Escape platform fireproof curtain and escape platform

Abstract

The invention provides an escape platform fireproof curtain and an escape platform, and relates to the technical field of fireproof roller shutters, the escape platform fireproof curtain comprises a frame body, a rolling mechanism, a fireproof roller shutter, a moving frame and a locking mechanism, the moving frame is arranged at the bottom end of the fireproof roller shutter, and the locking mechanism comprises a first locking part and a second locking part; the first locking part is arranged on the inner wall of the bottom end of the frame body or the bottom end of the side wall of the frame body, the second locking part is arranged on the movable frame, and after the fireproof roller shutter moves downwards to be in a completely closed state, the first locking part and the second locking part are connected in a clamped mode, so that the fireproof roller shutter cannot move upwards, and the fireproof roller shutter cannot move upwards. Therefore, the fireproof roller shutter is fixed in a closed state, indoor smoke and open fire are stably blocked, and the safety of escape personnel is guaranteed.

Description

[0001] This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on January 17, 2024, with application number 202420117357.7 and invention name “A kind of escape platform and slow descent device”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the technical field of fireproof roller shutters, and in particular to an escape platform fireproof curtain and an escape platform. Background Art

[0003] When dangerous situations occur in high-rise buildings, people inside the building are often unable to escape quickly, especially in scenarios such as fires. The elevators inside the building cannot be used or are not suitable for use, and the speed and capacity of safety passages (stairs) are low, which greatly delays the escape of people and easily creates serious safety hazards.

[0004] The escape platform is usually installed on the hole set up in the building for people to escape in an emergency, so that people in the room can evacuate quickly. After the people reach the load-bearing platform, they open the fireproof and heat-insulating curtain to form a partition seal between the load-bearing platform and the indoor side of the building to ensure the safety of the escapees. In actual use, under the action of indoor and outdoor wind pressure, the fireproof and heat-insulating curtain is difficult to fix, resulting in partial opening, so that the indoor smoke and open flames in the fire threaten the safety of the escapees on the escape platform. For this reason, a fireproof curtain for the escape platform that can be stably fixed is specially proposed. Summary of the invention

[0005] The embodiment of the present application provides an escape platform fire curtain and an escape platform. The escape platform fire curtain is connected to a frame through a locking mechanism, so that the fire curtain is fixed in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of escapees. The present application solves the problem that the fireproof and heat-insulating curtain is difficult to stably fix and is easily opened under the action of indoor and outdoor wind pressure, resulting in indoor smoke and open flames in a fire threatening the safety of escapees.

[0006] In a first aspect, an embodiment of the present application provides an escape platform fire curtain, including a frame, a rolling mechanism, a fire curtain, a moving frame, and a locking mechanism;

[0007] The winding mechanism is arranged on the frame;

[0008] One end of the fireproof rolling curtain is connected to the rolling mechanism, and the other end of the fireproof rolling curtain is connected to the moving frame;

[0009] The locking mechanism includes a first locking part and a second locking part, the first locking part is arranged on the bottom inner wall of the frame body, or the bottom end of the side wall, and the second locking part is arranged on the movable frame; the first locking part is snap-connected with the second locking part to fix the fireproof roller shutter in a closed state.

[0010] In a feasible implementation, the locking mechanism is a hook locking mechanism;

[0011] The second locking part includes a second hooking member, and the second hooking member is arranged on the moving frame; the first locking part includes a first hooking member, and the first hooking member is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall;

[0012] The second hooking member is engaged with the first hooking member to fix the fireproof rolling curtain in a closed state.

[0013] In a feasible implementation, the second hooking member includes a first connecting block and a hook, the first connecting block is arranged on the moving frame, and the hook is arranged on a side wall of the first connecting block;

[0014] The first hook member includes a clamping portion, the clamping portion is arranged on the frame, and the clamping hook is clamped with the clamping portion.

[0015] In a feasible implementation, the locking mechanism is a squeeze locking mechanism;

[0016] The second locking portion includes a first extruded member, which is disposed on the moving frame; the first locking portion includes a first elastic extrusion component, which is disposed on the bottom inner wall of the frame body or the bottom end of the side wall;

[0017] The first elastic extrusion component clamps the first extruded member to fix the fireproof rolling curtain in a closed state.

[0018] In a feasible implementation, the first extruded member includes a second connecting block, the second connecting block is arranged on the moving frame, and first extrusion grooves are arranged on both side outer walls of the second connecting block.

[0019] The first elastic extrusion assembly includes a first elastic member and a first extrusion member, a groove is provided on the inner wall of the bottom end or the side wall of the frame, and groove bodies are provided on the inner walls on both sides of the groove, and the first elastic member is provided in both groove bodies, and the outer ends of the two first extrusion members are respectively plugged into the two groove bodies, and the first extrusion member in the same groove body abuts against the first elastic member;

[0020] The second connection block is inserted into the groove, and the inner ends of the two first extrusion members are respectively abutted against the first extrusion grooves on both sides of the second connection block.

[0021] In a feasible implementation, the locking mechanism is a squeeze locking mechanism;

[0022] The second locking portion includes a second elastic extrusion component, which is arranged on the moving frame; the first locking portion includes a second extruded member, which is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall;

[0023] The second elastic extrusion component clamps the second extruded member to fix the fireproof rolling curtain in a closed state.

[0024] In a feasible implementation, the second elastic extrusion assembly includes a fourth connection block, a second elastic member and a second extrusion member, one end of the second elastic member in the extension direction is connected to the fourth connection block, and the other end of the second elastic member in the extension direction is connected to the second extrusion member;

[0025] The second extruded member includes a second extrusion groove, and the second extrusion groove is arranged on a side of the frame body facing the second extrusion member;

[0026] When one end of the second extrusion member away from the second elastic member is plugged into the second extrusion groove, the second elastic member is in a force storage state.

[0027] In a feasible implementation, the locking mechanism is a plug-in locking mechanism;

[0028] The second locking portion includes a second plug-in portion, and the second plug-in portion is arranged on the moving frame; the first locking portion includes a first plug-in portion, and the first plug-in portion is arranged on the frame;

[0029] The first plug-in portion is plugged into the second plug-in component to fix the fireproof rolling curtain in a closed state.

[0030] In a feasible implementation, the second plug-in portion includes a third connecting block and a first plug-in member, the third connecting block is arranged on the moving frame, and the first plug-in member is arranged on the outer wall of the third connecting block;

[0031] The first plug-in portion includes a first plug rod, the frame is provided with a plug hole, and the first plug rod is plugged into the plug hole;

[0032] The first plugging rod is plugged into the first connected component.

[0033] In a feasible implementation, the locking mechanism is a plug-in locking mechanism;

[0034] The second locking portion includes a third plug-in portion, and the third plug-in portion is arranged on the moving frame; the first locking portion includes a fourth plug-in portion, and the fourth plug-in portion is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall;

[0035] The third plug-in portion is plugged into the fourth plug-in component to fix the fireproof rolling curtain in a closed state.

[0036] In a feasible implementation, the third plug-in portion includes a fourth connecting block, a third elastic member and a second plug rod, one end of the third elastic member in the extension direction is connected to the fourth connecting block, and the other end of the third elastic member in the extension direction is connected to the second plug rod;

[0037] The fourth plug-in portion includes a second plug-in component, and the second plug-in component is arranged on a side of the frame body facing the second plug rod;

[0038] The second plugging rod is plugged into the second connected member.

