Unpowered heat and smoke exhaust window

Abstract

The utility model relates to the technical field of fire-fighting smoke exhaust windows, and provides an unpowered heat and smoke exhaust window which comprises a window body auxiliary frame, an upper window sash and a lower window sash are arranged on the window body auxiliary frame, the upper window sash is a bottom-hung window, a temperature sensing pushing assembly is arranged on the window body auxiliary frame and used for making contact with the upper window sash and pushing the upper window sash out in the case of a fire, and a rear supporting assembly is arranged on the window body auxiliary frame and used for supporting the lower window sash in the case of a fire. The rear supporting assembly is detachably connected with the adjusting assembly, the adjusting assembly is arranged on the window auxiliary frame, a temperature sensing pulling assembly is arranged in the adjusting assembly, the temperature sensing pulling assembly is connected with the upper window sash and used for pulling the upper window sash to reset after a fire disaster is finished, and the window auxiliary frame is connected with the upper window sash through the auxiliary supporting assembly. And a clamping assembly is arranged between the window body auxiliary frame and the upper window sash for mutual clamping. According to the utility model, the window body can be opened and closed only according to the temperature change of smoke without electric drive, so that the situation that the window body cannot be opened and the smoke cannot be discharged due to power interruption in a fire disaster is avoided, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire smoke exhaust window technology, specifically to a non-powered heat and smoke exhaust window. Background Technology

[0002] A heat exhaust and smoke extraction window is a building facility that combines heat exhaust and smoke extraction functions. It is mainly used to exhaust smoke and high-temperature gases during a fire, helping people evacuate and firefighting. It is usually installed on the top or side wall of a building. Normally, it can ventilate and exhaust heat. In case of fire, it opens automatically or manually to quickly exhaust dense smoke and heat, improve visibility and reduce indoor temperature, ensure the safety of people and reduce property damage. With the increasing emphasis on building fire safety, heat exhaust and smoke extraction window technology is gradually developing towards intelligence and green technology. The current mainstream technologies include: motor-driven smoke extraction windows and manually operated natural smoke extraction windows.

[0003] However, existing smoke exhaust windows have the following drawbacks: they rely on external power, and electric smoke exhaust windows require continuous power supply, which may cause failure if the power is interrupted during a fire; they have poor adaptability, and existing natural smoke exhaust windows are not staffed, so they cannot be opened in time during a fire, and they are easily affected by the ambient temperature, resulting in unstable smoke exhaust efficiency.

[0004] Therefore, a non-powered heat and smoke exhaust window is proposed to address the above problems. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a non-powered heat and smoke exhaust window. This invention can open and close the window without the need for electricity, based solely on the temperature changes of the smoke. This avoids situations where power outages during a fire prevent the window from opening and smoke from being exhausted, thus improving practicality.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A non-powered heat and smoke exhaust window includes a window sub-frame installed inside a window opening in a building. An upper window sash and a lower window sash are respectively installed above and below the window sub-frame. The upper window sash is a bottom-hung window, and the lower window sash is a casement window. The bottom side of the upper window sash is rotatably connected to the window sub-frame. A temperature-sensing push component is installed on the window sub-frame to contact the upper window sash and push it out during a fire, allowing the upper window sash to flip downwards due to gravity. A rear support component is installed on the upper side of the window sub-frame away from the upper window sash. The rear support component is detachably connected to an adjustment component, which is installed on the window sub-frame. A temperature-sensing pull component is installed within the adjustment component and is connected to the upper window sash. This heat-sensing pull component is used to pull the upper window sash back to its original position to close the upper window after the fire ends. The sides of the window sub-frame and the upper window sash that are close to each other are connected by an auxiliary support component. A locking component is also installed between the window sub-frame and the upper window sash to lock together. This locking component can automatically disconnect during a fire and reconnect after the fire ends.

[0008] Preferably, the temperature-sensing push assembly includes a push mounting block, which is disposed on the upper side of the window sub-frame that contacts the upper window sash, without affecting the fit between the upper window sash and the window sub-frame. The push mounting block is L-shaped, and an outward sliding groove is provided at the end of the push mounting block near the upper window sash. An outward guide rod is disposed in the outward sliding groove, and a first double-stroke memory spring is sleeved on the outward guide rod. The first double-stroke memory spring includes a low-temperature mode and a high-temperature mode. The length of the low-temperature mode of the first double-stroke memory spring is shorter than the length of its high-temperature mode. One end of the first double-stroke memory spring is disposed in the outward sliding groove at the end away from the upper window sash, and the other end of the first double-stroke memory spring is disposed with an outward push plate. The outward push plate is slidably disposed in the outward sliding groove and can contact the upper window sash, for applying a pushing force to the upper window sash when the first double-stroke memory spring is in its high-temperature mode.

