Window equipment suitable for pressurized cabin and pressurized cabin

Abstract

The window equipment suitable for the pressurized cabin comprises a window frame body, a control device, a power source, a switch and a detection device, the window frame body is used for being connected with a window hole in the pressurized cabin body, a frame body opening is formed in the window frame body, and the control device is connected with the power source; the window frame body is connected with a flexible film layer, the flexible film layer covers an opening of the frame body, and an electric heating wire is arranged in the flexible film layer; the switch is connected with the power supply, two ends of the heating wire are respectively connected with the switch and the power supply, the control device is respectively connected with the switch and the detection device, and the detection device is used for detecting environment information in the pressurized cabin and sending the information to the control device; when the environment information meets the preset condition, the control device controls the switch to be closed so that the electric heating wire can be heated to melt the flexible film layer. The safety of the pressurized cabin can be improved.

Description

Technical Field

[0001] This invention relates to the field of pressurized chamber technology, and more specifically to a window device and a pressurized chamber body suitable for pressurized chamber bodies. Background Technology

[0002] The core characteristic of pressurized chambers (such as aviation pressurized simulators and high-pressure airtightness test chambers) is the maintenance of a stable positive pressure difference between the inside and outside of the chamber. Normal entry and exit for personnel requires the depressurization system to reduce the internal pressure to equilibrium with the outside. In emergency scenarios such as fires, excessively long depressurization times can prevent personnel from evacuating quickly, and the high-temperature smoke inside cannot be expelled in time, easily leading to secondary disasters such as asphyxiation and fire spread. Existing pressurized chambers typically have emergency pressure relief valves and escape windows. In the event of a fire, the fire control system activates the emergency pressure relief valve to begin depressurization, but this process is usually time-consuming. Escape windows require personnel to use a hammer to break them, and only after the pressure inside and outside the chamber is balanced can the escape window be opened to escape. Furthermore, escape windows are mostly made of glass; when broken, due to the high internal pressure, glass shards may fly out, posing a threat to personnel, resulting in low safety for pressurized chambers. Summary of the Invention

[0003] This invention provides a window device and a pressurized chamber suitable for pressurized chambers, which can improve the safety of pressurized chambers.

[0004] In a first aspect, the window device for pressurized chambers provided by the present invention includes a window frame, a control device, a power supply, a switch, and a detection device. The window frame is used to connect with the window opening on the pressurized cabin. The window frame has a frame opening and a flexible membrane layer is connected to the window frame. The flexible membrane layer covers the frame opening and has heating wires inside. The switch is connected to the power supply, and the two ends of the heating wire are respectively connected to the switch and the power supply. The control device is respectively connected to the switch and the detection device. The detection device is used to detect environmental information inside the pressurized chamber and send it to the control device. When the environmental information meets the preset conditions, the control device controls the switch to close so that the heating wire heats up to melt the flexible film layer.

[0005] In an optional embodiment, the window frame includes an outer window frame, an inner window frame, and fasteners. The outer window frame has an outer frame opening, and the inner window frame has an inner frame opening. The flexible membrane layer is located between the outer window frame and the inner window frame. The fasteners connect the outer window frame and the inner window frame so that the outer window frame and the inner window frame clamp the flexible membrane layer. The outer frame opening and the inner frame opening form the frame opening. The outer window frame is used to connect to the window opening on the pressurized cabin.

[0006] In an optional embodiment, the window device includes a plurality of support strips located within the outer frame opening, with both ends of the support strips connected to the inner wall of the outer frame opening.

[0007] In an optional embodiment, a plurality of the support bars are arranged in parallel, and the greater the distance between the support bars and the center of the outer frame opening, the smaller the distance between the support bars and the plane where the inner window frame is located.

[0008] In an optional embodiment, one side surface of the flexible membrane layer is attached to one side of the support strip.

[0009] In an optional embodiment, the window device includes a flexible sealing ring located between the outer window frame and the inner window frame, and the fastener passes through the inner window frame, the flexible membrane layer, the flexible sealing ring, and the outer window frame to form a connection.

[0010] In an optional embodiment, the window device includes a protective frame, one side of which is rotatably connected to the window frame. The protective frame has a protective opening, and a protective net is connected to the protective frame, covering the protective opening.

[0011] In an optional embodiment, the detection device includes a smoke detection sensor and a temperature sensor, the environmental information being the concentration of smoke particles inside the pressurized chamber and the temperature inside the chamber, and the preset conditions being that the concentration of smoke particles inside the chamber is greater than a preset concentration and the temperature inside the chamber is greater than a preset temperature.