[0039] In a feasible implementation, the escape platform fire curtain further includes an operating mechanism;

[0040] The operating mechanism is provided with a heat insulation part;

[0041] The operating mechanism is arranged on the movable frame or the frame body, and the operating mechanism is connected to the first locking part or the second locking part. The operating mechanism is used to make the first locking part and the second locking part engage and lock or disengage and unlock, and the operating mechanism is also used to open or close the fireproof roller shutter.

[0042] In a feasible implementation, the operating mechanism is a handle structure;

[0043] The operating mechanism comprises a handle, and two handles are respectively arranged on the outer walls of both sides of the moving frame.

[0044] In a feasible implementation, the operating mechanism is a handle structure;

[0045] The handle structure comprises a handle member, and the handle member is arranged on a movable frame of the first locking part.

[0046] In a feasible implementation, the fireproof rolling shutter includes a rolling shutter body and sliding parts arranged on both sides of the rolling shutter body;

[0047] The inner walls on both sides of the frame are provided with guide parts;

[0048] The two sliding parts are respectively slidably connected to the guide part on the same side.

[0049] In a feasible implementation, the rolling mechanism includes a rolling blind shaft;

[0050] The rolling curtain shaft is arranged in the accommodating cavity, and the end of the rolling curtain shaft is rotatably connected to the inner wall of the accommodating cavity;

[0051] The inner end of the fireproof rolling curtain is connected to the outer wall of the rolling curtain shaft, and the fireproof rolling curtain is wound around the outer wall of the rolling curtain shaft.

[0052] In a feasible implementation, the winding mechanism further includes a clockwork spring;

[0053] The spring is sleeved on the rolling curtain shaft, the inner end of the spring is connected to the outer wall of the rolling curtain shaft, and the outer end of the spring is connected to the inner wall of the accommodating cavity;

[0054] The clockwork spring is always in an energy storage state, applying a torsion force to the rolling shutter shaft to rotate the rolling shutter shaft and retract the fireproof rolling shutter;

[0055] The movable frame is snap-connected with the exit of the frame body.

[0056] In a feasible implementation, the winding mechanism further includes a rotating member;

[0057] The rotating member is rotatably connected to the frame, and the inner end of the rotating member extends into the accommodating cavity and is connected to the rolling blind shaft;

[0058] The rotating member drives the rolling blind shaft to rotate.

[0059] In a feasible implementation, the outer wall of the rolling shutter shaft is provided with a rolling shutter fixing portion, and the inner end of the fireproof rolling shutter is connected to the rolling shutter fixing portion.

[0060] In a second aspect, an embodiment of the present application provides an escape platform, including a load-bearing platform, a fixing frame, and the escape platform fire curtain described above;

[0061] The fixing frame is arranged in the opening opened in the facade of the building, the bearing platform is arranged in the fixing frame, the fire curtain of the escape platform is fixedly connected with the fixing frame or the opening, and the fire curtain of the escape platform is located on the indoor side of the bearing platform

[0062] An embodiment of the present application provides an escape platform fire curtain and an escape platform, wherein the escape platform fire curtain comprises a frame, a rolling mechanism, a fire curtain, a movable frame and a locking mechanism, wherein a movable frame is provided at the bottom end of the fire curtain, and the locking mechanism comprises a first locking portion and a second locking portion, wherein the first locking portion is arranged on the inner wall at the bottom end of the frame, or on the bottom end of the side wall, and the second locking portion is arranged on the movable frame, and after the fire curtain moves downward to reach a fully closed state, the first locking portion is engaged with the second locking portion, so that the fire curtain cannot move upward, thereby fixing the fire curtain in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of escapees. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A first schematic diagram of an escape platform provided in an embodiment of the present application;

[0064] Figure 2 A second schematic diagram of an escape platform provided in an embodiment of the present application;

[0065] Figure 3 A third schematic diagram of an escape platform provided in an embodiment of the present application;

[0066] Figure 4 A fourth schematic diagram of an escape platform provided in an embodiment of the present application;

[0067] Figure 5 A fifth schematic diagram of an escape platform provided in an embodiment of the present application;

[0068] Figure 6 A sixth schematic diagram of an escape platform provided in an embodiment of the present application;

[0069] Figure 7 A seventh schematic diagram of an escape platform provided in an embodiment of the present application;

[0070] Figure 8 A schematic diagram of the structure of the fire curtain for the escape platform provided in the embodiment of the present application;

[0071] Fig. 9 It is a side view of the fire curtain of the escape platform;

[0072] Fig.10 It is a structural schematic diagram of the first locking mechanism;

[0073] Fig.11 is a structural schematic diagram of a second locking mechanism;

[0074] Fig.12 is a schematic diagram of the structure of the third locking mechanism;

[0075] Fig.13 is a structural schematic diagram of a fourth locking mechanism;

[0076] Fig.14 is a structural schematic diagram of a fifth locking mechanism;

[0077] Fig.15 is a structural schematic diagram of a sixth locking mechanism;

[0078] Fig.16 It is a structural diagram of fireproof roller shutter;

[0079] Fig.17 It is a schematic diagram of the connection structure between the fireproof roller shutter and the frame;

[0080] Fig.18 It is a structural schematic diagram of the winding mechanism;

[0081] Fig.19 A cross-sectional view of the roller blind shaft.

[0082] Description of reference numerals:

[0083] 1-fixed frame; 11-side frame; 111-first accommodating space; 112-second accommodating space; 12-second sealing body; 13-second first locking part; 131-hinge structure; 2-manual switch; 21-protection structure; 3-recovery device; 4-carrying platform; 41-first sealing body; 42-first first locking part; 5-slant-stayed component; 6-guardrail; 7-slow-down device; 71-slow-down rope; 72-connecting end; 8-connecting part; 9-fire curtain of escape platform;

[0084] 9100-frame; 9200-rewinding mechanism; 9300-fireproof roller shutter; 9400-moving frame; 9500-locking mechanism; 9600-operating mechanism;

[0085] 9101-accommodating chamber; 9102-exit; 9103-guiding part; 9201-rolling curtain shaft; 9202-clockwork spring; 9203-rotating part; 9301-rolling curtain body; 9302-sliding part; 9501-first connecting block; 9502-hooking; 9503-clamping part; 9504-second connecting block; 9505-first elastic member; 9506-first extruding member; 9507-third connecting block; 9508-first plug-in member; 9509-first plug-in rod; 9510-second extrusion groove; 9511-fourth connecting block; 9512-second elastic member; 9513-second extruding member; 9514-fourth connecting block; 9515-third elastic member; 9516-second plug-in rod; 9517-second plug-in member; 9601-handle; 9602-handle member. DETAILED DESCRIPTION

[0086] An escape platform is a structure that can be opened on each floor of a building to form an escape platform on the exterior wall when a dangerous situation occurs. Existing buildings are usually equipped with casement, sliding, top-hung and bottom-hung windows for lighting and ventilation, but because the windows have small opening panels and small opening areas, they cannot form a platform for people to gather after opening, which greatly reduces the chances of trapped people escaping.

[0087] The escape platform involved in the present application can be set at a position on each floor of the building that is convenient for escape. When closed, the platform can be used as a part of the building itself, and can also be used to realize functions such as window lighting, ventilation and smoke exhaust. When opened, a platform can be formed on the facade of the building with a certain carrying capacity. Escaping personnel can gather on the platform to wait for rescue, or use a slow-descent device to descend to a safe position to escape danger.

