottom door frame to extend upward to squeeze the sealing strip, thus achieving a threshold-free setting and facilitating emergency passage.

[0016] (2) In this utility model, steel bars are added to facilitate the adhesion of the airtight membrane when the gap between the pressure-bearing door leaf and the door frame is too wide, so as to prevent the airtight membrane from being blown out by the air pressure difference load.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1This is a front view of an emergency escape pressure door located on the outdoor side of the embodiment (the door frame and airtight membrane are not shown).

[0020] Figure 2 This is a front view of an emergency escape pressure door, designed for easy passage, located on the indoor side, as shown in the embodiment.

[0021] Figure 3 This is a top cross-sectional view of an emergency escape pressure door in one of the embodiments, which facilitates passage.

[0022] Among them, 1. Pressure-bearing door leaf, 1.1. Lock tongue, 1.2. Door handle, 2. Airtight membrane, 3. Door frame, 3.1. Lock groove, 4. Structural adhesive layer, 5. Hinges. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] Example:

[0025] See Figures 1-3 An emergency escape pressure-bearing door for easy passage, applied in pressurized buildings, includes a pressure-bearing door leaf 1, an airtight membrane 2, and a door frame 3. One side of the pressure-bearing door leaf 1 is hinged to the door frame 3 via hinges 5 (in this embodiment, three hinges 5 are used to enhance the pressure-bearing stability of the door leaf 1), and can be opened outward relative to the door frame 3, meeting the requirement of an outward-opening emergency escape door. The airtight membrane 2 is a tearable airtight membrane and is placed in the gap when the pressure-bearing door leaf 1 and the door frame 3 are closed. The door frame 3 is a closed frame, with the top of its bottom end flush with the building floor, i.e., without a threshold, solving the problem of high thresholds in existing pressurized buildings that hinder passage. The airtight membrane 2 installed in the gap between the pressure-bearing door leaf 1 and the door frame 3 when they are closed is a tearable airtight membrane 2. On the one hand, it prevents indoor air pressure from leaking out through the gap when the pressure-bearing door leaf 1 and the door frame 3 are closed; on the other hand, in case of an emergency, the airtight membrane 2 can be torn open to quickly release pressure, and after the indoor and outdoor air pressures are balanced, the pressure-bearing door leaf 1 can be opened outward to achieve rapid emergency escape. Furthermore, the airtight membrane 2 used in this invention is not a conventional sealing strip, so there is no need for the bottom door frame to extend upward to squeeze the sealing strip, thus achieving a threshold-free setting and facilitating emergency passage.

[0026] The pressure-bearing door leaf 1 includes a latch 1.1; a lock groove 3.1 adapted to the latch 1.1 is provided on the door frame 3.

[0027] The number of the locking tongues 1.1 is at least two (three are provided in this embodiment), and they are equally spaced on the pressure-bearing door leaf 1 to enhance the pressure-bearing stability of the pressure-bearing door leaf 1.

[0028] The pressure-bearing door leaf 1 also includes a door handle 1.2 and a rotary translation mechanism (existing technology); the door handle 1.2 is connected to the latch 1.1 through the rotary translation mechanism, and is used to link the extension and retraction of the latch 1.1.

[0029] The pressure-bearing door leaf 1 is equipped with reinforcing ribs (not shown in the figure) to enhance the pressure-bearing stability of the pressure-bearing door leaf 1.

[0030] The easy-to-pass emergency escape pressure-bearing door also includes a structural adhesive layer 4 (specifically a neutral silicone weather-resistant adhesive layer); the structural adhesive layer 4 is provided on both the pressure-bearing door leaf 1 and the door frame 3, and the airtight membrane 2 is connected to each of the structural adhesive layers 4 to enhance the pressure-bearing stability of the airtight membrane 2.

[0031] When the width of the gap between the pressure-bearing door leaf 1 and the door frame 3 when they are closed is greater than or equal to 1 cm, a steel strip (not shown in the figure) for bonding the airtight membrane 2 is also included. The width of the steel strip is greater than the width of the gap, and it is positioned opposite the gap on the side of the pressure-bearing door leaf 1 and the door frame 3 located indoors. It is bonded to the airtight membrane 2 through the structural adhesive layer 4 to prevent the airtight membrane 2 from being blown out by the air pressure difference load.

[0032] The operating principle of the easily passable emergency escape pressure door in case of an emergency is as follows:

[0033] Tear open the airtight membrane 2 by hand to quickly release the pressure. After the indoor and outdoor air pressures are balanced, open the pressure-bearing door 1 to achieve rapid emergency escape. In this embodiment, a threshold-free design is implemented for easy emergency passage.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An emergency escape pressure door that facilitates passage, characterized in that, It includes a pressure-bearing door leaf (1), an airtight membrane (2), and a door frame (3); one side of the pressure-bearing door leaf (1) is hinged to the door frame (3) and can be opened outward relative to the door frame (3); the airtight membrane (2) is a tearable airtight membrane (2) and is placed in the gap when the pressure-bearing door leaf (1) and the door frame (3) are closed; the door frame (3) is a closed frame, and the top of its bottom end is flush with the building floor.

2. The emergency escape pressure door for easy passage as described in claim 1, characterized in that, The pressure-bearing door leaf (1) includes a latch (1.1); a lock groove (3.1) adapted to the latch (1.1) is provided on the door frame (3).

3. The emergency escape pressure-bearing door for easy passage as described in claim 2, characterized in that, The number of the latches (1.1) is at least two, and they are equally spaced on the pressure-bearing door leaf (1).

4. The emergency escape pressure door for easy passage as described in claim 2, characterized in that, The pressure-bearing door leaf (1) also includes a door handle (1.2) and a rotary translation mechanism; the door handle (1.2) is connected to the latch (1.1) through the rotary translation mechanism.

5. The emergency escape pressure door for easy passage as described in claim 2, characterized in that, The pressure-bearing door leaf (1) and the door frame (3) are magnetically connected.

6. The emergency escape pressure door for easy passage as described in claim 4 or 5, characterized in that, The pressure-bearing door leaf (1) is equipped with reinforcing ribs inside.

7. The emergency escape pressure door for easy passage as described in claim 6, characterized in that, It also includes a structural adhesive layer (4); the structural adhesive layer (4) is provided on both the pressure-bearing door leaf (1) and the door frame (3), and the airtight membrane (2) is connected to each of the structural adhesive layers (4).

8. The emergency escape pressure door for easy passage as described in claim 7, characterized in that, When the width of the gap between the pressure-bearing door leaf (1) and the door frame (3) when they are closed is greater than or equal to 1 cm, a steel strip for bonding the airtight membrane (2) is also included. The width of the steel strip is greater than the width of the gap, and it is positioned opposite the gap on the side of the pressure-bearing door leaf (1) and the door frame (3) located indoors, and is bonded to the airtight membrane (2) through the structural adhesive layer (4).

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