[0012] In an optional embodiment, the heating wire includes multiple horizontal segments and multiple vertical segments connected end to end, with the multiple horizontal segments spaced apart and the vertical segments connecting adjacent horizontal segments.

[0013] Secondly, the pressurized cabin provided by the present invention includes a cabin body and a window device as described in any one of the first aspects. The cabin body is hollow, and a window opening is provided in the side wall of the cabin body. The window device is disposed in the window opening.

[0014] In this invention, compared to related technologies, the window device suitable for pressurized chambers includes a window frame, a control device, a power supply, a switch, and a detection device. The window frame connects to the window opening on the pressurized chamber, and has an opening. A flexible membrane layer is connected to the window frame, covering the opening, and a heating wire is installed inside the flexible membrane layer. The switch and power supply are connected, and the two ends of the heating wire are connected to the switch and the power supply, respectively. The control device is connected to the switch and the detection device, and the detection device detects environmental information inside the pressurized chamber and sends it to the control device. When the environmental information meets preset conditions, the control device controls the switch to close, causing the heating wire to heat up and melt the flexible membrane layer. This invention, while ensuring the airtightness of the pressurized chamber during normal use, can quickly melt the flexible membrane layer to form a pressure relief and smoke exhaust port when a fire is detected, shortening the pressure relief time inside the chamber. Furthermore, the melted flexible membrane layer will not splatter and cause injury, thus improving the safety of the pressurized chamber. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the pressurized chamber provided in this invention; Figure 2 This is a schematic diagram of the structure of a window device suitable for pressurized cabins according to an embodiment of the present invention; Figure 3 This is a schematic diagram of another perspective of one embodiment of the window device suitable for pressurized cabins provided in this invention; Figure 4 This is a cross-sectional schematic diagram of one embodiment of a window device suitable for pressurized cabins provided in this invention; Figure 5 yes Figure 4 A detailed structural diagram of region A in the middle; Figure 6 This is a schematic diagram showing the connection of the flexible membrane, heating wire, switch, power supply, control device, and detection device in the window device suitable for pressurized chambers provided in the embodiments of the present invention. Figure 7 This is a schematic diagram of the process of melting a flexible film layer in a window device suitable for pressurized cabins provided in an embodiment of the present invention. Detailed Implementation

[0017] It should be noted that the principles of the present invention are illustrated by way of example implemented in a suitable computing environment. The following description is based on the specific embodiments of the invention illustrated, and should not be construed as limiting the invention to other specific embodiments not detailed herein.

[0018] In the following description of the present invention, references are made to "some embodiments," which describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0019] In the following description of the present invention, the terms "first, second, third" are used only to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to limit the invention.

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the embodiments of the present invention, see Figures 1-6 The pressurized chamber 20 includes a main chamber 22 and a window device 10. The main chamber 22 is hollow, and a window opening 23 is provided in the side wall 21 of the main chamber 22. The window device 10 is installed in the window opening 23. The pressurized chamber 20 forms a sealed space.

[0023] In this embodiment of the invention, the window device 10 includes a window frame, a control device 173, a power supply 172, a switch 171, and a detection device 174.

[0024] The window frame is used to connect to the window opening 23 on the pressurized chamber 20. An opening is provided on the window frame, and a flexible membrane layer 140 is connected to the window frame, covering the opening. A heating wire 142 is installed inside the flexible membrane layer 140. A switch 171 and a power supply 172 are connected. The two ends of the heating wire 142 are connected to the switch 171 and the power supply 172, respectively. A control device 173 is connected to the switch 171 and a detection device 174. The detection device 174 detects environmental information inside the pressurized chamber 20 and sends it to the control device 173. When the environmental information meets preset conditions, the control device 173 controls the switch 171 to close, causing the heating wire 142 to heat up and melt the flexible membrane layer 140.

[0025] The flexible membrane layer 140 includes an outer membrane and an inner membrane, with a heating wire 142 located between the outer and inner membranes. The outer and inner membranes are bonded together by heat welding or a high-strength, heat-resistant adhesive. The material of the flexible membrane layer 140 can be ETFE (ethylene-tetrafluoroethylene copolymer membrane).

[0026] Furthermore, the heating wire 142 is wrapped with an insulating layer, which may be a fluorinated ethylene propylene copolymer.