[0088] like Figure 1-Figure 7 As shown, the escape platform provided in the embodiment of the present application is installed in the opening of the building, and at the same time, the position of the escape platform needs to be ensured to meet the requirements of the facade effect of the building. The escape platform includes a bearing platform 4 and a fixed frame 1, the fixed frame 1 is set on the opening opened on the facade of the building, the bearing platform 4 and the fixed frame 1 are movably connected, and a manual switch 2 is provided on one side of the fixed frame 1 in the room, and the manual switch 2 is provided with a protective structure 21. Under normal circumstances, the manual switch 2 is sealed inside the protective structure 21 to prevent the manual switch 2 from being accidentally touched. When in use, the manual switch 2 can be operated by opening or removing the protective structure 21.

[0089] A first sealing body 41 is arranged in the frame around the carrying platform 4. When the carrying platform 4 is in a closed state, the first sealing body 41 is squeezed and sealed with a second sealing body 12 arranged on the inner side of the fixed frame 1. A guardrail 6 is arranged on the carrying platform 4. The guardrail 6 is located at the edge of the carrying platform 4 and is foldably hidden in the first accommodating space 111 of the two side frames 11 of the fixed frame 1, and is foldably hidden in the second accommodating space 112 of the upper frame of the fixed frame.

[0090] The diagonal member 5 is arranged between the two side edges of the supporting platform 4 and the two side frames 11 of the fixed frame 1, and the diagonal member 5 is hidden in the first accommodating space 111 of the two side frames 11 of the fixed frame 1; a first first locking portion 42 is provided on the frame of the supporting platform 4, and the first first locking portion 42 forms a locked state with the second first locking portion 13 provided on the frame of the fixed frame.

[0091] After the carrying platform 4 is opened by the manual switch 2, the carrying platform 4 is connected to the lower frame of the fixed frame 1, so that the carrying platform 4 is rotated toward the outdoor side and opened to the set position and stops. Specifically, the connection and rotation can be achieved through the hinge structure 131. When the carrying platform 4 is in the open state, people need to gather on the carrying platform 4 when escaping, and the carrying platform 4 should have a certain carrying capacity.

[0092] In order to ensure the safety of the escapees, the load-bearing platform 4 forms a cantilever structure with the wall after it is opened. The higher the escape hole is set and the longer the cantilever of the cantilever structure is, the more unfavorable it is to the load-bearing capacity of the load-bearing platform 4. Therefore, after the load-bearing platform 4 is opened, inclined-stayed components 5 connected to the load-bearing platform 4 are provided on both sides of the fixed frame 1 to enhance the load-bearing strength of the load-bearing platform 4.

[0093] The inclined component 5 can be a rod-type structure and be provided with a limit device, so that the inclined component 5 can run in a specified direction when the load-bearing platform 4 returns to a closed state, and the inclined component 5 can be located in a first accommodating room provided by the load-bearing platform 4 or the fixed frame 1; the inclined component 5 can also be a telescopic component, which extends or retracts to a set direction or a set position when the load-bearing platform 4 is opened, and the telescopic component is located in the accommodating space of the load-bearing platform 4 or the fixed frame 1 when the load-bearing platform 4 returns to a closed state; the inclined component 5 can also be a rope-type or chain-type component, and when the load-bearing platform 4 is in an open state, the rope-type or chain-type component extends to a set position and stops running, and a counterweight structure or a friction structure can be provided at one end of the rope-type or chain-type component to enable the load-bearing platform 4 to open slowly.

[0094] At this time, the load-bearing platform 4 has an escape function, but in order to ensure that the escapees on the load-bearing platform 4 do not fall, when the load-bearing platform 4 is in the open state, a safety guardrail 6 can be set on the side of the load-bearing platform 4 that is not connected to the wall. When the load-bearing platform 4 is opened, the guardrail 6 automatically rises to improve the safety of the load-bearing platform 4. A spring pneumatic telescopic device is set between the load-bearing platform 4 and the guardrail 6. During the opening process of the load-bearing platform 4, under the pulling force or thrust of the spring pneumatic telescopic device, the guardrail 6 rises to the set height and locks. A gap is set at the guardrail position of the load-bearing platform for escapees. After wearing the escape equipment, the escapee can escape safely through the gap without climbing over the guardrail to escape. The number and position of the gap can be set according to the usage. A railing is set at the gap position. Before using the gap, the railing is manually opened to escape.

[0095] The fixed frame 1 is also provided with a connection part 8 of a backpack type slow-down device. When the escapee puts on the escape backpack, the slow-down rope of the backpack type slow-down device is connected to the connection part 8, and the lifting and lowering of the backpack type slow-down device is realized by the slow-down rope. Specifically, after the escapee puts on the backpack type slow-down device, the connection end of the slow-down rope is connected to the connection end of the connection part 8. In actual use, the backpack type slow-down device realizes slow-down under a certain gravity through the friction part. The slow-down rope is stored in a winch connected to the friction part. The whole component is installed in the backpack. The connection end of the slow-down rope extends out of the backpack and is connected to the connection part 8 provided on the fixed frame 1. The escapee can realize escape after fixing the backpack type slow-down device on the body through a safety belt. The friction force of the friction part can be adjusted, and the adjustment of the friction force can change the descending speed; the backpack type slow-down device can be provided with a descending stop device, and the descending stop device can be manually controlled. The descending stop device can increase the friction force by squeezing the friction part through the squeezing structure, and stop descending when the friction force is greater than the gravity; it can also increase the friction force by squeezing the slow-down rope through the squeezing structure, and stop descending when the friction force is greater than the gravity.

[0096] The escape platform is also provided with a recovery device 3, which is arranged on the fixed frame 1. After the carrying platform 4 is opened to complete the escape task, the various functions and components of the carrying platform 4 are checked. When the various functions and components of the carrying platform 4 are checked to be intact, the recovery device 3 can be used to manually restore the carrying platform 4 to a closed state from the indoor side, and the locking is achieved through the locking structure arranged on the fixed frame 1 and the carrying platform 4. After the carrying platform 4 is restored to its initial state, the carrying platform 4 can still be reused.

[0097] Specifically, a rope-like component can be used to connect the recovery device 3 and the carrying platform 4, that is, one end of the rope-like component is connected to the carrying platform 4, and the other end is connected to the rope pulley of the recovery device 3, and the rope pulley is controlled by the one-way movement principle of the pawl, that is, the tool corresponding to the pawl can be used to rotate the rope pulley, so that the rope-like component is wound around the rope pulley, and the carrying platform 4 is pulled back to its initial state; chain-like components can also be used, and the chain cooperates with the sprocket, and the chain is contracted by rotating the sprocket, and the contracted chain enters the set accommodating space, pulling the carrying platform 4 back to its initial state, closed state, and locked; a screw rod structure can also be used to achieve recovery, and the screw rod is rotated to make the nut connected to the screw rod move in a straight line, and the nut rope component, chain component or connecting rod component is connected to the escape platform, and the nut runs in the set direction to restore the escape platform to its initial state and lock it.

[0098] The escape platform can also be provided with a slow-descending device 7, and escape can be achieved through the slow-descending device 7. When in use, the escapee needs to wear an escape safety harness, and after putting on the safety harness, connect the safety harness to the slow-descending rope 71 of the slow-descending device 7, and can slowly descend to a safe position or escape on the ground; the slow-descending device 7 is arranged on the indoor wall, and the number can be set to multiple, and the connecting end connected to the safety harness worn by the escapee extends out of the outdoor side, which is convenient for the escapee to connect to the connecting end of the slow-descending device after putting on the safety harness and escape quickly.