[0009] Preferably, several ventilation holes are opened through the side wall of the outward sliding groove, and the ventilation holes do not affect the sliding of the outward sliding piece in the outward sliding groove; the outward sliding piece is set as a circular piece to avoid the first double-stroke memory spring from interfering with the movement of the push mounting block when it drives the outward sliding piece back to its original position in the low temperature state; a protruding plate is set on the upper window sash at the position corresponding to the outward sliding piece to increase the contact area with the outward sliding piece and facilitate the pushing out of the upper window sash.

[0010] Preferably, the adjustment assembly includes an adjustment rod, one end of which is rotatably mounted on the window subframe on one side of the push mounting block. A pull-back sliding groove is formed along the length of the adjustment rod, and an adjustment threaded rod is rotatably mounted within the pull-back sliding groove. The axis of the adjustment threaded rod is parallel to the length of the pull-back sliding groove. An adjustment knob is coaxially mounted on the end of the adjustment threaded rod away from the window subframe after passing through the pull-back sliding groove. Rotating the adjustment knob can drive the adjustment threaded rod to rotate. A pull-back connecting block is slidably mounted within the pull-back sliding groove, and the pull-back connecting block is threadedly connected to the adjustment threaded rod. The adjustment threaded rod can adjust the position of the pull-back connecting block within the pull-back sliding groove by rotation. Several vent holes are formed through the side wall of the pull-back sliding groove, and the vent holes do not affect the sliding of the pull-back connecting block within the pull-back sliding groove.

[0011] Preferably, the maximum opening angle between the upper window sash and the window subframe is set to 45°.

[0012] Preferably, the temperature-sensing pull assembly includes a second double-stroke memory spring, which is sleeved on the outside of the adjusting threaded rod. One end of the second double-stroke memory spring is set on the pull-back connecting block, and the other end of the second double-stroke memory spring is connected to one end of the pull-back rope, and the other end of the pull-back rope is connected to the upper window sash.

[0013] Preferably, it also includes two limiting rods, which are set on the adjusting rod and the axes of the limiting rods are perpendicular to the axis of the adjusting threaded rod. A gap is left between the two limiting rods, through which the pull-back rope passes. The limiting rods are used to support the pull-back rope and prevent the pull-back rope from getting tangled.

[0014] Preferably, the second double-stroke memory spring includes a low-temperature mode and a high-temperature mode. The length of the low-temperature mode of the second double-stroke memory spring is less than the length of its high-temperature mode, and the difference in length satisfies the requirement that the upper window sash and the window sub-frame can form a 45° angle.

[0015] Preferably, the rear support assembly includes a rear support rod, one end of which is rotatably connected to the window sub-frame, and the other end of which is connected to an adjusting rod via a connecting bolt, such that the length direction of the adjusting rod is perpendicular to the plane of the window sub-frame, i.e., the rear support rod, the adjusting rod, and one side of the window sub-frame together form a right-angled triangle; after the connecting bolt disconnects the connection between the adjusting rod and the rear support rod, due to gravity, both the rear support rod and the adjusting rod can hang down and fit against the window sub-frame, making it easy to pick up and install.

[0016] Preferably, when the upper window sash is closed relative to the window sub-frame, a cavity is left between it and the window sub-frame. An auxiliary support component is set in the cavity, including an auxiliary pull rod. One end of the auxiliary pull rod is rotatably mounted on the window sub-frame, and the other end of the auxiliary pull rod is slidably mounted in an auxiliary pull groove. The auxiliary pull groove is set on the upper window sash. When the upper window sash is opened, the auxiliary pull rod, the auxiliary pull groove, and one side of the window sub-frame form a triangle, and the length of the auxiliary pull rod satisfies that the angle between the auxiliary pull rod and the auxiliary pull groove is always greater than 90°.

[0017] Preferably, the snap-fit ​​assembly includes a snap-fit ​​fixing block and a snap-fit ​​deformable piece. The snap-fit ​​fixing block is set on the sub-frame of the window and has a slot. The snap-fit ​​deformable piece is set on the upper window sash, and when the upper window sash is closed, the snap-fit ​​deformable piece can be inserted into the slot of the snap-fit ​​fixing block. The snap-fit ​​deformable piece is made of a two-way memory alloy material, including a low-temperature mode and a high-temperature mode. In the low-temperature mode, the snap-fit ​​deformable piece has snap-fit ​​blocks on both sides, which can snap-fit ​​with the slot of the snap-fit ​​fixing block. In the high-temperature mode, the snap-fit ​​deformable piece deforms on both sides into a state without snap-fit ​​blocks, at which time there is no snap-fit ​​between the snap-fit ​​deformable piece and the snap-fit ​​fixing block. A vent hole is formed through the groove wall of the slot.

[0018] Preferably, sealing strips are provided on the edges of both the lower and upper window sashes to ensure a sealed contact with the window subframe when the window is closed; double-glazed windows are provided on the outer sides of both the lower and upper window sashes.