[0027] The frame opening can be rectangular. Of course, the frame opening can also be circular or other shapes.

[0028] In one specific embodiment, the flexible membrane layer 140 can be connected to the inner wall of the frame opening by means of adhesive bonding or other methods.

[0029] In another specific embodiment, the window frame includes an outer window frame 110, an inner window frame 120, and fasteners 153. The outer window frame 110 has an outer frame opening 111, and the inner window frame 120 has an inner frame opening 121. A flexible membrane layer 140 is located between the outer window frame 110 and the inner window frame 120. Fasteners 153 connect the outer window frame 110 and the inner window frame 120 so that the outer window frame 110 and the inner window frame 120 clamp the flexible membrane layer 140 to achieve an airtight seal. The outer frame opening 111 and the inner frame opening 121 are connected to form a frame opening. The outer window frame 110 is used to connect with the window opening 23 on the pressurized cabin 20.

[0030] The inner window frame 120 is located inside the main body 22 of the cabin, and the outer window frame 110 is located outside the main body 22 of the cabin.

[0031] The fastener 153 can be a screw. The flexible membrane layer 140 has multiple threaded holes 141. The fastener 153 passes sequentially through the inner window frame 120, the threaded holes 141 on the flexible membrane layer 140, and the outer window frame 110 to connect the inner window frame 120, the flexible membrane layer 140, and the outer window frame 110. Alternatively, the fastener 153 can also pass only through the inner window frame 120 and the outer window frame 110 to connect the inner window frame 120, the flexible membrane layer 140, and the outer window frame 110.

[0032] Both the outer frame opening 111 and the inner frame opening 121 are rectangular openings, and the outer frame opening 111 and the inner frame opening 121 have the same size.

[0033] The outer window frame 110 and the inner window frame 120 are both made of metal, for example, aluminum alloy or stainless steel.

[0034] In this embodiment of the invention, the window device 10 includes a plurality of support bars 112, which are located inside the outer frame opening 111, and both ends of the support bars 112 are respectively connected to the inner wall of the outer frame opening 111. The support bars 112 can be cuboids. Of course, the support bars 112 can also be cylindrical, depending on the specific situation.

[0035] The two ends of the support strip 112 can be detachably connected to the inner side of the outer window frame 110, or the support strip 112 and the outer window frame 110 can be integrally formed.

[0036] In one specific embodiment, multiple support bars 112 are arranged in parallel and at equal intervals. The projection points of the multiple support bars 112 lie on a straight line. The multiple support bars 112 are evenly distributed along the horizontal or vertical direction.

[0037] In another specific embodiment, multiple support bars 112 are arranged horizontally and spaced apart vertically. The multiple support bars 112 are arranged in parallel, and the greater the distance between the support bar 112 and the center of the outer frame opening 111, the smaller the distance between the support bar 112 and the plane containing the inner window frame 120. The projection points of the multiple support bars 112 in the axial direction are located on an arc. The plane containing the inner window frame 120 is the surface of the inner window frame 120.

[0038] In one specific embodiment, the extension direction of the support strip 112 is arc-shaped, and the surface of the flexible membrane layer 140 supported by the multiple support strips 112 is located on a spherical surface. The radius of curvature of the spherical surface can be set according to specific circumstances. The surface of the flexible membrane layer 140 supported by the multiple support strips 112 forms a spherical surface, which can avoid stress concentration on the flexible membrane layer 140 and damage caused by stress.

[0039] Furthermore, the outer frame opening 111 is vertically divided into three equally spaced opening regions of the same size. These three regions include a central region and edge regions. The spacing between two adjacent support strips 112 in the central region is smaller than the spacing between two adjacent support strips 112 in the edge regions. The denser arrangement of support strips 112 in the central region effectively protects the flexible membrane layer 140.

[0040] Specifically, the pressurized chamber 20 forms a sealed space, and the air pressure inside the pressurized chamber 20 is higher than the air pressure outside the pressurized chamber 20, thereby pressing the flexible membrane layer 140 onto multiple support bars 112, which in turn support the flexible membrane layer 140.

[0041] In this embodiment of the invention, one side surface of the flexible film layer 140 is attached to one side of the support strip 112. Specifically, one side surface of the flexible film layer 140 is attached to the concave side of the arc surface formed by the plurality of support strips 112.

[0042] In this embodiment of the invention, the window device 10 includes a flexible sealing ring 160, which is located between the outer window frame 110 and the inner window frame 120. Fasteners 153 pass through the inner window frame 120, the flexible membrane layer 140, the flexible sealing ring 160, and the outer window frame 110 to form a connection.

