Fireproof window capable of being automatically closed

Abstract

The invention relates to the technical field of doors and windows, in particular to an automatically-closed fireproof window which comprises an isolation frame, two isolation windows are arranged in the isolation frame, a center sleeve is fixedly mounted on the surface of the isolation frame, transmission shafts are fixedly connected to the upper ends of the two isolation windows, and a driving ring is coaxially arranged in the center sleeve. According to the fireproof window, through linkage of the smoke detection device and the electromagnetic lock rod, electric control automatic triggering of the fireproof window in the initial stage of a fire disaster is achieved, meanwhile, through the arrangement of the glass base filled with heat expansion liquid, the safety of the fireproof window is improved, and the safety of the fireproof window is improved. When power is cut off or the electromagnetic lock rod fails, the device can be automatically broken under the action of high temperature and release limitation on the auxiliary rod, so that the ejection device is triggered to be started, the situation that the fireproof window cannot be closed due to failure of a single triggering mode is avoided, and the safety and reliability of the whole system are improved.

Description

Technical Field

[0001] This invention relates to the field of door and window technology, specifically to an automatically closing fireproof window. Background Technology

[0002] Fire-resistant windows, as an important component of building fire-resistant partition systems, are widely used in industrial plants, public buildings, and high-rise buildings. Their main function is to prevent flames and high-temperature smoke from spreading through windows during a fire, thereby slowing the spread of the fire and buying time for personnel evacuation and fire rescue. Existing fire-resistant windows typically include fixed fire-resistant windows and operable fire-resistant windows. Operable fire-resistant windows, while meeting daily ventilation and lighting needs, must also be closed promptly in the event of a fire to achieve fire isolation.

[0003] In the prior art, some fireproof windows achieve automatic closing in the event of a fire by linking with fire alarm systems, electronic control actuators, or electromagnetic locking devices. However, such fireproof windows are usually highly dependent on external power supply and electronic control systems. Once a power outage, damage to electrical components, or abnormal control signals occur during a fire, the fireproof window may fail to close in time, thereby weakening the fire separation effect. In addition, some fireproof windows rely on only a single triggering method, and their operational reliability is still insufficient under complex or extreme conditions. Therefore, this application proposes an automatically closing fireproof window. Summary of the Invention

[0004] The purpose of this invention is to provide an automatically closing fireproof window to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatically closing fireproof window, comprising an isolation frame, wherein two sets of isolation windows are provided inside the isolation frame, a central sleeve is fixedly installed on the surface of the isolation frame, and a drive shaft is fixedly connected to the upper end of each of the two sets of isolation windows. The end of the drive shaft away from the corresponding isolation window passes through the central sleeve axially and is rotatably disposed inside the central sleeve. A drive ring is coaxially disposed inside the central sleeve and is sleeved on the outer surface of the drive shaft. A central tube is fixedly installed at the inner end of the central sleeve, and an ejection device is disposed inside the central tube.

[0006] As a further embodiment of the present invention, conductive sleeves are fixedly installed at both ends of the central sleeve. The conductive sleeves are respectively sleeved on the outer surface of the corresponding transmission shaft, and multiple air guide holes are spaced apart along the circumference on the shaft wall of the transmission shaft. The air guide holes are all located within the coverage area of ​​the conductive sleeves. The surface of the isolation window is provided with an installation groove, and an air jet pipe is embedded in the installation groove. The input end of the air jet pipe is connected to the interior of the transmission shaft.

[0007] As a further embodiment of the present invention, an output pipe is fixedly connected to the surface of the conductive sleeve, a passive cylinder is slidably installed at the inner end of the transmission shaft, a transmission ring is slidably installed at the inner end of the passive cylinder, a support frame is fixedly installed at the inner end of the central sleeve, a drive ring is sleeved on the outer surface of the support frame, a force-bearing block is fixedly installed at the inner end of the drive ring, and a protrusion is fixedly installed on the outer surface of the transmission shaft. The surfaces of the force-bearing block and the protrusion abut against each other. By setting a passive cylinder, a transmission ring, and abutting and cooperating structure between the transmission shaft and the drive ring, the drive ring and the transmission shaft can achieve reliable linkage in the fire-triggered state and can disengage from each other in the non-triggered state. This ensures that the isolation window can be actively driven to close quickly in the event of a fire, while avoiding interference from the drive structure to the daily opening and closing of the isolation window, thereby improving the applicability and operational reliability of the fireproof window under different working conditions.