[0019] Preferably, the phase transition temperature of the first double-pass memory spring, the second double-pass memory spring, and the snap-fit ​​deformable piece in their low-temperature states is set to be less than 50°C; and the phase transition temperature of the first double-pass memory spring, the second double-pass memory spring, and the snap-fit ​​deformable piece in their high-temperature states is set to be greater than 100°C.

[0020] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages:

[0021] This utility model features an upper and lower window sash. The upper sash is used for automatic heat and smoke exhaust during a fire, while the lower sash is used for daily ventilation, making it highly practical. The upper sash can be tilted downwards, opening automatically under its own weight, eliminating the need for manual operation and preventing losses caused by operators forgetting to open the smoke exhaust window during a fire, thus improving the device's usability. By limiting the maximum tilting angle between the upper sash and the window frame to 45°, the reverse interference of the chimney effect is avoided, preventing external winds from blowing smoke back into the building, thus improving the device's safety. Finally, by incorporating a temperature-sensing actuator, the upper sash can be tilted away from the building when a fire occurs and the device comes into contact with high-temperature smoke. The upper window sash automatically flips open by pushing the subframe away and using gravity. A temperature-sensing pull component pulls the upper window sash back to its initial closed position after the high-temperature smoke has dissipated, achieving automatic closing. An auxiliary support component allows the upper window sash to slowly flip under gravity, avoiding kinetic energy impact, while the auxiliary temperature-sensing pull component provides support for the upper window sash, improving stability. An adjustment component allows for timely adjustment of the temperature-sensing pull component's position, improving the sealing of the upper window sash when closed and extending the device's lifespan, resulting in better economic efficiency. A snap-fit ​​component improves the stability of the connection between the upper window sash and the subframe without affecting the device's use during heat and smoke exhaust, enhancing practicality. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0025] Figure 3 This is a schematic side view of the overall structure of an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram showing the position of the temperature-sensing actuating component in an embodiment of the present invention;

[0027] Figure 5 This is a front view schematic diagram of the temperature-sensing push component of the upper window sash after it is closed, according to an embodiment of the present utility model;

[0028] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure along direction A in the middle;

[0029] Figure 7 This is a schematic diagram showing the connection between the rear support assembly and the adjustment assembly in an embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram showing the positions of the temperature-sensing pull component and the adjustment component in an embodiment of the present invention. Figure 1 ;

[0031] Figure 9 This is a schematic diagram showing the positions of the temperature-sensing pull component and the adjustment component in an embodiment of the present invention. Figure 2 ;

[0032] Figure 10 This is a schematic diagram showing the position of the auxiliary support component in an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram showing the position of the snap-fit ​​component in an embodiment of the present utility model;

[0034] Figure 12 This is a schematic diagram of the snap-fit ​​deformable piece in a low-temperature state according to an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the snap-fit ​​deformable piece in a high-temperature state according to an embodiment of the present invention.

[0036] In the diagram, 1. Window subframe; 2. Upper window sash; 3. Lower window sash; 4. Temperature-sensing push assembly; 5. Rear support assembly; 6. Adjustment assembly; 7. Temperature-sensing pull assembly; 8. Auxiliary support assembly; 9. Snap-fit ​​assembly; 10. Window opening; 41. Push mounting block; 42. Outward sliding groove; 43. Outward guide rod; 44. First double-stroke memory spring; 45. Outward push plate; 46. Vent hole one; 47. Protruding plate; 51. Rear... 52. Support rod; 63. Connecting bolt; 64. Adjusting rod; 65. Pull-back sliding groove; 66. Adjusting threaded rod; 67. Adjusting knob; 68. Pull-back connecting block; 69. Vent hole two; 70. Second double-stroke memory spring; 71. Pull-back rope; 72. Limiting rod; 83. Auxiliary pull rod; 84. Auxiliary pull groove; 95. Snap-fit ​​fixing block; 96. Snap-fit ​​deformable piece; 97. Snap groove; 98. Snap block; 99. Vent hole three. Detailed Implementation

[0037] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] like Figures 1-13As shown, this utility model provides a technical solution:

[0039] A non-powered heat and smoke exhaust window includes a window sub-frame 1, installed within a window opening 10 of a building. The sub-frame 1 has an upper window sash 2 and a lower window sash 3, located above and below each floor. The upper window sash 2 is positioned near the top of each floor to facilitate early contact with high-temperature smoke during a fire. The upper window sash 2 is a bottom-hung window, requiring no manual opening. The lower window sash 3 is a standard casement window, operable manually. The bottom side of the upper window sash 2 is rotatably connected to the sub-frame 1. A heat-sensing push component 4 is installed on the sub-frame 1. This component contacts the upper window sash 2 and pushes it out during a fire, allowing it to flip downwards due to gravity. A rear support is installed on the side of the sub-frame 1 away from the upper window sash 2. The support component 5 and the rear support component 5 are detachably connected to the adjustment component 6. The adjustment component 6 is rotatably mounted on the window sub-frame 1. The adjustment component 6 is equipped with a temperature-sensing pull component 7, which is connected to the upper window sash 2. It is used to pull the upper window sash 2 back to its original position to close the upper window sash 2 after the fire ends. The side of the window sub-frame 1 and the upper window sash 2 that are close to each other is connected by an auxiliary support component 8. The auxiliary support component 8 is used to provide auxiliary support for the flipped-out upper window sash 2. A snap-fit ​​component 9 is also provided between the window sub-frame 1 and the upper window sash 2 to snap them together, which improves the safety of closing the upper window sash 2. The snap-fit ​​component 9 can automatically disconnect during a fire and return to the snap-fit ​​state after the fire ends.