[0099] The descending slow device 7 can also be arranged on the fixed frame 1, and the number can be set to be multiple. The connecting end 72 of the descending slow device 7 arranged on the fixed frame 1 also extends out of the outside of the room, so as to facilitate the escapee to escape quickly.

[0100] The descending control device 7 may also be provided separately from the supporting platform 4. For example, a first connection portion and a third first locking portion connected to the descending control device 7 are provided on the fixing frame 1 or the supporting platform 4, and the number of the first connection portion and the third first locking portion are at least one. After the supporting platform 4 is opened, the escapee fixes the descending control device 7 to the first connection portion and locks it through the third first locking portion. After the escapee puts on the safety harness, the safety harness will be connected to the connecting end 72 of the descending control device. It should be noted that the number of the above-mentioned first connection portion and the third first locking portion is set to multiple. In actual use, it is not necessary to use multiple first connection portions and the third first locking portion at the same time to realize the escape function. Instead, one escape or one escapee only needs to use a pair of first connection portions and the third first locking portion. Setting multiple first connection portions and the third first locking portion is convenient for the escapee to fix the safety harness on the one hand, and convenient for multiple escapees to escape at the same time on the other hand.

[0101] The slow-descent device 7 can also be set as a reciprocating operation structure. For example, each slow-descent device 7 is provided with two second connecting parts, and the two second connecting parts cannot be used at the same time. When escaping, the first escapee first uses one of the second connecting parts to descend to a safe place or the ground, and then takes off the escape harness. At this time, the person to be escaped on the supporting platform 4 can use the other second connecting part to descend. When the second person to be escaped descends, the connecting end 72 used by the first escapee is recovered with the escape harness to the initial position on the supporting platform 4, and can be used again by the escapee. In this way, in the subsequent escape process of the escapee, there is no need to perform repeated fixing work, and the person only needs to put on the escape harness to quickly escape from the dangerous environment.

[0102] The escape platform can also be provided with a fireproof heat-insulating curtain 9, which is arranged on the indoor side of the upper frame of the fixed frame 1, and the guide part of the fireproof heat-insulating curtain 9 is arranged on the indoor side of the side frame 11 of the fixed frame 1. After the escapee reaches the bearing platform 4, the fireproof heat-insulating curtain 9 can be manually pulled down, thereby forming a partition seal between the bearing platform 4 and the indoor side of the building. At this time, if there are still people in the room who have not escaped to the bearing platform 4, the fireproof heat-insulating curtain 9 can also be opened from the indoor side. After reaching the bearing platform 4, the fireproof heat-insulating curtain 9 can be closed again to form a partition layer, making the bearing platform 4 space safer to gain more escape time.

[0103] The fireproof heat-insulating curtain 9 is rotated and retracted under the axis of the accommodating space by spring force. When the downward pulling force is greater than the spring force, the heat-insulating curtain moves downward along the guide parts on both sides to the set position. A locking structure is provided at the set position. This locking structure can be opened from both indoor and outdoor sides, so that people who have not escaped to the escape platform can continue to hide and escape.

[0104] It should be noted that the descent control device 7 provided in the embodiment of the present application can also be used alone and is not limited to construction scenes, but can also be used in other scenes with height differences, such as tower cranes, mountains, bridges, mines or ships.

[0105] Based on the above escape platform, the specific structure of the fireproof and heat-insulating curtain 9 is described in detail as follows:

[0106] See also Figure 8-Figure 19 As shown, the present application provides an escape platform fire curtain, namely the fireproof and heat-insulating curtain mentioned above, specifically comprising:

[0107] The frame 9100 is not limited in shape, but because the opening of the building is usually rectangular, the fixed frame 1 is designed to be a rectangle that matches the opening. Therefore, the frame 9100 is usually designed to be a rectangular frame, the outer contour of the frame 9100 matches the inner contour of the opening, and the frame 9100 is fixed in the opening; or the outer contour of the frame 9100 matches the inner contour of the fixed frame 1, and the frame 9100 is fixed in the fixed frame 1;

[0108] The top of the frame 9100 has a certain thickness, and a receiving cavity 9101 is provided on the top of the frame 9100. The receiving cavity 9101 may be a rectangular cavity or a cylindrical cavity. The outer wall of the frame 9100 is provided with an outlet 9102 connected to the receiving cavity 9101. The outlet 9102 may be a long strip opening, and the outlet 9102 is vertically downward.

[0109] A reeling mechanism 9200 is disposed on the frame 9100, and the reeling portion of the reeling mechanism 9200 is located in the accommodating cavity 9101; a fireproof rolling curtain 9300 is disposed in the accommodating cavity 9101, and the inner end of the fireproof rolling curtain 9300 is connected to the reeling portion of the reeling mechanism 9200, and the outer end of the fireproof rolling curtain 9300 passes through the outlet 9102 and extends to the outside of the accommodating cavity 9101; a moving frame 9400 connected to the outer end of the fireproof rolling curtain 9300, and the moving frame 9400 can be a rectangular parallelepiped frame, and the length of the moving frame 9400 matches the inner contour width of the frame 9100;

[0110] A locking mechanism 9500 for fixing the fireproof rolling curtain 9300, the locking mechanism 9500 comprises a first locking part and a second locking part, the first locking part is arranged on the inner wall at the bottom end of the frame body 9100, or the bottom end of the side wall, and the second locking part is arranged on the moving frame 9400;

[0111] When the fireproof roller shutter 9300 moves downward to reach a fully closed state, the first locking part and the second locking part are engaged, so that the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of escaping personnel.

[0112] Reference Fig.10 As shown, in some embodiments, the locking mechanism 9500 is a hook-and-loop locking mechanism;

[0113] The second locking part includes a second hooking member, which may be a card block or a card hook with an opening upward, and the second hooking member is arranged on the moving frame 9400; the first locking part includes a first hooking member, which may be a card hook or a card block with an opening downward, and the first hooking member is arranged on the bottom inner wall of the frame body 9100, or the bottom end of the side wall;

[0114] After the fireproof rolling curtain 9300 moves downward to reach the fully closed state, the second hooking member is engaged with the first hooking member, so that the fireproof rolling curtain 9300 cannot move upward, so that the fireproof rolling curtain 9300 is fixed in the closed state.

[0115] Further, the second hooking member includes a first connecting block 9501 and a hook 9502. The first connecting block 9501 can be a rectangular plug plate. The length of the first connecting block 9501 matches the length of the moving frame 9400. The first connecting block 9501 is fixed to the bottom end of the moving frame 9400. The hook 9502 is an elastic hook with an opening facing downward. The hook 9502 is arranged on the side wall of the first connecting block 9501.

[0116] The first hook member includes a clamping portion 9503, which may be an elastic clamping hook with an opening facing downward. A groove is provided on the inner wall of the bottom end of the frame body 9100, and the clamping portion 9503 is disposed on the inner wall of the groove.