[0043] The flexible sealing ring 160 can be made of rubber or other flexible materials.

[0044] In this embodiment of the invention, the window device 10 includes a protective frame 130, one side of which is rotatably connected to a window frame. A protective opening is provided on the protective frame 130, and a protective net 131 is connected to the protective frame 130, covering the protective opening. The protective net 131 has a mesh structure, and the mesh on the protective net 131 consists of square grids of the same size. The protective net 131 is formed by multiple crisscrossing metal wires.

[0045] In one specific embodiment, the protective net 131 is made of stainless steel, the square grid on the protective net 131 has a side length of 5mm to 10mm, the wire diameter of the metal wire is 1.2mm to 1.5mm, and the edge of the protective net 131 is welded and fixed to the protective frame 130, which can intercept objects carried out by the high-pressure airflow inside the cabin.

[0046] Specifically, one side of the protective frame 130 is rotatably connected to one side of the outer window frame 110 via a hinge 151. The hinge 151 is made of stainless steel and has rust-proof and high-temperature resistance properties. The other side of the protective frame 130 is provided with a locking mechanism 152, which is used to lock the outer window frame 110 and the inner window frame 120. Specifically, the locking mechanism 152 includes a handle, a pivot, and a latch. The pivot is rotatably connected to the protective frame 130, and the handle and latch are connected to its two ends respectively. The outer window frame 110 has a recessed receiving cavity, and the inner wall of the receiving cavity has a groove. When the protective frame 130 rotates to fit against the outer window frame 110, the latch is located in the receiving cavity. Rotating the handle causes the latch to extend into the groove, preventing the locking mechanism 152 from disengaging from the outer window frame 110.

[0047] In this embodiment of the invention, the detection device 174 includes a smoke detection sensor and a temperature sensor. The environmental information is the concentration of smoke particles inside the pressurized chamber 20 and the temperature inside the chamber. The preset conditions are that the concentration of smoke particles inside the chamber is greater than a preset concentration and the temperature inside the chamber is greater than a preset temperature.

[0048] The preset concentration can be 3 mg / m³ or other values, and the preset temperature can be 60 degrees or other values, which can be set according to the specific situation.

[0049] Among them, the smoke detection sensor is a sensor specifically designed to detect the concentration of smoke particles in the environment and output a trigger signal. It is mainly used in scenarios such as fire early warning and security alarm. It is also a typical switch output sensor that can directly or indirectly trigger actuators such as alarm lights, solenoid valves, relays, and fire switches.

[0050] The control device 173 can be a microcontroller. When the concentration of smoke particles in the chamber is greater than a preset concentration and the temperature in the chamber is greater than a preset temperature, the control device 173 turns on the switch 171, which conducts the heating wire 142, and the heating wire 142 heats up to melt the flexible film layer 140.

[0051] Furthermore, the control device 173 is connected to the fire control system. When the environmental information meets the preset conditions, the control device 173 activates the fire control system to extinguish the fire.

[0052] In this embodiment of the invention, the heating wire 142 includes multiple horizontal segments 144 and multiple vertical segments 143 connected end to end. The multiple horizontal segments 144 are spaced apart, and the vertical segments 143 connect two adjacent horizontal segments 144.

[0053] Specifically, multiple horizontal segments 144 are of the same length and are evenly spaced, with the ends of adjacent horizontal segments 144 aligned. The multiple horizontal segments 144 are arranged sequentially in the vertical direction.

[0054] Furthermore, each horizontal segment 144 corresponds to a support strip 112. The horizontal segment 144 and the corresponding support strip 112 sandwich the flexible membrane layer 140 from both sides. Specifically, the projection of the horizontal segment 144 onto the plane of the inner window frame 120 is located on the projection of the support strip 112 corresponding to the horizontal segment 144 onto the plane of the inner window frame 120. The support strip 112 can support the horizontal segment 144 and prevent it from breaking.

[0055] Under normal operating conditions, the protective frame 130 is closed by the locking mechanism, and the flexible membrane layer is pressed by screws to form an airtight structure, maintaining the pressure difference between the inside and outside of the pressurized chamber.

[0056] In fire-related situations, such as Figure 7 As shown, the control method for the window device includes: 201. The detection device detects environmental information inside the pressurized chamber and sends it to the control device.

[0057] 202. The control device determines whether the environmental information meets the preset conditions.