[0040] In an optional embodiment, the temperature-sensing push assembly 4 includes a push mounting block 41, which is disposed on the upper side of the window sub-frame 1 that contacts the upper window sash 2, so as to contact the high-temperature smoke as early as possible without affecting the fit between the upper window sash 2 and the window sub-frame 1. The push mounting block 41 is L-shaped, and an outward sliding groove 42 is formed at one end of the push mounting block 41 near the upper window sash 2. An outward guide rod 43 is disposed in the outward sliding groove 42. The axis of the outward guide rod 43 is perpendicular to the plane where the window sub-frame 1 is located. A first double-stroke memory spring 44 is sleeved on the outward guide rod 43. The first double-stroke memory spring 44 includes a low-temperature mode and a high-temperature mode. The length of the low-temperature mode of the first double-stroke memory spring 44 is shorter than the length of its high-temperature mode, and both are longer than the length of the push-out guide rod 43. One end of the first double-stroke memory spring 44 is located in the push-out sliding groove 42 away from the upper window sash 2. The other end of the first double-stroke memory spring 44 is provided with a push-out piece 45. The push-out piece 45 is slidably located in the push-out sliding groove 42 and can contact the upper window sash 2, and is used to apply a pushing force to the upper window sash 2 when the first double-stroke memory spring 44 is in the high-temperature mode.

[0041] In an optional embodiment, a plurality of vent holes 46 are formed through the side wall of the outward sliding groove 42. The vent holes 46 are used to facilitate the entry of high-temperature smoke into the outward sliding groove 42, so that the first double-stroke memory spring 44 can fully contact the high-temperature smoke, avoiding insufficient local temperature from affecting the deformation effect. Moreover, the vent holes 46 do not affect the sliding of the outward pushing piece 45 in the outward sliding groove 42. Preferably, the outward pushing piece 45 is set as a circular piece to prevent the first double-stroke memory spring 44 from pushing the outward pushing piece 45 back to its original position when it is in a low-temperature state. If block 41 causes motion interference, affecting the closing of the upper window sash 2, a protruding plate 47 is provided on the upper window sash 2 at the position corresponding to the outer push plate 45. The protruding plate 47 is used to increase the contact area between the upper window sash 2 and the outer push plate 45, so as to facilitate the quick opening of the upper window sash 2. More preferably, a torsion spring is provided at the rotational connection between the upper window sash 2 and the window sub-frame 1, so as to provide a continuous torque for the opening of the upper window sash 2, assisting the temperature sensing push component 4, which can open the upper window sash 2 more quickly, and the torque of the torsion spring is moderate, so that the upper window sash 2 will not be opened when there is no fire.

[0042] In an optional embodiment, the adjustment assembly 6 includes an adjustment rod 61. One end of the adjustment rod 61 is rotatably mounted on the window sub-frame 1 on one side of the push mounting block 41. A pull-back sliding groove 62 is formed on the adjustment rod 61 along its length. An adjustment threaded rod 63 is rotatably mounted in the pull-back sliding groove 62. The axis of the adjustment threaded rod 63 is parallel to the length direction of the pull-back sliding groove 62. The end of the adjustment threaded rod 63 away from the window sub-frame 1 passes through the side wall of the pull-back sliding groove 62 and is coaxially mounted with an adjustment knob 64. Rotating the adjustment knob 64 can drive the adjustment threaded rod 63 to rotate, causing it to slide within the pull-back sliding groove 62. A pullback connecting block 65 is provided, and the pullback connecting block 65 is threadedly connected to the adjusting threaded rod 63. The adjusting threaded rod 63 can adjust the position of the pullback connecting block 65 in the pullback sliding groove 62 by rotation. Several ventilation holes 66 are opened through the side wall of the pullback sliding groove 62. The ventilation holes 66 are used to facilitate the entry of high-temperature smoke into the pullback sliding groove 62, so that the second double-stroke memory spring 71 can fully contact the high-temperature smoke, avoid the local insufficient temperature from affecting the deformation effect of the second double-stroke memory spring 71, and the ventilation holes 66 do not affect the sliding of the pullback connecting block 65 in the pullback sliding groove 62.

