Escape platform one-way stop structure and escape platform

Abstract

The utility model provides an escape platform one-way stop structure and an escape platform, and relates to the technical field of escape platforms, the escape platform one-way stop structure is applied to the escape platform comprising a bearing platform and a fixing frame and comprises a fixing part, a first stop part and a second stop part, the fixing part is arranged on the fixing frame, and the first stop part is arranged on the bearing platform; the first stop part is arranged on the fixing part and provided with a first clamping part, the second stop part is arranged on the bearing platform and provided with a second clamping part, when the bearing platform is opened, the bearing platform drives the second stop part to move in the first direction, the second clamping part is connected with the first clamping part in a sliding mode, and the second clamping part is connected with the second clamping part in a sliding mode. When the bearing platform drives the second stop part to move reversely, the second clamping part is clamped with the first clamping part to prevent the bearing platform from moving reversely, so that the stability of the bearing platform is guaranteed, and the safety of escape personnel is guaranteed.

Description

[0001] The present application claims priority to the Chinese patent application No. 202420117357.7, filed on January 17, 2024, and entitled "Escape platform and slow descent device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of escape platforms, in particular to an escape platform one-way stop structure and an escape platform. BACKGROUND

[0003] The escape platform is installed on a hole opening provided on a building for personnel to escape in an emergency situation, and can quickly evacuate indoor personnel. The escape platform is in a closed state in normal non-emergency situations, and is in a locked state with a frame body installed on the building hole opening. When an emergency situation occurs, it needs to be manually unlocked and opened, which can quickly unlock the escape platform and quickly open it, so that the escape personnel can quickly evacuate.

[0004] The bearing platform and the fixed frame movable connection structure are limited to the bearing platform rotating and opening in a set direction. When high wind pressure weather in nature occurs, under the action of large wind pressure on the surface of the bearing platform, the platform is in a partially open state, and is easily reversed under the action of wind pressure, which affects the opening speed of the bearing platform and wastes the escape time of the escape personnel. CONTENT OF THE INVENTION

[0005] The escape platform one-way stop structure and the escape platform provided by the embodiments of the present application are provided. The fixed part is arranged at the bottom of the fixed frame, the first stop part is arranged on the fixed part, and the second stop part is arranged on the bearing platform. When the bearing platform drives the second stop part to move reversely, the first stop part is clamped with the second stop part to hinder the reverse movement of the bearing platform, so that the bearing platform is quickly opened to save the escape time of the escape personnel. The one-way stop structure provided by the present application solves the problem that the bearing platform is easily reversed under the action of wind pressure in a partially open state, which affects the opening speed of the bearing platform and wastes the escape time of the escape personnel.

[0006] In a first aspect, the embodiments of the present application provide an escape platform one-way stop structure applied to an escape platform including a bearing platform and a fixed frame, including a fixed part, a first stop part and a second stop part.

[0007] The fixed part is arranged on the fixed frame, the bearing platform or the building. The first stop part and the second stop part are arranged on the fixed part and the bearing platform respectively. The first stop part has a first clamping part, and the second stop part has a second clamping part.

[0008] When the bearing platform is opened, the bearing platform drives the first stop part or the second stop part to move in a first direction, and the second clamping part is in sliding connection with the first clamping part; when the bearing platform drives the first stop part or the second stop part to move in a second direction, the second direction is opposite to the first direction, and the second clamping part is clamped with the first clamping part to hinder the movement of the bearing platform in the second direction.

[0009] In an implementable implementation, the second stop part has opposite first and second ends, the first end of the second stop part is rotationally connected with the bearing platform through a first connecting piece, and the second clamping part is arranged at the second end of the second stop part.

[0010] When the bearing platform is opened, the bearing platform drives the first end of the second stop part to move in a first direction, and the second clamping part is in sliding connection with the first clamping part; when the bearing platform drives the first end of the second stop part to move in a second direction, the second clamping part is clamped with the first clamping part to hinder the movement of the bearing platform in the second direction.

[0011] In an implementable implementation, the first clamping part is provided in plurality, and the plurality of first clamping parts are arranged on the first stop part.

[0012] In an implementable implementation, the second stop part is a first pawl, one end of the first pawl is rotationally connected with the bearing platform through the first connecting piece, the other end of the first pawl is provided with a first pointed end, and the first pointed end is the first clamping part.

[0013] The first stop part is a first rack, the first rack is fixedly arranged on the fixed part, the top of the first rack is provided with a plurality of clamping teeth, and the clamping teeth are the second clamping parts.

[0014] When the bearing platform is opened, the bearing platform drives the first pawl to move in a first direction, and the first pointed end is in sliding connection with the clamping teeth; when the bearing platform drives the first pawl to move in a second direction, the first pointed end is clamped with the clamping teeth to hinder the movement of the bearing platform in the second direction.

[0015] In an implementable implementation, the first clamping part is provided in plurality, and the plurality of first clamping parts are arranged on the periphery of the first stop part.