[0058] In one specific embodiment, the preset conditions are that the concentration of smoke particles inside the chamber is greater than a preset concentration and the temperature inside the chamber is greater than a preset temperature. The preset concentration can be 3 mg / m³ or other values, and the preset temperature can be 60 degrees Celsius or other values, depending on the specific circumstances.

[0059] Furthermore, the detection device includes multiple smoke detection sensors, multiple temperature sensors, and a pressure sensor. The smoke detection sensors and temperature sensors are spaced apart within the pressurized chamber, and the pressure sensor measures the internal pressure. The concentration detection values ​​from each smoke detection sensor are acquired, and the standard atmospheric pressure corresponding to the preset concentration is determined. Based on the standard atmospheric pressure and the internal pressure, each concentration detection value is corrected to obtain multiple concentration correction values. The internal smoke particle concentration is then determined based on these correction values. The concentration correction value is calculated as: Concentration correction value = Concentration detection value * Standard atmospheric pressure / Internal pressure. Specifically, the pressure in the pressurized chamber is adjusted to the standard atmospheric pressure, multiple fire scenarios are simulated, and the median concentration of the smoke detection sensors under each fire scenario is obtained. The average of these median concentrations is then used to determine the preset concentration.

[0060] In one specific embodiment, the median of multiple concentration correction values ​​is determined as the cabin smoke particle concentration.

[0061] Furthermore, a camera is installed inside the pressurized chamber to acquire indoor images captured by the camera. The indoor images are then input into a human posture detection model to detect the human posture in the indoor images. When the human posture in the indoor images is a lying posture, it is determined whether the environmental information meets the preset conditions.

[0062] 203. If the environmental information meets the preset conditions, the control switch is closed to heat the heating wire to melt the flexible film layer.

[0063] After the flexible membrane layer melts and breaks, it forms a pressure relief and smoke exhaust port, allowing high-pressure air / smoke inside the cabin to be rapidly discharged outdoors. The pressure difference between the cabin and the outside reaches equilibrium within 1 minute, facilitating personnel evacuation. During the high-pressure airflow jet, objects inside the cabin are intercepted by the metal protective mesh of the protective frame, preventing them from colliding with personnel and equipment outside the cabin.

[0064] 204. The control device issues a fire warning.

[0065] Fire alerts can be broadcast as an audio message. They are used to notify people inside the building of a fire and guide them in taking appropriate action.

[0066] During maintenance, release the locking mechanism and open the protective frame; remove the fixing screws of the flexible membrane layer, replace the melted flexible membrane layer, and complete the maintenance.

[0067] The pressurization chamber of this invention adopts a two-layer structure design of membrane structure window + protective frame, which takes into account the three core requirements of airtightness, pressure relief and smoke exhaust, and protection against jet damage. The design of the support strip dividing the stress surface of the membrane solves the problem of easy membrane damage under high pressure in the pressurization chamber. The combination of detachable membrane structure window and openable protective frame greatly reduces maintenance costs and time. The way the heating wire is arranged along the support strip ensures that the membrane melting position is accurate and the pressure relief and smoke exhaust port is formed regularly, thus improving the pressure relief efficiency.

[0068] This invention provides a window device suitable for pressurized chambers. While ensuring the airtightness of the pressurized chamber during normal use, it can quickly melt and form a pressure relief and smoke exhaust port in case of fire, shortening the depressurization time inside the chamber. At the same time, it avoids safety accidents caused by high-pressure jets through a protective structure, optimizes the stress design of the membrane structure and simplifies the maintenance process, thereby improving the overall safety and practicality.

[0069] The beneficial effects of this invention are as follows: Airtightness and pressure relief / smoke exhaust are both achieved: Under normal operating conditions, the flexible membrane layer presses against the flexible sealing ring to maintain the pressure difference inside the pressurized chamber (withstanding pressure difference ≥20kPa). In case of fire, the heating wire melts quickly to form a smoke exhaust port, reducing the pressure relief time from the traditional 3 to 5 minutes to 1 minute, greatly improving the efficiency of personnel evacuation.

[0070] High safety protection: The metal protective net of the protective frame can effectively intercept objects carried out of the cabin by the high-pressure airflow, avoiding secondary accidents caused by object impact.

[0071] Easy and low-cost maintenance: The membrane structure window is detachable. If it melts, only the membrane needs to be replaced, without disassembling the entire window frame.