[0043] In an optional embodiment, such as Figure 3As shown, the maximum opening angle α between the upper window sash 2 and the window sub-frame 1 is set to 45°. When α is too much less than 45°, the opening of the upper window sash 2 is small, making it difficult for indoor smoke to escape and resulting in low exhaust efficiency. When α is too much greater than 45°, the opening of the upper window sash 2 is too large. When there is a strong wind from the opposite direction outside the building, it is easily affected by the chimney effect, which prevents smoke from escaping while allowing air to enter the building, potentially causing the fire to spread and increasing the danger. Therefore, α should not be greater than 45°, and is preferably set to 45° to maximize smoke exhaust and avoid the chimney effect.

[0044] In an optional embodiment, the temperature-sensing pull assembly 7 includes a second double-stroke memory spring 71. The second double-stroke memory spring 71 is located inside the pull-back sliding groove 62 and sleeved on the outside of the adjusting threaded rod 63. One end of the second double-stroke memory spring 71 is set on the pull-back connecting block 65, and the other end of the second double-stroke memory spring 71 is connected to one end of the pull-back rope 72. The other end of the pull-back rope 72 is connected to the upper side of the upper window sash 2. The pull-back rope 72 is made of metal rope. The second double-stroke memory spring 71 includes a low-temperature mode and a high-temperature mode. The length of the low-temperature mode of the second double-stroke memory spring 71 is less than the length of its high-temperature mode, and the difference in length satisfies the requirement that the upper window sash 2 and the window sub-frame 1 can form a 45° angle. When a 45° angle cannot be formed, the angle between the upper window sash 2 and the window sub-frame 1 can be adjusted by adjusting the position of the pull-back connecting block 65.

[0045] In an optional embodiment, two limiting rods 73 are also included. The two limiting rods 73 are located at the end of the adjusting rod 61 near the upper window sash 2, and the axes of the limiting rods 73 are perpendicular to the axis of the adjusting threaded rod 63. A gap is left between the two limiting rods 73. The pull-back rope 72 passes through the gap and is connected to the upper window sash 2. The limiting rods 73 are used to support the pull-back rope 72, reduce the sliding friction of the pull-back rope 72, and prevent the pull-back rope 72 from getting tangled.

[0046] In an optional embodiment, the rear support assembly 5 includes a rear support rod 51, one end of which is rotatably connected to the window sub-frame 1, and the other end of which is connected to an adjusting rod 61 via a connecting bolt 52. After connection, the length direction of the adjusting rod 61 is perpendicular to the plane where the window sub-frame 1 is located, that is, the rear support rod 51, the adjusting rod 61, and one side of the window sub-frame 1 form a right-angled triangle. After the connecting bolt 52 disconnects the connection between the adjusting rod 61 and the rear support rod 51, due to gravity, both the rear support rod 51 and the adjusting rod 61 can hang down and fit against the window sub-frame 1, which is convenient for removal during installation and has better practicality.

[0047] In an optional embodiment, after the upper window sash 2 is closed, a cavity is left between the upper window sash 2 and the window sub-frame 1. An auxiliary support assembly 8 is disposed within this cavity, including an auxiliary pull rod 81. One end of the auxiliary pull rod 81 is rotatably mounted on the window sub-frame 1, and the other end is slidably mounted within an auxiliary pull groove 82. The auxiliary pull groove 82 is mounted on the upper window sash 2, and a stop is provided at the top of the auxiliary pull groove 82 to prevent the auxiliary pull rod 81 from dislodging from it. After the upper window sash 2 is opened, the auxiliary pull rod 81, the auxiliary pull groove 82, and one side of the window sub-frame 1 form a triangle, and the length of the auxiliary pull rod 81 satisfies the requirement that the angle β between the auxiliary pull rod 81 and the auxiliary pull groove 82 is always greater than 90°. Figure 3 As shown, this is to prevent the upper window sash 2 from failing to close due to the support of the auxiliary pull rod 81.

[0048] In an optional embodiment, two sets of temperature-sensing push assembly 4, rear support assembly 5, adjustment assembly 6, temperature-sensing pull assembly 7, and auxiliary support assembly 8 are symmetrically arranged on both sides of the window sub-frame 1 to improve the stability of the upper window sash 2 when opening and closing.