[0117] During the closing process of the fireproof rolling curtain 9300, the fireproof rolling curtain 9300 and the moving frame 9400 gradually descend, and the first connecting block 9501 is plugged into the groove. When the fireproof rolling curtain 9300 reaches a fully closed state, the hook 9502 is engaged with the clamping portion 9503, so that the hook 9502, the moving frame 9400 and the fireproof rolling curtain 9300 cannot move upward, thereby fixing the fireproof rolling curtain 9300 in a closed state;

[0118] Or, the first connection block 9501 is arranged on the side wall of the moving frame 9400, the side wall of the frame body 9100 is provided with a groove, the first connection block 9501 is located in the groove, and as the fireproof roller shutter 9300 and the moving frame 9400 are raised and lowered, the first connection block 9501 slides up and down in the groove;

[0119] When the fireproof roller shutter 9300 and the movable frame 9400 are lowered to a fully closed state, the hook 9502 is engaged with the engaging portion 9503, so that the hook 9502, the movable frame 9400 and the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state.

[0120] Reference Fig.11 As shown, further, the clamping portion 9503 can also be a groove body arranged obliquely, and the hook 9502 is an elastic hook. When the fireproof rolling curtain 9300 is closed, the hook 9502 moves downward with the fireproof rolling curtain 9300. When the hook 9502 is lower than the clamping portion 9503, the first connecting block 9501 and the hook 9502 are pushed toward the hook 9502 side, and then the fireproof rolling curtain 9300 is released, and the hook 9502 enters the clamping portion 9503, so that the fireproof rolling curtain 9300 cannot move upward, thereby fixing the fireproof rolling curtain 9300 in a closed state;

[0121] When opening the fireproof rolling curtain 9300, the user can pull the first connecting block 9501 and the hook 9502 diagonally downward to disengage the hook 9502 from the engaging portion 9503, thereby releasing the fireproof rolling curtain 9300, and the fireproof rolling curtain 9300 can be raised and stored.

[0122] Reference Fig.12 As shown, in some embodiments, the locking mechanism 9500 is a squeeze locking mechanism;

[0123] The second locking part includes a first extruded member, which may be a plate or a block, and is disposed on the moving frame 9400; the first locking part includes a first elastic extrusion component, which may be an elastic telescopic rod, and is disposed on the bottom inner wall of the frame 9100, or the bottom end of the side wall;

[0124] When the fireproof roller shutter 9300 moves downward to reach a fully closed state, multiple first elastic extrusion components clamp the first extruded component, so that the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of escaping personnel.

[0125] Furthermore, the first extruded member includes a second connecting block 9504, which is a rectangular block. The second connecting block 9504 is disposed at the bottom end of the moving frame 9400, and the outer walls on both sides of the second connecting block 9504 are oppositely provided with first extrusion grooves, which can be circular grooves.

[0126] The first elastic extrusion component includes a first elastic member 9505 and a first extrusion member 9506. The first elastic member 9505 can be a spring. A groove is provided on the inner wall of the bottom end of the frame 9100. Grooves are provided on the inner walls on both sides of the groove. The first elastic member 9505 is provided in both grooves. The outer ends of the two first extrusion members 9506 are respectively plugged into the two grooves, and the first extrusion member 9506 in the same groove abuts against the first elastic member 9505. The inner ends of the two first extrusion members 9506 are arc-shaped surfaces or are provided with guiding inclined surfaces.

[0127] During the closing process of the fireproof rolling curtain 9300, the fireproof rolling curtain 9300 and the moving frame 9400 gradually descend, the second connecting block 9504 is inserted into the groove, and the arcuate surfaces or guide slopes of the two first extrusion members 9506 are slidably connected with the outer wall of the second connecting block 9504. When the fireproof rolling curtain 9300 reaches a fully closed state, the inner ends of the two first extrusion members 9506 are respectively abutted against the first extrusion grooves on both sides of the second connecting block 9504, so that the second connecting block 9504, the moving frame 9400 and the fireproof rolling curtain 9300 cannot move upward, thereby fixing the fireproof rolling curtain 9300 in a closed state;

[0128] Or, the second connection block 9504 is arranged on the side wall of the moving frame 9400, the side wall of the frame body 9100 is provided with a groove, the second connection block 9504 is located in the groove, and as the fireproof roller shutter 9300 and the moving frame 9400 are raised and lowered, the second connection block 9504 slides up and down in the groove;

[0129] When the fireproof roller shutter 9300 and the movable frame 9400 descend to a fully closed state, the inner ends of the two first extrusion members 9506 respectively abut against the first extrusion grooves on both sides of the second connecting block 9504, so that the second connecting block 9504, the movable frame 9400 and the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state.

[0130] The locking mechanism 9500 is a squeeze locking mechanism;

[0131] The second locking part includes a second elastic extrusion component, which is arranged on the moving frame 9400; the first locking part includes a second extruded member, which is arranged on the bottom inner wall of the frame body 9100, or the bottom end of the side wall;

[0132] When the fireproof roller shutter 9300 moves downward to reach a fully closed state, multiple second elastic extrusion components clamp the second extruded component, so that the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of escaping personnel.

[0133] Furthermore, the second extruded member includes a second extrusion groove 9510, and the second extrusion groove 9510 is disposed on a side of the frame 9100 facing the second extrusion member;

[0134] The second elastic extrusion assembly includes a fourth connection block 9511, a second elastic member 9512 and a second extrusion member 9513, one end of the second elastic member 9512 in the extension direction is connected to the fourth connection block 9511, and the other end of the second elastic member 9512 in the extension direction is connected to the second extrusion member 9513;

[0135] like Fig.13 As shown, a cavity is provided in the fourth connecting block 9511, and a through hole connected to the cavity is provided on the outer wall of the fourth connecting block 9511. The second elastic member 9512 may be a spring, and the second elastic member 9512 is disposed in the cavity. The second extrusion member 9513 is a rod, and the second extrusion member 9513 is plugged into the through hole. One end of the second elastic member 9512 is connected to the inner wall of the cavity, and the other end is connected to one end of the second extrusion member 9513 located in the cavity.

[0136] The second extrusion groove 9510 may be a spherical groove, and the outer end of the second extrusion piece 9513 is provided with a spherical head. The outer end of the second extrusion piece 9513 is plugged into the second extrusion groove 9510, and the second elastic piece 9512 is always in a compressed state;

[0137] During the closing process of the fireproof roller shutter 9300, the fireproof roller shutter 9300 and the movable frame 9400 gradually descend, and the fourth connecting block 9511 moves downward. When the fireproof roller shutter 9300 reaches a fully closed state, the second extrusion piece 9513 is inserted into the second extrusion groove 9510, so that the movable frame 9400 and the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state.

[0138] Reference Fig.14 As shown, in some embodiments, the locking mechanism 9500 is a plug-in locking mechanism;

[0139] The second locking part includes a second plug-in part, which can be a ring body or a block with a plug hole, and the second plug-in part is arranged on the moving frame 9400; the first locking part includes a first plug-in part, which can be a telescopic first plug-in rod, and the first plug-in part is arranged on the bottom inner wall of the frame body 9100, or the bottom end of the side wall;

[0140] After the fireproof rolling curtain 9300 moves downward to reach a fully closed state, the first plug-in portion is plugged into the second plug-in portion, so that the fireproof rolling curtain 9300 cannot move upward, so that the fireproof rolling curtain 9300 is fixed in a closed state.