[0072] The membrane structure is more stable under stress: the support strips divide the entire membrane into multiple small stress surfaces, dispersing the stress brought by the high pressure inside the chamber and preventing the membrane from being damaged due to the excessive span of the stress surfaces.

[0073] Compared to related technologies, the window device suitable for pressurized chambers includes a window frame, a control device, a power supply, a switch, and a detection device. The window frame connects to the window opening on the pressurized chamber and has an opening. A flexible membrane layer is connected to the window frame, covering the opening, and contains a heating wire. The switch and power supply are connected, and the two ends of the heating wire are connected to the switch and power supply, respectively. The control device connects to the switch and the detection device, which detects environmental information inside the pressurized chamber and sends it to the control device. When the environmental information meets preset conditions, the control device controls the switch to close, causing the heating wire to heat up and melt the flexible membrane layer. This invention, while ensuring the airtightness of the pressurized chamber during normal use, can quickly melt the flexible membrane layer to form a pressure relief and smoke exhaust port when a fire is detected, shortening the depressurization time inside the chamber. Furthermore, the melted flexible membrane layer will not splatter and cause injury, thus improving the safety of the pressurized chamber.

[0074] The above provides a detailed description of a window device suitable for pressurized cabins provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0075] It should be noted that when the above embodiments of the present invention are applied to specific products or technologies, and user-related data is involved, user permission or consent is required, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

Claims

1. A window device suitable for pressurized cabins, characterized in that, The window equipment includes a window frame, a control device, a power supply, a switch, and a detection device. The window frame is used to connect with the window opening on the pressurized cabin. The window frame has a frame opening and a flexible membrane layer is connected to the window frame. The flexible membrane layer covers the frame opening and has heating wires inside. The switch is connected to the power supply, and the two ends of the heating wire are respectively connected to the switch and the power supply. The control device is respectively connected to the switch and the detection device. The detection device is used to detect environmental information inside the pressurized chamber and send it to the control device. When the environmental information meets the preset conditions, the control device controls the switch to close so that the heating wire heats up to melt the flexible film layer.

2. The window device suitable for pressurized cabins according to claim 1, characterized in that, The window frame includes an outer window frame, an inner window frame, and fasteners. The outer window frame has an outer frame opening, and the inner window frame has an inner frame opening. The flexible membrane layer is located between the outer window frame and the inner window frame. The fasteners connect the outer window frame and the inner window frame so that the outer window frame and the inner window frame clamp the flexible membrane layer. The outer frame opening and the inner frame opening form the frame opening. The outer window frame is used to connect with the window opening on the pressurized cabin.

3. The window device suitable for pressurized cabins according to claim 2, characterized in that, The window device includes multiple support bars located inside the outer frame opening, with both ends of the support bars connected to the inner wall of the outer frame opening.

4. The window device for pressurized chambers according to claim 3, characterized in that, The multiple support bars are arranged in parallel. The greater the distance between the support bar and the center of the outer frame opening, the smaller the distance between the support bar and the plane where the inner window frame is located.

5. The window device for pressurized chambers according to claim 3, characterized in that, One side of the flexible membrane layer is attached to one side of the support strip.

6. The window device suitable for pressurized cabins according to claim 2, characterized in that, The window device includes a flexible sealing ring located between the outer window frame and the inner window frame, and the fastener passes through the inner window frame, the flexible membrane layer, the flexible sealing ring, and the outer window frame to form a connection.

7. The window device suitable for pressurized cabins according to claim 1, characterized in that, The window device includes a protective frame, one side of which is rotatably connected to the window frame. A protective opening is provided on the protective frame, and a protective net is connected to the protective frame, covering the protective opening.

8. The window device for pressurized chambers according to claim 1, characterized in that, The detection device includes a smoke detection sensor and a temperature sensor. The environmental information is the concentration of smoke particles inside the pressurized chamber and the temperature inside the chamber. The preset conditions are that the concentration of smoke particles inside the chamber is greater than a preset concentration and the temperature inside the chamber is greater than a preset temperature.

9. The window device for a pressurized cabin according to claim 1, characterized in that, The heating wire includes multiple horizontal segments and multiple vertical segments connected end to end. The multiple horizontal segments are spaced apart, and the vertical segments connect two adjacent horizontal segments.

10. A pressurized chamber, characterized in that, The pressurized cabin includes a cabin body and a window device as described in any one of claims 1-9. The cabin body is hollow, and a window opening is provided in the side wall of the cabin body. The window device is disposed in the window opening.

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