[0049] In an optional embodiment, the snap-fit ​​assembly 9 includes a snap-fit ​​fixing block 91 and a snap-fit ​​deformable piece 92. The snap-fit ​​fixing block 91 is disposed on the window sub-frame 1, and a slot 93 is formed on the snap-fit ​​fixing block 91. The snap-fit ​​deformable piece 92 is disposed on the upper window sash 2, and when the upper window sash 2 is closed, the snap-fit ​​deformable piece 92 can be inserted into the slot 93 of the snap-fit ​​fixing block 91. The snap-fit ​​deformable piece 92 is made of a two-way memory alloy material, including a low-temperature mode and a high-temperature mode. In the low-temperature mode, the snap-fit ​​deformable piece 92 has snap-fit ​​blocks 94 on both sides, and the snap-fit ​​blocks 94 can... The snap-fit ​​deformation piece 92 is snapped into place with the snap-fit ​​fixing block 91 in the snap-fit ​​groove 93. When in a high-temperature state, the snap-fit ​​deformation piece 92 is deformed into a state where there are no snap-fit ​​blocks 94 on both sides. At this time, there is no snap-fit ​​between the snap-fit ​​deformation piece 92 and the snap-fit ​​fixing block 91, which facilitates the detachment of the snap-fit ​​deformation piece 92 without the need to apply external force to detach it from the snap-fit ​​state. A ventilation hole 3 95 is opened through the groove wall of the snap-fit ​​groove 93. The ventilation hole 3 95 is used to facilitate the entry of high-temperature smoke into the snap-fit ​​groove 93 so that the snap-fit ​​deformation piece 92 can fully contact the high-temperature smoke and avoid insufficient local temperature affecting the deformation effect.

[0050] In an optional embodiment, sealing strips are provided on the edges of both the lower window sash 3 and the upper window sash 2 to ensure a sealing contact with the window sub-frame 1 when the window is closed, thus preventing air leakage; double-layer vacuum glass is provided on the outer sides of both the lower window sash 3 and the upper window sash 2 to enhance the thermal insulation performance of the window.

[0051] In an optional embodiment, the first double-pass memory spring 44, the second double-pass memory spring 71, and the snap-fit ​​deformable piece 92 are all made of nickel-titanium double-pass memory alloy. Through training, they can exhibit two different forms at high and low temperatures. The phase transition temperature of the low-temperature form of the first double-pass memory spring 44, the second double-pass memory spring 71, and the snap-fit ​​deformable piece 92 is set to be less than 50°C, preferably 50°C, that is, when the temperature is below 50°C, it deforms into a low-temperature form. The phase transition temperature of the high-temperature form of the first double-pass memory spring 44, the second double-pass memory spring 71, and the snap-fit ​​deformable piece 92 is set to be greater than 100°C, preferably 100°C, that is, when the temperature is above 100°C, it deforms into a high-temperature form. Since the temperature of smoke during a fire can reach several hundred degrees Celsius, the smoke can be discharged earlier.

[0052] Working principle: First, the window sub-frame 1 is installed in the window opening 10 of the building. Then, an upper window sash 2 and a lower window sash 3 are installed above and below the window sub-frame 1, respectively. The lower window sash 3 is a regular casement window used for daily ventilation and can be opened manually. The upper side of the upper window sash 2 is close to the top of each floor. Because the smoke temperature is high during a fire, the smoke will first fill the upper space of each floor and thicken from top to bottom. Therefore, the upper window sash 2, being close to the top of each floor, can come into contact with the smoke as early as possible to expel the smoke in time and prevent the smoke from accumulating in the lower floors. Then, the rear support rod 51 and the adjusting rod 61 are rotated, and the rear support rod 51 and the adjusting rod 61 are connected by the connecting bolt 52. Rod 61 is positioned such that its length is perpendicular to the plane of the window sub-frame 1. In a low-temperature state, without contact with high-temperature smoke, both the first double-stroke memory spring 44 and the second double-stroke memory spring 71 are in a relatively short length state, and the snap-fit ​​deformation piece 92 is also snapped into the slot 93 of the snap-fit ​​fixing block 91. Preferably, the position of the pull-back connecting block 65 can be adjusted by rotating the adjustment knob 64, so that the second double-stroke memory spring 71 also exerts a certain pulling force on the upper window sash 2 when it is closed, preventing the upper window sash 2 from coming off. Preferably, the first double-stroke memory spring 44 is in a slightly compressed state when the upper window sash 2 is closed. This causes the first double-stroke memory spring 44 to apply a slight pushing force to the upper window sash 2, and at this time, the pushing force of the first double-stroke memory spring 44 is less than the pulling force of the second double-stroke memory spring 71; when a fire occurs, the high-temperature smoke of the fire fills the top of the building and comes into contact with the upper window sash 2 and its connected components; the second double-stroke memory spring 71 comes into contact with the high-temperature smoke, causing the second double-stroke memory spring 71 to extend to a high-temperature state, at which point the pulling force on the upper window sash 2 disappears, and the snap-fit ​​deformation piece 92 deforms into a state without the snap-fit ​​block 94 after contacting the high-temperature smoke, so that the connection between the snap-fit ​​deformation piece 92 and the snap-fit ​​fixing block 91 is broken, and the upper window sash 2 can be flipped downwards, and the first double-stroke memory spring 71 extends to a high-temperature state. When the memory spring 44 comes into contact with the high-temperature smoke, it extends to a high-temperature state. While extending, it continuously applies a pushing force to the upper window sash 2 to push the top of the upper window sash 2 away from the window sub-frame 1. The length of the first double-stroke memory spring 44 in its high-temperature state is sufficient for the upper window sash 2 to naturally flip downward under the action of gravity. When the upper window sash 2 flips downward, since there is no tension on the pull rope 72, in order to avoid the upper window sash 2 generating kinetic energy impact on the pull rope 72, the upper window sash 2 is slowly flipped downward through the sliding support of the auxiliary pull rod 81, and the angle between the final flip position of the upper window sash 2 and the window sub-frame 1 is 45° to avoid the reverse interference of the chimney effect.After heat and smoke exhaust is completed, due to the temperature drop, both the first double-stroke memory spring 44 and the snap-fit ​​deformation piece 92 return to their low-temperature state. Since the second double-stroke memory spring 71 is located indoors, its return to the low-temperature state will be slightly later. When the second double-stroke memory spring 71 shortens, it pulls the upper side of the upper window sash 2 towards the upper end of the window sub-frame 1, completing the closure. The snap-fit ​​deformation piece 92 and the snap-fit ​​fixing block 91 snap together again, ready for the next smoke exhaust use.