[0141] Further, the second plug-in portion includes a third connection block 9507 and a first plug-in member 9508, the third connection block 9507 is a rectangular block, the third connection block 9507 is arranged at the bottom end of the moving frame 9400, the first plug-in member 9508 can be a metal ring, and the first plug-in member 9508 is arranged on the outer wall of the third connection block 9507;

[0142] The first plug-in portion includes a first plug rod 9509, a groove is provided on the inner wall of the bottom end of the frame 9100, and a plug hole connected to the groove is provided on the outer wall of the frame 9100, and the first plug rod 9509 is plugged into the plug hole;

[0143] During the closing process of the fireproof rolling curtain 9300, the fireproof rolling curtain 9300 and the moving frame 9400 gradually descend, and the third connecting block 9507 is plugged into the groove. When the fireproof rolling curtain 9300 reaches a fully closed state, the first plugging rod 9509 corresponds to the position of the first plugged part 9508. The first plugging rod 9509 is pushed to plug the first plugged part 9508, so that the first plugged part 9508, the third connecting block 9507, the moving frame 9400 and the fireproof rolling curtain 9300 cannot move upward, so that the fireproof rolling curtain 9300 is fixed in a closed state.

[0144] Or, the third connection block 9507 is arranged on the side wall of the moving frame 9400, the side wall of the frame body 9100 is provided with a groove, the third connection block 9507 is located in the groove, and as the fireproof roller shutter 9300 and the moving frame 9400 are raised and lowered, the third connection block 9507 slides up and down in the groove;

[0145] When the fireproof roller shutter 9300 and the movable frame 9400 descend to a fully closed state, the first plug rod 9509 corresponds to the position of the first connected component 9508. Pushing the first plug rod 9509 so that the first plug rod 9509 is plugged into the first connected component 9508 can prevent the first connected component 9508, the third connecting block 9507, the movable frame 9400 and the fireproof roller shutter 9300 from moving upward, thereby fixing the fireproof roller shutter 9300 in a closed state.

[0146] In some embodiments, the locking mechanism 9500 is a plug-in locking mechanism;

[0147] The second locking part includes a third plug-in part, which can be a round rod body and is arranged on the moving frame 9400; the first locking part includes a fourth plug-in part, which can be a plug hole or a ring body and is arranged on the bottom inner wall of the frame body 9100, or the bottom end of the side wall;

[0148] After the fireproof rolling curtain 9300 moves downward to reach the fully closed state, the third plug-in portion is plugged into the fourth plug-in portion, so that the fireproof rolling curtain 9300 cannot move upward, so that the fireproof rolling curtain 9300 is fixed in the closed state.

[0149] Specifically, Fig.15 As shown, the third plug-in portion includes a fourth connection block 9514, a third elastic member 9515 and a second plug rod 9516, one end of the third elastic member 9515 in the extension direction is connected to the fourth connection block 9514, and the other end of the third elastic member 9515 in the extension direction is connected to the second plug rod 9516;

[0150] The inner wall of the fourth connecting block 9514 is provided with a cavity, the outer wall of the fourth connecting block 9514 is provided with a through hole connected to the cavity, the third elastic member 9515 can be a spring, the third elastic member 9515 is arranged in the cavity, one end of the second insertion rod 9516 extends into the cavity through the through hole and is connected to one end of the third elastic member 9515, and the other end of the third elastic member 9515 is connected to the inner wall of the cavity;

[0151] The fourth plug-in portion includes a second plug-in component 9517, which is disposed on a side of the frame body facing the second plug rod 9516, and the second plug-in component 9517 can be a ring body or a plug hole;

[0152] The second plugging rod 9516 is plugged into the second plugged component 9517;

[0153] During the closing process of the fireproof roller shutter 9300, the fireproof roller shutter 9300 and the movable frame 9400 gradually descend, and the fourth connecting block 9514 descends. When the fireproof roller shutter 9300 reaches a fully closed state, the second plug rod 9516 corresponds to the position of the second connected component 9517. The second plug rod 9516 is plugged into the second connected component 9517 under the elastic force of the third elastic component 9515, so that the movable frame 9400 and the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state.

[0154] Reference Figure 3-Figure 15 As shown, in some embodiments, the escape platform fire curtain further includes an operating mechanism 9600;

[0155] The operating mechanism 9600 is disposed on the moving frame 9400 or the frame body 9100. The operating mechanism 9600 is connected to the first locking part or the second locking part. The first locking part and the second locking part are engaged and locked or disengaged and unlocked by the operating mechanism 9600. The fireproof rolling curtain 9300 can also be opened or closed by the operating mechanism 9600.

[0156] When the operating mechanism 9600 is used in a fire scene, in order to avoid scalding the user, a heat insulating portion is provided on the operating mechanism 9600, and the heat insulating portion may be a heat insulating pad, a heat insulating pad handle, etc.

[0157] In some embodiments, the operating mechanism is a handle structure;

[0158] The operating mechanism includes a handle 9601, which is a conventional handle. Two handles 9601 are respectively arranged on the outer walls of both sides of the moving frame 9400;

[0159] The second hooking member includes a first connecting block 9501 and a hook 9502, the first hooking member includes a clamping portion 9503, and the operating mechanism includes a handle 9601, and the handle 9601 drives the moving frame 9400 and the fireproof rolling curtain 9300 to rise and fall;

[0160] When the first locking part is locked with the second locking part, the handle 9601 drives the moving frame 9400, the first connecting block 9501 and the hook 9502 to move downward, and the hook 9502 contacts the clamping part 9503, elastically deforms with sound, and as the hook 9502 continues to move downward, the hook end of the hook 9502 is located at the lower part of the clamping part 9503, so that the hook 9502 is clamped with the clamping part 9503, so that the fireproof rolling curtain 9300 is fixed in the closed state;

[0161] When the first locking part is disengaged and unlocked from the second locking part, the handle 9601 drives the movable frame 9400, the first connecting block 9501 and the hook 9502 to move horizontally a certain length, so that the hook 9502 and the clamping part 9503 are misaligned, and the hook 9502 is separated from the clamping part 9503, so that the hook 9502, the first connecting block 9501, the movable frame 9400 and the fireproof roller shutter 9300 can move upward, and the fireproof roller shutter 9300 can be opened.

[0162] The first extruded member includes a second connecting block 9504, the first elastic extrusion assembly includes a first elastic member 9505 and a first extrusion member 9506, and the operating mechanism includes a handle 9601, and the handle 9601 drives the moving frame 9400 and the fireproof rolling curtain 9300 to rise and fall;

[0163] When the first locking part is locked with the second locking part, the handle 9601 drives the moving frame 9400 and the second connecting block 9504 to move downward, and the outer wall of the second connecting block 9504 is slidably connected with the arc surface or the guide inclined surface of the two first extrusion members 9506. As the second connecting block 9504 continues to move downward, the inner ends of the two first extrusion members 9506 are respectively abutted against the first extrusion grooves on both sides of the second connecting block 9504, so that the fireproof rolling curtain 9300 is fixed in a closed state;

[0164] When the first locking part is disengaged and unlocked from the second locking part, the handle 9601 drives the movable frame 9400 and the second connecting block 9504 to move upward, and the outer wall of the second connecting block 9504 is slidably connected to the arcuate surfaces or guide slopes of the two first extrusion members 9506. The inner ends of the two first extrusion members 9506 are disengaged from the first extrusion grooves, and the fireproof roller shutter 9300 can be opened.

[0165] Reference Fig.11 As shown, in some embodiments, the operating mechanism is a handle structure;

[0166] The handle structure includes a handle member 9602, which is a hand-held member and is disposed on the first locking portion.