[0016] In an implementable implementation, the second stop part is a first pawl, one end of the first pawl is rotationally connected with the bearing platform through the first connecting piece, the other end of the first pawl is provided with a first pointed end, and the first pointed end is the second clamping part.

[0017] The first stopper is a first ratchet wheel, the first ratchet wheel is fixed on the fixed part, the outer part of the first ratchet wheel is provided with a first ratchet tooth, a plurality of the first ratchet teeth are distributed around the center of the first ratchet wheel, and the first ratchet tooth is the first clamping part;

[0018] When the bearing platform is opened, the bearing platform drives the first pawl to move in a first direction, and the first sharp end is in sliding connection with the first ratchet tooth; when the bearing platform drives the first pawl to move in a second direction, the first sharp end is clamped with the first ratchet tooth to hinder the movement of the bearing platform in the second direction.

[0019] In a possible implementation, the first stopper has opposite third and fourth ends, the third end of the first stopper is rotationally connected to the fixed part through a second connecting piece, and the first clamping part is arranged at the fourth end of the first stopper.

[0020] When the bearing platform is opened, the bearing platform drives the second stopper to move in a first direction, the second clamping part is in sliding connection with the first clamping part, and the fourth end of the first stopper moves in the first direction; when the bearing platform drives the second stopper to move in a second direction, the second clamping part is clamped with the first clamping part to hinder the movement of the bearing platform in the second direction.

[0021] In a possible implementation, the second clamping part is arranged at the peripheral part of the second stopper, and a plurality of the second clamping parts are distributed around the center of the second stopper.

[0022] In a possible implementation, the first stopper is a second pawl, one end of the second pawl is rotationally connected to the fixed part through a third connecting piece, the other end of the second pawl is provided with a second sharp end, and the second sharp end is the first clamping part.

[0023] The second stopper is a second ratchet wheel, the second ratchet wheel is fixed on the bearing platform, the outer part of the second ratchet wheel is provided with a second ratchet tooth, a plurality of the second ratchet teeth are distributed around the center of the second ratchet wheel, and the second ratchet tooth is the second clamping part.

[0024] When the bearing platform is opened, the bearing platform drives the second ratchet wheel to move in a first direction, and the second sharp end is in sliding connection with the second ratchet tooth; when the bearing platform drives the second ratchet wheel to move in a second direction, the second sharp end is clamped with the second ratchet tooth to hinder the movement of the bearing platform in the second direction.

[0025] In a second aspect, the application further provides an escape platform, comprising a bearing platform and a fixed frame.

[0026] The fixed frame is arranged in the opening of the building facade, and the bearing platform is movably connected to the fixed frame.

[0027] When the bearing platform is in the closed state, the bearing platform is clamped in the fixed frame to block the opening.

[0028] When the bearing platform is in the open state, the bearing platform is moved to the outside of the building facade to form a platform for the escape personnel to stay.

[0029] The fixed frame and the bearing platform are realized one-way rotation through the one-way stop structure of the escape platform.

[0030] The one-way stop structure of the escape platform and the escape platform provided by the embodiment of the application, the one-way stop structure comprises a fixed part, a first stop part and a second stop part, the fixed part is arranged at the bottom of the fixed frame, the first stop part and the second stop part are arranged on the fixed part and the bearing platform respectively, the first stop part has a first clamping part, the second stop part has a second clamping part, when the bearing platform is opened, the bearing platform drives the second stop part to move in the first direction, the second clamping part is slidably connected with the first clamping part, when the bearing platform drives the second stop part to move reversely, the second clamping part is clamped with the first clamping part to hinder the reverse movement of the bearing platform, so as to ensure the stability of the bearing platform and the safety of the escape personnel. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The first schematic view of the escape platform provided by the embodiment of the application;

[0032] Figure 2 The second schematic view of the escape platform provided by the embodiment of the application;

[0033] Figure 3 The third schematic view of the escape platform provided by the embodiment of the application;

[0034] Figure 4 The fourth schematic view of the escape platform provided by the embodiment of the application;

[0035] Figure 5 The fifth schematic view of the escape platform provided by the embodiment of the application;

[0036] Figure 6 The sixth schematic view of the escape platform provided by the embodiment of the application;

[0037] Figure 7 The seventh schematic view of the escape platform provided by the embodiment of the application;

[0038] Figure 8 Structure diagram of one-way stop structure of escape platform provided in the present application;

[0039] Figure 9 Structure diagram of one-way stop structure;

[0040] Figure 10 Structure diagram of Figure 9 Enlarged view of A in the middle;

[0041] Figure 11 Structure diagram of another one-way stop structure;

[0042] Figure 12 Structure diagram of Figure 11 Enlarged view of B in the middle;

[0043] Figure 13 Structure diagram of still another one-way stop structure;

[0044] Figure 14 Structure diagram of Figure 13 Enlarged view of C in the middle.