[0053] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more unless otherwise explicitly specified.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0057] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A passive heat exhaust and smoke exhaust window, comprising a window sub-frame (1) arranged in a window hole (10) of a building, characterized in that: an upper window sash (2) and a lower window sash (3) are arranged on the window sub-frame (1) respectively, the upper window sash (2) is arranged as a lower-hung window, the bottom side of the upper window sash (2) is rotationally connected to the window sub-frame (1), a temperature-sensing pushing assembly (4) is arranged on the window sub-frame (1), used for contacting the upper window sash (2) and pushing the upper window sash (2) out in case of fire, a rear support assembly (5) is arranged on the upper end of the window sub-frame (1) away from the upper window sash (2), the rear support assembly (5) is detachably connected to an adjusting assembly (6), the adjusting assembly (6) is arranged on the window sub-frame (1), a temperature-sensing pulling assembly (7) is arranged in the adjusting assembly (6), the temperature-sensing pulling assembly (7) is connected to the upper window sash (2), used for pulling the upper window sash (2) back to the original closed position after the fire is over, the side of the window sub-frame (1) and the upper window sash (2) close to each other is connected through an auxiliary support assembly (8), the window sub-frame (1) and the upper window sash (2) are also clamped to each other through a clamping assembly (9), and the clamping assembly (9) can automatically disconnect the clamping in case of fire.

2. A non-powered smoke and heat vent window according to claim 1, wherein: The temperature-sensing pushing assembly (4) comprises a pushing mounting block (41) arranged on the upper side of the window sub-frame (1) in contact with the upper window sash (2) without affecting the fit of the upper window sash (2) and the window sub-frame (1), the pushing mounting block (41) is arranged in an L shape, an outer pushing sliding groove (42) is formed at one end of the pushing mounting block (41) close to the upper window sash (2), an outer pushing guide rod (43) is arranged in the outer pushing sliding groove (42), a first double-path memory spring (44) is sleeved on the outer pushing guide rod (43), the first double-path memory spring (44) comprises a low-temperature form and a high-temperature form, the length of the low-temperature form of the first double-path memory spring (44) is shorter than the length of the high-temperature form, one end of the first double-path memory spring (44) is arranged in the outer pushing sliding groove (42) away from the upper window sash (2), and the other end of the first double-path memory spring (44) is provided with an outer pushing piece (45) which is slidingly arranged in the outer pushing sliding groove (42) and can contact the upper window sash (2), used for exerting a pushing force on the upper window sash (2) when the first double-path memory spring (44) is in the high-temperature form; a plurality of air holes (46) are formed through the side wall of the outer pushing sliding groove (42), and the air holes (46) do not affect the sliding of the outer pushing piece (45) in the outer pushing sliding groove (42); the outer pushing piece (45) is arranged in a circular shape to avoid the movement interference between the outer pushing piece (45) and the pushing mounting block (41) when the first double-path memory spring (44) drives the outer pushing piece (45) to return to the original position in the low-temperature form, and a protruding plate (47) is arranged on the upper window sash (2) corresponding to the position of the outer pushing piece (45), used for increasing the contact area with the outer pushing piece (45) to facilitate the pushing out of the upper window sash (2).

3. A non-powered smoke and heat vent window according to claim 2, wherein: The adjusting assembly (6) comprises an adjusting rod (61), one end of the adjusting rod (61) is rotatably arranged on the window sub-frame (1) on one side of the pushing mounting block (41), a pull-back sliding groove (62) is formed on the adjusting rod (61) along the length direction of the adjusting rod (61), a adjusting screw rod (63) is rotatably arranged in the pull-back sliding groove (62), the axis of the adjusting screw rod (63) is parallel to the length direction of the pull-back sliding groove (62), the end of the adjusting screw rod (63) away from the window sub-frame (1) penetrates through the pull-back sliding groove (62) and coaxially arranges an adjusting knob (64), the adjusting knob (64) can drive the adjusting screw rod (63) to rotate by rotating, a pull-back connecting block (65) is slidably arranged in the pull-back sliding groove (62), and the pull-back connecting block (65) is threadedly connected with the adjusting screw rod (63), the adjusting screw rod (63) can adjust the position of the pull-back connecting block (65) in the pull-back sliding groove (62) by rotating; A plurality of air holes (66) are formed through the side wall of the pull-back sliding groove (62), and the air holes (66) do not affect the sliding of the pull-back connecting block (65) in the pull-back sliding groove (62).