[0008] As a further embodiment of the present invention, two movable rods are slidably installed axially inside the central sleeve, each with a notch on its surface. A deceleration block is fixedly installed at the end of the movable rod away from the central sleeve. By slidably installing the notched movable rods axially inside the central sleeve and setting the deceleration block at the end of the movable rods, the deceleration block can dampen or limit the relevant transmission components during transmission, thereby achieving deceleration and stable control of the isolation window during opening or closing, preventing the isolation window from rotating too fast, and improving the safety and structural reliability of the fireproof window.

[0009] As a further embodiment of the present invention, the deceleration block is fitted to the outer surface of the transmission shaft, and a retaining plate is fixedly installed at the inner end of the central sleeve. The retaining plate is engaged in the notch on the surface of the movable rod. By fitting the deceleration block to the outer surface of the transmission shaft and providing a retaining plate structure in the central sleeve that engages with the notch of the movable rod, the position of the movable rod is stably limited, so that the deceleration block can continuously and reliably apply damping to the transmission shaft during transmission, thereby preventing the isolation window from rotating too fast or rebounding, and improving the stability and safety of the fireproof window during operation.

[0010] As a further embodiment of the present invention, a guide plate is fixedly installed at the inner end of the central sleeve, and an auxiliary wheel is rotatably installed at the bottom end of the guide plate. The auxiliary wheel and the transmission ring are tensioned and sleeved together by a transmission belt. A lifting rod is provided between the clamping plate and the movable rod. The lifting rod is connected to the transmission belt by a traction belt. By setting the guide plate and the auxiliary wheel inside the central sleeve, and linking the auxiliary wheel and the transmission ring together by a tensioned transmission belt, and simultaneously setting the lifting rod between the clamping plate and the movable rod and connecting it to the transmission belt by a traction belt, reliable force transmission and controlled action are achieved, so that the isolation window can maintain stable operation in the normal open or closed state, and can promptly release the restriction of the movable rod by the clamping plate in the event of a fire.

[0011] As a further embodiment of the present invention, the ejection device includes a high-pressure storage tank, which is fixedly installed at the inner end of the central tube. An isolation tube passes through the inner end of the high-pressure storage tank, and a lifting rod passes through the axial direction inside the isolation tube. A movable plug is fixedly installed at the bottom end of the lifting rod, and the movable plug is sealed and fitted against the inner wall of the isolation tube. An unlocking rod passes through the bottom end of the high-pressure storage tank, and a shielding plug is fixedly installed at the upper end of the unlocking rod.

[0012] As a further embodiment of the present invention, a pressure relief hole is provided on the wall of the isolation tube, and the shielding plug corresponds to and blocks the pressure relief hole in the initial state. The unlocking rod is connected to the high-pressure storage tank by a trigger spring. A blocking shell is fixedly sleeved on the outer surface of the isolation tube, and the input end of the output tube is fixedly connected to the output port of the blocking shell. Multiple blocking plugs are inserted through the inner end of the blocking shell.