[0167] like Fig.11 As shown, the second plug-in portion includes a third connection block 9507 and a first plugged member 9508, the first plug-in portion includes a first plug rod 9509, and the handle structure includes a handle member 9602, which is fixed to the outer end of the first plug rod 9509;

[0168] When the first locking part is locked with the second locking part, the fireproof rolling curtain 9300 and the moving frame 9400 move downward to a fully closed state, the first plugging rod 9509 corresponds to the first plugged part 9508, and the first plugging rod 9509 is pushed inward by the handle 9602 to plug the first plugged part 9508, so that the first plugged part 9508, the third connecting block 9507, the moving frame 9400 and the fireproof rolling curtain 9300 cannot move upward, so that the fireproof rolling curtain 9300 is fixed in a closed state;

[0169] When the first locking part is disengaged and unlocked from the second locking part, the first plug rod 9509 is pulled outwards through the handle 9602 to separate the first plug rod 9509 from the first connected part 9508, and the fireproof rolling shutter 9300 can be opened.

[0170] Reference Fig.14 and Fig.15As shown, in some embodiments, the fireproof rolling curtain 9300 includes a rolling curtain body 9301 and sliding parts 9302 arranged on both sides of the rolling curtain body 9301. The rolling curtain body 9301 is a rectangular rolling curtain with heat insulation and high temperature resistance properties. The two sliding parts 9302 are respectively arranged on both sides of the width direction of the rolling curtain body 9301. The sliding parts 9302 can be bent to a certain extent to facilitate the rolling of the fireproof rolling curtain 9300. The sliding parts 9302 can be a bone chain structure;

[0171] The inner walls of both sides of the frame 9100 are provided with guide parts 9103, and the guide parts 9103 can be described as concave guide grooves or concave guide rails;

[0172] During the lifting and lowering process of the fireproof roller shutter 9300, the two sliding parts 9302 are respectively slidably connected to the guide parts 9103 on the same side, and the sliding parts 9302 do not separate from the guide parts 9103, so that the fireproof roller shutter 9300 will not fall out of the fireproof roller shutter surrounding frame 9100 under the pressure of indoor and outdoor wind pressure.

[0173] Reference Fig.16 and Fig.17 As shown, in some embodiments, the rolling mechanism 9200 includes a rolling blind shaft 9201, and the rolling blind shaft 9201 can be a conventional rotating shaft;

[0174] The rolling curtain shaft 9201 is disposed in the accommodating cavity 9101, and the end of the rolling curtain shaft 9201 is rotatably connected to the inner wall of the accommodating cavity 9101;

[0175] The inner end of the fireproof rolling curtain 9300 is connected to the outer wall of the rolling curtain shaft 9201, and the fireproof rolling curtain 9300 is wound around the outer wall of the rolling curtain shaft 9201;

[0176] When the rolling shutter shaft 9201 rotates clockwise, the fireproof rolling shutter 9300 is released, so that the outer end of the fireproof rolling shutter 9300 moves downward, and the fireproof rolling shutter 9300 is closed; conversely, when the rolling shutter shaft 9201 rotates counterclockwise, the fireproof rolling shutter 9300 is rolled up, the fireproof rolling shutter 9300 is wrapped around the outer wall of the rolling shutter shaft 9201, the outer end of the fireproof rolling shutter 9300 moves upward, and the fireproof rolling shutter 9300 is opened.

[0177] like Fig.17 As shown, the outer wall of the rolling shutter shaft 9201 is provided with a rolling shutter fixing portion, which may be a groove, and the inner end of the fireproof rolling shutter 9300 is fixed in the groove.

[0178] Furthermore, the winding mechanism 9200 also includes a spring 9202, which is a conventional spiral spring;

[0179] The spring spring 9202 is sleeved on the curtain shaft 9201, the inner end of the spring spring 9202 is connected to the outer wall of the curtain shaft 9201, and the outer end of the spring spring 9202 is connected to the inner wall of the accommodating cavity 9101;

[0180] When the fireproof rolling shutter 9300 is rolled up on the rolling shutter shaft 9201, the spring spring 9202 releases its energy. When the fireproof rolling shutter 9300 moves downward to close, the spring spring 9202 starts to store energy. The spring spring 9202 is always in an energy storage state, applying a torsion force to the rolling shutter shaft 9201 to make the rolling shutter shaft 9201 rotate counterclockwise to roll up the fireproof rolling shutter 9300.

[0181] The movable frame 9400 is engaged with the exit 9102 of the frame body 9100 to prevent the fireproof rolling curtain 9300 from completely entering the accommodating cavity 9101 .

[0182] Furthermore, the winding mechanism 9200 further includes a rotating member 9203, and the rotating member 9203 may be a handle or a hand wheel;

[0183] The rotating member 9203 is rotatably connected to the frame 9100 , and the inner end of the rotating member 9203 extends into the accommodating cavity 9101 and is connected to the rolling blind shaft 9201 ;

[0184] The rotating member 9203 drives the rolling curtain shaft 9201 to rotate; the rotating member 9203 can be coaxially arranged with the rolling curtain shaft 9201, the rotating member 9203 is directly connected to the rolling curtain shaft 9201, and the rotating member 9203 directly drives the rolling curtain shaft 9201 to rotate synchronously; the rotating member 9203 and the rolling curtain shaft 9201 can also be arranged at a certain angle, the rotating member 9203 is connected to the rolling curtain shaft 9201 through a gear set, and the rotating member 9203 indirectly drives the rolling curtain shaft 9201 to rotate.

[0185] Corresponding to the fire curtain of the escape platform provided in the aforementioned embodiment, the present application further provides an escape platform, including a bearing platform 4 and a fixing frame 1;

[0186] The fixed frame 1 is arranged in a hole opened on the facade of the building, and the carrying platform 4 is movably connected to the fixed frame 1;

[0187] When the carrying platform 4 is in the closed state, the carrying platform 4 is clamped in the fixing frame 1 to block the hole;

[0188] When the carrying platform 4 is in the open state, the carrying platform 4 moves to the outside of the building facade to form a platform for escaping personnel to stay;

[0189] Also includes an escape platform fire curtain of any of the above embodiments;

[0190] The fire curtain of the escape platform is fixedly connected to the fixed frame 1 or the opening, and the fire curtain of the escape platform is located on the indoor side of the bearing platform 4;

[0191] In case of fire, the supporting platform 4 is opened. After the escapees are transferred to the supporting platform 4, the movable frame 9400 and the fireproof roller shutter 9300 are pulled down. After the fireproof roller shutter 9300 is lowered to a fully closed state, the locking mechanism 9500 is engaged and locked, so that the fireproof roller shutter 9300 cannot move upward, thereby fixing the fireproof roller shutter 9300 in a closed state, stably blocking indoor smoke and open flames, and ensuring the safety of the escapees.

[0192] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0193] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An escape platform fire curtain, characterized in that: The fire curtain of the escape platform includes: Frame; A winding mechanism disposed on the frame; A fireproof rolling shutter, one end of which is connected to the rolling mechanism, and the other end of which is connected to the moving frame; The locking mechanism includes a first locking part and a second locking part, wherein the first locking part is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall, and the second locking part is arranged on the movable frame; the first locking part is snap-connected with the second locking part to fix the fireproof roller shutter in a closed state.