4. A non-powered smoke and heat vent window according to claim 3, wherein: The maximum opening and closing included angle between the upper sash (2) and the window sub-frame (1) is 45°.

5. A non-powered smoke and heat vent window according to claim 4, wherein: The temperature-sensitive pulling assembly (7) comprises a second double-path memory spring (71), the second double-path memory spring (71) is arranged outside the adjusting screw rod (63), one end of the second double-path memory spring (71) is arranged on the pull-back connecting block (65), the other end of the second double-path memory spring (71) is connected with one end of a pull-back rope (72), the other end of the pull-back rope (72) is connected with the upper sash (2); Further comprising two limiting rods (73), the two limiting rods (73) are arranged on the adjusting rod (61), the axes of the two limiting rods (73) are perpendicular to the axis of the adjusting screw rod (63), a gap is left between the two limiting rods (73), the pull-back rope (72) penetrates through the gap, and the limiting rods (73) are used for supporting the pull-back rope (72) and avoiding the pull-back rope (72) from being wound; The second double-path memory spring (71) comprises a low-temperature form and a high-temperature form, the length of the low-temperature form of the second double-path memory spring (71) is smaller than the length of the high-temperature form of the second double-path memory spring (71), and the difference between the lengths satisfies that the upper sash (2) and the window sub-frame (1) can form an included angle of 45°.

6. A non-powered smoke and heat vent window according to claim 5, wherein: The rear supporting assembly (5) comprises a rear supporting rod (51), one end of the rear supporting rod (51) is rotatably connected to the window sub-frame (1), the other end of the rear supporting rod (51) is connected to the adjusting rod (61) through a connecting bolt (52), and the length direction of the adjusting rod (61) is perpendicular to the plane where the window sub-frame (1) is located, that is, the rear supporting rod (51), the adjusting rod (61) and one side of the window sub-frame (1) form a right-angled triangle.

7. A non-powered smoke and heat vent according to claim 6, wherein: The upper sash (2) leaves a cavity between the window sub-frame (1) after closing relative to the window sub-frame (1), and the auxiliary support assembly (8) is arranged in the cavity, including an auxiliary pull rod (81), one end of the auxiliary pull rod (81) is rotatably arranged on the window sub-frame (1), the other end of the auxiliary pull rod (81) is slidably arranged in an auxiliary pull slot (82), and the auxiliary pull slot (82) is arranged on the upper sash (2). After the upper sash (2) is opened, the auxiliary pull rod (81), the auxiliary pull slot (82) and one side of the window sub-frame (1) form a triangle, and the length of the auxiliary pull rod (81) satisfies that the angle between the auxiliary pull rod (81) and the auxiliary pull slot (82) is always greater than 90°.

8. A non-powered smoke and heat vent according to claim 7, wherein: The clamping assembly (9) includes a clamping fixed block (91) and a clamping deformation piece (92), the clamping fixed block (91) is arranged on the window sub-frame (1), a clamping slot (93) is formed in the clamping fixed block (91), the clamping deformation piece (92) is arranged on the upper sash (2), and the clamping deformation piece (92) can be inserted into the clamping slot (93) of the clamping fixed block (91) when the upper sash (2) is closed. The clamping deformation piece (92) is made of double-path memory alloy material, including a low-temperature form and a high-temperature form, the clamping deformation piece (92) is provided with clamping blocks (94) on both sides in the low-temperature form, the clamping blocks (94) can be clamped with the clamping slot (93) of the clamping fixed block (91), and the clamping deformation piece (92) is deformed to be in a state without clamping blocks (94) in the high-temperature form, so that the clamping deformation piece (92) is not clamped with the clamping fixed block (91) at this time. An air hole three (95) is formed through the slot wall of the clamping slot (93).

9. A non-powered smoke and heat vent window according to claim 1, wherein: The lower sash (3) is arranged as a casement window, and the edges of the lower sash (3) and the upper sash (2) are provided with sealing strips for sealing contact with the window sub-frame (1) when the window is closed; and the outer sides of the lower sash (3) and the upper sash (2) are provided with double-layer vacuum glass.

10. A non-powered smoke and heat vent window according to claim 8, wherein: The phase transition temperatures of the first double-path memory spring (44), the second double-path memory spring (71) and the low-temperature form of the clamping deformation piece (92) are all set to be less than 50℃; and the phase transition temperatures of the high-temperature forms of the first double-path memory spring (44), the second double-path memory spring (71) and the clamping deformation piece (92) are all set to be greater than 100℃.

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