[0013] As a further embodiment of the present invention, a trigger cylinder is provided at the bottom end of the central tube. A glass seat is installed inside the trigger cylinder, and an auxiliary rod is axially inserted inside the trigger cylinder. The bottom end of the auxiliary rod abuts against the upper end of the glass seat, and the upper end of the auxiliary rod contacts the upper end of the unlocking rod. By setting a trigger cylinder at the bottom end of the central tube and installing a glass seat and an axially inserted auxiliary rod inside the trigger cylinder, the upper and lower ends of the auxiliary rod contact the glass seat and the unlocking rod respectively, forming a structure combining temperature triggering and mechanical transmission. When a fire occurs, the glass seat breaks due to heat or the auxiliary rod is subjected to a triggering force, reliably pushing the unlocking rod to activate the ejection device, realizing the automatic closing of the fireproof window and improving the operational reliability of the fireproof window under abnormal conditions.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves automatic electronic triggering of fireproof windows in the early stages of a fire by linking a smoke detection device with an electromagnetic locking rod. At the same time, by setting a glass seat filled with a heat-expanding liquid, it can automatically break under high temperature when there is a power failure or the electromagnetic locking rod fails, thereby releasing the restriction on the auxiliary rod and triggering the ejection device to start. This avoids the fireproof window from being unable to close due to the failure of a single triggering method, and improves the safety and reliability of the overall system. 2. After the ejection device is triggered, the high-pressure gas and carbon dioxide in the high-pressure storage tank are released into the isolation pipe in a controlled manner, which pushes the movable plug to produce axial displacement and converts the gas energy into the rotational kinetic energy of the transmission belt, thereby driving the drive ring and transmission shaft to move, so that the isolation window can be closed in a short time, shortening the response time of the fireproof window and effectively blocking the fire spread path. 3. The present invention sets a deceleration groove and deceleration block cooperation structure on the transmission shaft, so that the isolation window has segmented damping and hovering effect during daily opening or closing, improving the safety of use. In the event of a fire, the transmission belt, traction belt and lifting rod are linked to automatically release the limiting constraint of the locking plate on the moving rod, so that the deceleration structure fails, thereby avoiding obstruction in the closing process and realizing the rapid closing of the isolation window, taking into account both stability and emergency efficiency. 4. By adopting a spring energy storage, high-pressure gas release and thermal triggering structure, the fireproof window can still complete the triggering and closing action by its own structure even in the event of a power outage caused by a fire or when no one is on duty. It is suitable for industrial plants, public buildings and important fire compartments with high requirements for safety and reliability. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a fireproof window; Figure 2 A structural diagram showing the disassembly of a fireproof window; Figure 3 This is a structural diagram of the central sleeve and the isolation window; Figure 4 This is a schematic diagram of the internal structure of the isolation sleeve; Figure 5 This is a schematic diagram of the internal structure of the drive ring and transmission shaft; Figure 6 This is a structural diagram of the movable rod. Figure 7 This is a schematic diagram of the internal structure of the central tube; Figure 8 This is a schematic diagram of the internal structure of a high-pressure storage tank; Figure 9 This is a schematic diagram of the internal structure of the isolation tube; Figure 10 This is a schematic diagram of the internal structure of the trigger cylinder.

[0016] In the diagram: 1. Isolation frame; 2. Central sleeve; 3. Ventilation duct; 4. Isolation window; 101. Jet pipe; 102. Drive shaft; 103. Transmission sleeve; 104. Drive ring; 105. Support frame; 106. Transmission ring; 107. Passive cylinder; 108. Air guide hole; 109. Output pipe; 110. Screw; 111. Force-bearing block; 201. Speed ​​reducer; 202. Transmission belt; 203. Throttle lever; 204. Traction belt; 205. Movable lever; 206. Clamping plate; 207. Guide plate; 208. Auxiliary wheel; 301. Central tube; 302. Lifting rod; 303. Blocking faceplate; 304. High-pressure storage tank; 305. Trigger cylinder; 306. Auxiliary rod; 307. Movable plug; 308. Isolation tube; 309. Shielding plug; 310. Unlocking rod; 311. Trigger spring; 312. Auxiliary spring; 313. Isolation plug; 401. Electromagnetic lock rod; 402. Glass base. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figures 1-3 An automatically closing fireproof window includes an isolation frame 1. The isolation frame 1 has two sets of isolation windows 4 inside. A ventilation pipe 3 is provided at the bottom of the isolation frame 1. A smoke detection device is installed in the ventilation pipe 3. The smoke detection device is used to detect the smoke concentration in the environment around the isolation frame 1 in real time, and outputs a trigger signal when a smoke signal generated by a fire is detected. The smoke detection device is an existing mature device. The specific structure and working principle will not be described in detail here. A central sleeve 2 is fixedly installed on the surface of the isolation frame 1. A drive shaft 102 is fixedly connected to the upper end of each of the two sets of isolation windows 4. The end of the drive shaft 102 away from the corresponding isolation window 4 passes through the central sleeve 2 axially and is rotatably installed inside the central sleeve 2. A drive ring 104 is coaxially installed inside the central sleeve 2 and is sleeved on the outer surface of the drive shaft 102. A central tube 301 is fixedly installed at the inner end of the central sleeve 2. An ejection device is installed inside the central tube 301. The ejection device releases stored energy after receiving the trigger signal from the smoke detection device to achieve fireproof isolation in the event of a fire and prevent flames and high-temperature smoke from spreading through the isolation window 4.