2. The fire curtain for escape platform according to claim 1, characterized in that: The locking mechanism is a hook locking mechanism; The second locking part includes a second hooking member, and the second hooking member is arranged on the moving frame; the first locking part includes a first hooking member, and the first hooking member is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall; The second hooking member is engaged with the first hooking member to fix the fireproof rolling curtain in a closed state.

3. The fire curtain for escape platform according to claim 2, characterized in that: The second hooking member includes a first connecting block and a hook, wherein the first connecting block is arranged on the moving frame, and the hook is arranged on a side wall of the first connecting block; The first hook member includes a clamping portion, the clamping portion is arranged on the frame, and the clamping hook is clamped with the clamping portion.

4. The fire curtain for escape platform according to claim 1, characterized in that: The locking mechanism is a squeeze locking mechanism; The second locking portion includes a first extruded member, which is disposed on the moving frame; the first locking portion includes a first elastic extrusion component, which is disposed on the bottom inner wall of the frame body or the bottom end of the side wall; The first elastic extrusion component clamps the first extruded member to fix the fireproof rolling curtain in a closed state.

5. The fire curtain for escape platform according to claim 4, characterized in that: The first extruded member comprises a second connecting block, the second connecting block is arranged on the moving frame, and first extrusion grooves are arranged on two side outer walls of the second connecting block; The first elastic extrusion assembly includes a first elastic member and a first extrusion member, a groove is provided on the inner wall of the bottom end or the side wall of the frame body, and groove bodies are provided on the inner walls on both sides of the groove, and the first elastic member is provided in both groove bodies, and the outer ends of the two first extrusion members are respectively plugged into the two groove bodies, and the first extrusion member in the same groove body abuts against the first elastic member; The second connection block is inserted into the groove, and the inner ends of the two first extrusion members are respectively abutted against the first extrusion grooves on both sides of the second connection block.

6. The fire curtain for escape platform according to claim 1, characterized in that: The locking mechanism is a squeeze locking mechanism; The second locking portion includes a second elastic extrusion component, which is arranged on the moving frame; the first locking portion includes a second extruded member, which is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall; The second elastic extrusion component clamps the second extruded member to fix the fireproof rolling curtain in a closed state.

7. The fire curtain for escape platform according to claim 6, characterized in that: The second elastic extrusion assembly includes a fourth connection block, a second elastic member and a second extrusion member, one end of the second elastic member in the extension direction is connected to the fourth connection block, and the other end of the second elastic member in the extension direction is connected to the second extrusion member; The second extruded member includes a second extrusion groove, and the second extrusion groove is arranged on a side of the frame body facing the second extrusion member; When one end of the second extrusion member away from the second elastic member is plugged into the second extrusion groove, the second elastic member is in a force storage state.

8. The fire curtain for escape platform according to claim 1, characterized in that: The locking mechanism is a plug-in locking mechanism; The second locking portion includes a second plug-in portion, and the second plug-in portion is arranged on the moving frame; the first locking portion includes a first plug-in portion, and the first plug-in portion is arranged on the frame; The first plug-in portion is plugged into the second plug-in component to fix the fireproof rolling curtain in a closed state.

9. The fire curtain for escape platform according to claim 8, characterized in that: The second plug-in portion includes a third connecting block and a first plug-in member, wherein the third connecting block is arranged on the moving frame, and the first plug-in member is arranged on the outer wall of the third connecting block; The first plug-in portion includes a first plug rod, the frame is provided with a plug hole, and the first plug rod is plugged into the plug hole; The first plugging rod is plugged into the first connected component.

10. The fire curtain for escape platform according to claim 1, characterized in that: The locking mechanism is a plug-in locking mechanism; The second locking portion includes a third plug-in portion, and the third plug-in portion is arranged on the moving frame; the first locking portion includes a fourth plug-in portion, and the fourth plug-in portion is arranged on the inner wall of the bottom end of the frame body, or the bottom end of the side wall; The third plug-in portion is plugged into the fourth plug-in component to fix the fireproof rolling curtain in a closed state.

11. The fire curtain for escape platform according to claim 10, characterized in that: The third plug-in portion includes a fourth connection block, a third elastic member and a second plug rod, one end of the third elastic member in the extension direction is connected to the fourth connection block, and the other end of the third elastic member in the extension direction is connected to the second plug rod; The fourth plug-in portion includes a second plug-in component, and the second plug-in component is arranged on a side of the frame body facing the second plug rod; The second plugging rod is plugged into the second connected member.

12. The fire curtain for an escape platform according to any one of claims 1 to 11, characterized in that: The escape platform fire curtain also includes an operating mechanism; The operating mechanism is provided with a heat insulation part; The operating mechanism is arranged on the movable frame or the frame body, and the operating mechanism is connected to the first locking part or the second locking part. The operating mechanism is used to make the first locking part and the second locking part engage and lock or disengage and unlock, and the operating mechanism is also used to open or close the fireproof roller shutter.

13. The fire curtain for escape platform according to claim 12, characterized in that: The operating mechanism is a handle structure; The operating mechanism comprises a handle, and two handles are respectively arranged on the outer walls of both sides of the moving frame.

14. The fire curtain for escape platform according to claim 12, characterized in that: The operating mechanism is a handle structure; The handle structure comprises a handle member, and the handle member is arranged on a movable frame of the first locking part.

15. The fire curtain for escape platform according to claim 1, characterized in that: The fireproof rolling shutter comprises a rolling shutter body and sliding parts arranged on both sides of the rolling shutter body; The inner walls on both sides of the frame are provided with guide parts; The two sliding parts are respectively slidably connected to the guide part on the same side.

16. The fire curtain for escape platform according to claim 15, characterized in that: The rolling mechanism comprises a rolling blind shaft; The rolling curtain shaft is arranged in the accommodating cavity, and the end of the rolling curtain shaft is rotatably connected to the inner wall of the accommodating cavity; The inner end of the fireproof rolling curtain is connected to the outer wall of the rolling curtain shaft, and the fireproof rolling curtain is wound around the outer wall of the rolling curtain shaft.

17. The fire curtain for escape platform according to claim 16, characterized in that: The winding mechanism also includes a clockwork spring; The spring is sleeved on the rolling curtain shaft, the inner end of the spring is connected to the outer wall of the rolling curtain shaft, and the outer end of the spring is connected to the inner wall of the accommodating cavity; The clockwork spring is always in an energy storage state, applying a torsion force to the rolling shutter shaft to rotate the rolling shutter shaft and retract the fireproof rolling shutter; The movable frame is snap-connected with the exit of the frame body.

18. The fire curtain for escape platform according to claim 16, characterized in that: The winding mechanism also includes a rotating member; The rotating member is rotatably connected to the frame, and the inner end of the rotating member extends into the accommodating cavity and is connected to the rolling blind shaft; The rotating member drives the rolling blind shaft to rotate.

19. The fire curtain for escape platform according to claim 16, characterized in that: The outer wall of the rolling curtain shaft is provided with a rolling curtain fixing portion, and the inner end of the fireproof rolling curtain is connected to the rolling curtain fixing portion.

20. An escape platform, characterized in that: It comprises a bearing platform, a fixing frame and the fire curtain of the escape platform according to any one of claims 1 to 19; The fixing frame is arranged in an opening opened on the facade of the building, the bearing platform is arranged in the fixing frame, the escape platform fire curtain is fixedly connected to the fixing frame or the opening, and the escape platform fire curtain is located on the indoor side of the bearing platform.

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