[0019] like Figures 3-5 As shown, transmission sleeves 103 are fixedly installed at both ends of the center sleeve 2. The transmission sleeves 103 are respectively sleeved on the outer surface of the corresponding transmission shaft 102. Multiple air guide holes 108 are spaced apart along the circumference on the shaft wall of the transmission shaft 102. The air guide holes 108 are all within the coverage area of ​​the transmission sleeves 103. The surface of the isolation window 4 is provided with an installation groove. An air jet pipe 101 is embedded in the installation groove. The input end of the air jet pipe 101 is connected to the interior of the transmission shaft 102. An output pipe 109 is fixedly connected to the surface of the transmission sleeve 103. The output pipe 109 is used to input carbon dioxide gas into the transmission sleeve 103. The carbon dioxide gas enters the transmission shaft 102 through the transmission sleeve 103 and flows into the jet pipe 101 through the air guide hole 108. Finally, it is ejected from the jet pipe 101 along the edge of the isolation window 4, thereby forming a gas barrier layer at the isolation frame 1 during the closing process of the isolation window 4, so as to reduce the risk of flames and high-temperature smoke entering from the isolation frame 1 and improve the smoke and fire resistance of the fireproof window. A driven cylinder 107 is slidably mounted on the inner end of the drive shaft 102, and a drive ring 106 is slidably mounted on the inner end of the driven cylinder 107. Specifically, the drive ring 106 is confined within the driven cylinder 107 and is only allowed to slide a short distance within a preset stroke range. When the drive ring 106 slides to the edge of the confined space and continues to be subjected to force, the drive ring 106 can push the driven cylinder 107 to move synchronously, thereby realizing the staged transmission of transmission force. A support frame 105 is fixedly installed on the inner end of the central sleeve 2. A drive ring 104 is sleeved on the outer surface of the support frame 105. A force-bearing block 111 is fixedly installed on the inner end of the drive ring 104, and a protrusion is fixedly installed on the outer surface of the drive shaft 102. The surface of the force-bearing block 111 and the surface of the protrusion are set to abut against each other. When the isolation window 4 is driven to rotate manually or by external force under normal use, the drive shaft 102 rotates accordingly and drives the protrusion to rotate, so that the protrusion gradually moves away from the force-bearing block 111, thereby avoiding the drive ring 104 from obstructing the opening action of the isolation window 4. When the drive ring 104 rotates under fire-triggered conditions, the force-bearing block 111 drives the drive shaft 102 to rotate by pushing the protrusion, thereby driving the isolation window 4 to rotate quickly to the closed position, realizing the automatic closing of the fireproof window. Two screws 110 are fixedly installed on the surface of the support frame 105, and the transmission ring 106 is threaded onto the outer surface of the screws 110. Therefore, during the rotation of the transmission shaft 102, the transmission ring 106 generates axial displacement while rotating.

[0020] like Figure 4 , Figure 6As shown, two movable rods 205 are slidably installed axially inside the central sleeve 2, and notches are opened on their surfaces respectively. A deceleration block 201 is fixedly installed at the end of the movable rod 205 away from the central sleeve 2. The deceleration block 201 is fitted to the outer surface of the transmission shaft 102. Specifically, multiple deceleration grooves are opened circumferentially on the outer surface of the transmission shaft 102. The surface of the deceleration block 201 is provided with a block structure that matches the deceleration groove. When the deceleration block 201 is in contact with the transmission shaft 102, the block is first squeezed out of the current deceleration groove under the guidance of the deceleration groove during the rotation of the transmission shaft 102, and then quickly inserted into the next deceleration groove after the transmission shaft 102 continues to rotate. This makes the transmission shaft 102 form a segmented damping effect during the rotation, so as to realize the staged suspension of the isolation window 4 during the opening or closing process, and avoid the isolation window 4 from impact or loss of control due to excessive rotation. A clamping plate 206 is fixedly installed at the inner end of the central sleeve 2. The clamping plate 206 is made of elastic metal material and is clamped in the notch on the surface of the movable rod 205. When the movable rod 205 is displaced along the axial direction, the movable rod 205 applies a lateral compressive force to the clamping plate 206, causing the clamping plate 206 to undergo elastic deformation. After the external force is released, it returns to the initial clamping state under its own elastic force, thereby forming a stable limiting and reset constraint on the movable rod 205. A guide plate 207 is fixedly installed at the inner end of the central sleeve 2. An auxiliary wheel 208 is rotatably installed at the bottom end of the guide plate 207. The auxiliary wheel 208 and the transmission ring 106 are tensioned together by a transmission belt 202. A tensioner is fixedly installed inside the central sleeve 2. The tensioner is used to continuously apply tension to the transmission belt 202 to ensure stable transmission of the transmission belt 202 during operation. A lifting rod 203 is provided between the clamping plate 206 and the movable rod 205. The lifting rod 203 is connected to the transmission belt 202 by a traction belt 204. When the transmission belt 202 rotates rapidly in a fire-triggered state, the transmission belt 202 pulls the lifting rod 203 to move via the traction belt 204, causing the lifting rod 203 to lift the clamping plate 206 out of the notch in the movable rod 205, thereby releasing the limiting constraint of the clamping plate 206 on the movable rod 205. This allows the movable rod 205 and the deceleration block 201 to no longer exert damping restrictions on the transmission shaft 102, enabling the transmission shaft 102 to rotate at a higher speed, thereby accelerating the closing speed of the isolation window 4 in a fire state and improving the emergency response efficiency of the fireproof window.

[0021] Example 2: Please refer to Figures 7-9An automatically closing fireproof window, based on Embodiment 1, includes a catapult device comprising a high-pressure storage tank 304, which is fixedly installed at the inner end of a central tube 301. The high-pressure storage tank 304 is filled with liquid carbon dioxide and high-pressure inert gas. The high-pressure inert gas is used to synergistically promote the rapid release of liquid carbon dioxide in the triggered state, thereby improving the stability and response speed of the gas output. An isolation tube 308 is provided through the inner end of the high-pressure storage tank 304. A lifting rod 302 is axially inserted inside the isolation tube 308, and the upper end of the lifting rod 302 is fixedly connected to the surface of a transmission belt 202. When the lifting rod 302 moves upward along the axial direction, under the guidance of a guide plate 207, the lifting rod 302 can drive the transmission belt 202 to rotate, thereby converting gas energy into the rotational kinetic energy of the transmission belt 202. A movable plug 307 is fixedly installed at the bottom end of the lifting rod 302. The movable plug 307 is sealed and fitted to the inner wall of the isolation tube 308. An unlocking rod 310 is inserted through the bottom end of the high-pressure storage tank 304. A shielding plug 309 is fixedly installed at the upper end of the unlocking rod 310. A pressure relief hole is opened on the tube wall of the isolation tube 308. In the initial state, the shielding plug 309 corresponds to the pressure relief hole and blocks it. The unlocking rod 310 and the high-pressure storage tank 304 are connected by a trigger spring 311. When the unlocking rod 310 is displaced by overcoming the elastic force of the trigger spring 311 under the action of external triggering, the shielding plug 309 moves down and releases the blockage of the pressure relief hole, so that the high-pressure gas inside the high-pressure storage tank 304 enters the isolation tube 308 through the pressure relief hole and generates an upward pushing force on the movable plug 307. An isolation tube 308 is fixedly fitted with a blocking shell 303 on its outer surface. The input end of the output tube 109 is fixedly connected to the output port of the blocking shell 303. Multiple blocking plugs 313 are inserted through the inner end of the blocking shell 303. Each blocking plug 313 is elastically connected to the blocking shell 303 by an auxiliary spring 312. The end of the blocking plug 313 away from the blocking shell 303 has an inclined surface and is partially exposed inside the isolation tube 308. When the movable plug 307 moves upward under the action of high-pressure gas, its surface first contacts the inclined surface of the blocking plug 313. During the contact process, the blocking plug 313 is pushed to move radially, so that the movable plug 307 enters the interior of the blocking shell 303. This releases the blocking of the gas flow path by the blocking plug 313, allowing the mixed gas inside the isolation tube 308 to smoothly enter the output tube 109, thus achieving directional gas output. Specifically, a limiting ring is fixedly installed at the inner end of the isolation tube 308. The limiting ring is located above the isolation plug 313. When the movable plug 307 moves upward to the preset end point of the stroke, the movable plug 307 stops moving upward due to the obstruction of the limiting ring. Its lower position continues to maintain contact with the isolation plug 313 to keep the isolation plug 313 in the open state, thereby ensuring that the gas can be output stably and continuously through the output tube 109.

[0022] like Figure 7 , Figure 8 , Figure 10 As shown, a trigger cylinder 305 is inserted through the bottom end of the central tube 301. A glass seat 402 is installed inside the trigger cylinder 305. An auxiliary rod 306 is inserted through the trigger cylinder 305 along the axial direction. The bottom end of the auxiliary rod 306 abuts against the upper end of the glass seat 402, and the upper end of the auxiliary rod 306 contacts the upper end of the unlocking rod 310. The glass seat 402 is filled with a liquid that can expand in volume when heated. When the ambient temperature rises to a preset threshold, the liquid expands due to heat and exerts an outward expansion pressure on the glass seat 402, causing the glass seat 402 to break. This releases the structural support and restriction of the glass seat 402 on the auxiliary rod 306, allowing the auxiliary rod 306 to move axially. The surface of the trigger cylinder 305 is provided with a groove, and multiple electromagnetic locking rods 401 are fixedly installed at the inner end of the central tube 301. The telescopic ends of the electromagnetic locking rods 401 pass through the grooves on the surface of the trigger cylinder 305 and form a snap-fit ​​engagement with the trigger cylinder 305 to lock the position of the trigger cylinder 305 and its internal components.

[0023] The working principle of this invention is: When a fire occurs, the smoke detection device detects the smoke signal and sends a control command to the electromagnetic locking rod 401, causing the telescopic end of the electromagnetic locking rod 401 to retract, thereby releasing its locking restriction on the groove of the trigger cylinder 305. At this time, the trigger spring 311 is in a pre-compressed state. Under the elastic force of the trigger spring 311, the unlocking rod 310 and the auxiliary rod 306 are pushed synchronously and moved downward along the axis to complete the triggering action of the ejection device.

[0024] When the electromagnetic locking rod 401 fails to operate normally due to power failure or malfunction, the liquid inside the glass seat 402 expands under high temperature and breaks the glass seat 402, which can also release the restriction on the auxiliary rod 306, causing the auxiliary rod 306 to move under the elastic force of the trigger spring 311, thereby realizing the thermal triggering of the ejection device and ensuring that the fireproof window can still operate reliably under abnormal conditions. At this time, the unlocking rod 310 moves downward and drives the shielding plug 309 to move. Then, the high-pressure gas and carbon dioxide inside the high-pressure storage tank 304 enter the isolation pipe 308 and push the movable plug 307 upward under the action of pressure. At this time, the transmission belt 202 rotates and drives the lifting rod 203 to release the jamming between the locking plate 206 and the movable rod 205 through the traction belt 204, thereby releasing the limiting constraint of the locking plate 206 on the movable rod 205, so that the movable rod 205 and the deceleration block 201 no longer exert damping restriction on the transmission shaft 102. Meanwhile, when the movable plug 307 moves upward under the action of high-pressure gas, its surface first contacts the inclined surface of the isolation plug 313, and pushes the isolation plug 313 to move radially during the contact process, so that the movable plug 307 enters the interior of the blocking shell 303, thereby releasing the blockage of the gas flow path by the isolation plug 313, allowing the mixed gas inside the isolation tube 308 to smoothly enter the output tube 109. Subsequently, carbon dioxide gas enters the drive shaft 102 through the conduction sleeve 103, and flows into the jet pipe 101 through the air guide hole 108, and finally is ejected from the jet pipe 101 along the edge direction of the isolation window 4, thereby forming a gas barrier layer at the isolation frame 1 during the closing process of the isolation window 4, reducing the risk of flames and high-temperature smoke entering from the isolation frame 1, and improving the smoke and fire resistance performance of the fireproof window; During the process of the drive belt 202 driving the drive ring 104 to rotate, the force block 111 drives the drive shaft 102 to rotate by pushing the protrusion, thereby driving the isolation window 4 to rotate quickly to the closed position, realizing the automatic closing of the fireproof window, and finally achieving effective isolation of fire.

[0025] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatically closing fireproof window, comprising an isolation frame (1), characterized in that: The isolation frame (1) is provided with two sets of isolation windows (4) inside. A central sleeve (2) is fixedly installed on the surface of the isolation frame (1). A drive shaft (102) is fixedly connected to the upper end of each of the two sets of isolation windows (4). The end of the drive shaft (102) away from the corresponding isolation window (4) passes through the central sleeve (2) axially and is rotatably installed inside the central sleeve (2). A drive ring (104) is coaxially provided inside the central sleeve (2). The drive ring (104) is sleeved on the outer surface of the drive shaft (102). A central tube (301) is fixedly installed at the inner end of the central sleeve (2). A catapult device is provided inside the central tube (301).

2. The fireproof window that automatically closes according to claim 1, characterized in that: The center sleeve (2) is fixedly installed with a transmission sleeve (103) at both ends. The transmission sleeve (103) is respectively sleeved on the outer surface of the corresponding transmission shaft (102). The shaft wall of the transmission shaft (102) is provided with a plurality of air guide holes (108) spaced apart along its circumference. The air guide holes (108) are all located within the coverage area of ​​the transmission sleeve (103). The surface of the isolation window (4) is provided with an installation groove. The installation groove is embedded with a jet pipe (101). The input end of the jet pipe (101) is connected to the interior of the transmission shaft (102).

3. The fireproof window that automatically closes according to claim 2, characterized in that: An output tube (109) is fixedly connected to the surface of the transmission sleeve (103). A passive cylinder (107) is slidably installed at the inner end of the transmission shaft (102). A transmission ring (106) is slidably installed at the inner end of the passive cylinder (107). A support frame (105) is fixedly installed at the inner end of the center sleeve (2). A drive ring (104) is sleeved on the outer surface of the support frame (105). A force-bearing block (111) is fixedly installed at the inner end of the drive ring (104). A protrusion is fixedly installed on the outer surface of the transmission shaft (102). The surface of the force-bearing block (111) and the surface of the protrusion are mutually abutted.

4. The fireproof window that automatically closes according to claim 3, characterized in that: Two movable rods (205) are slidably installed axially inside the central sleeve (2), and notches are opened on their surfaces respectively. A deceleration block (201) is fixedly installed at the end of the movable rod (205) away from the central sleeve (2).

5. The fireproof window that automatically closes according to claim 4, characterized in that: The deceleration block (201) is fitted to the outer surface of the transmission shaft (102), and a clamping plate (206) is fixedly installed on the inner end of the center sleeve (2), and the clamping plate (206) is engaged in the notch on the surface of the movable rod (205).

6. The fireproof window that automatically closes according to claim 5, characterized in that: A guide plate (207) is fixedly installed at the inner end of the center sleeve (2). An auxiliary wheel (208) is rotatably installed at the bottom end of the guide plate (207). The auxiliary wheel (208) and the transmission ring (106) are tensioned and sleeved together by a transmission belt (202). A lifting rod (203) is provided between the clamping plate (206) and the movable rod (205). The lifting rod (203) and the transmission belt (202) are connected by a traction belt (204).

7. The fireproof window that automatically closes according to claim 1, characterized in that: The ejection device includes a high-pressure storage tank (304), which is fixedly installed at the inner end of the central tube (301). An isolation tube (308) is inserted through the inner end of the high-pressure storage tank (304). A lifting rod (302) is inserted axially inside the isolation tube (308). A movable plug (307) is fixedly installed at the bottom end of the lifting rod (302). The movable plug (307) is sealed and fitted to the inner wall of the isolation tube (308). An unlocking rod (310) is inserted through the bottom end of the high-pressure storage tank (304). A shielding plug (309) is fixedly installed at the upper end of the unlocking rod (310).

8. The fireproof window that automatically closes according to claim 7, characterized in that: The isolation tube (308) has a pressure relief hole on its wall, and the shielding plug (309) corresponds to and blocks the pressure relief hole in the initial state. The unlocking rod (310) is connected to the high-pressure storage tank (304) by a trigger spring (311). The outer surface of the isolation tube (308) is fixedly fitted with a blocking shell (303). The input end of the output tube (109) is fixedly connected to the output port of the blocking shell (303). Multiple blocking plugs (313) are inserted through the inner end of the blocking shell (303).

9. The fireproof window that automatically closes according to claim 8, characterized in that: A trigger cylinder (305) is inserted through the bottom end of the central tube (301). A glass seat (402) is installed inside the trigger cylinder (305). An auxiliary rod (306) is inserted through the trigger cylinder (305) along the axial direction. The bottom end of the auxiliary rod (306) abuts against the upper end of the glass seat (402), and the upper end of the auxiliary rod (306) contacts the upper end of the unlocking rod (310).

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