[0045] Explanation of reference signs:

[0046] 1-fixed frame; 11-side frame; 111-first accommodating space; 112-second accommodating space; 12-second sealing body; 13-second locking part; 131-hinge structure; 2-hand switch; 21-protection structure; 3-recovery device; 4-bearing platform; 41-first sealing body; 42-first locking part; 5-cable-stayed part; 6-guardrail; 7-slow descent device; 71-slow descent cable; 72-connection end; 8-connection part; 9-fireproof heat insulation curtain;

[0047] 410-fixed part; 420-first stop part; 430-second stop part; 440-first connecting piece; 450-second connecting piece; 460-third connecting piece; 421-first clamping part; 422-third end; 423-fourth end; 431-second clamping part; 432-first end; 433-second end. DETAILED DESCRIPTION

[0048] In order to make the personnel in the technical field better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.

[0049] The escape platform is arranged on each floor of a building for forming a platform structure on the surface of the outer wall of the building when an emergency occurs. The existing building is usually provided with a flat open, sliding, upper suspension and lower suspension window for lighting and ventilation, but the opening sash of the window is small and the opening area is small, and the platform cannot be formed after opening, which greatly reduces the escape probability of the trapped person.

[0050] The escape platform provided by the application can be arranged at a position convenient for escaping on each floor of a building, and the platform can be used as a part of the building when closed, and can be used for lighting, ventilation and smoke exhaust of the window; when opened, the platform can form a platform on the outer facade of the building, which has a certain bearing capacity, and the escape personnel can gather on the platform to wait for rescue or use a slow descent device to descend to a safe position to escape from danger.

[0051] As Figures 1 to 7 The escape platform provided by the embodiment of the application is installed on the opening of the building, and the position of the escape platform needs to be ensured to meet the facade effect requirements of the building. The escape platform comprises a bearing platform 4 and a fixed frame 1, the fixed frame 1 is arranged on the opening of the facade of the building, the bearing platform 4 is movably connected with the fixed frame 1, a manual switch 2 is arranged on one side of the fixed frame 1 in the room, the manual switch 2 is provided with a protection structure 21, the manual switch 2 is sealed in the protection structure 21 under normal circumstances to avoid being accidentally touched, and when used, the protection structure 21 is opened or removed, and then the manual switch 2 can be operated.

[0052] A first sealing body 41 is arranged in the four surrounding frames of the bearing platform 4, the first sealing body 41 is extruded and sealed with a second sealing body 12 arranged on the inner side of the fixed frame 1 when the bearing platform 4 is in a closed state, a guardrail 6 is arranged on the bearing platform 4, the guardrail 6 is arranged at the edge of the bearing platform 4, and the guardrail 6 is foldably hidden in a first containing space 111 of two side frames 11 of the fixed frame 1 and a second containing space 112 of an upper frame of the fixed frame.

[0053] A cable-stayed component 5 is arranged between the two side frames of the bearing platform 4 and the two side frames 11 of the fixed frame 1, and the cable-stayed component 5 is hidden in the first containing space 111 of the two side frames 11 of the fixed frame 1; a first locking part 42 is arranged on the frame of the bearing platform 4, and the first locking part 42 forms a locking state with a second locking part 13 arranged on the frame of the fixed frame.

[0054] When the bearing platform 4 is opened by the manual switch 2, the bearing platform 4 is connected with the lower frame of the fixed frame 1, so that the bearing platform 4 is rotated and opened to a set position outside the room, and the rotation is realized by a hinged structure 131. When the bearing platform 4 is in an open state, the personnel need to gather on the bearing platform 4 when escaping, and the bearing platform 4 should have a certain bearing capacity.

[0055] In order to ensure the safety of the escape personnel, the bearing platform 4 forms a cantilever structure with the wall after being opened. The higher the escape opening is set, the longer the cantilever of the cantilever structure is, and the less favorable the bearing capacity of the bearing platform 4 is. Therefore, after the bearing platform 4 is opened, the inclined pulling components 5 connected with the bearing platform 4 are arranged on both sides of the fixed frame 1 to enhance the bearing strength of the bearing platform 4.

[0056] The inclined pulling components 5 can be a rod structure and are provided with a limiting device. When the bearing platform 4 returns to the closed state, the inclined pulling components 5 are enabled to run in a specified direction and are located in the first containing space of the bearing platform 4 or the fixed frame 1. The inclined pulling components 5 can also be telescopic components. When the bearing platform 4 is opened, the telescopic components are stretched or contracted to a set position in a specified direction. When the bearing platform 4 returns to the closed state, the telescopic components are located in the containing space of the bearing platform 4 or the fixed frame 1. The inclined pulling components 5 can also be rope or chain components. When the bearing platform 4 is in the opened state, the rope or chain components are stretched to a set position and stop running. One end of the rope or chain components can be provided with a counterweight structure or a friction structure to enable the bearing platform 4 to be slowly opened.

[0057] At this time, the bearing platform 4 has the escape function. However, in order to ensure that the escape personnel on the bearing platform 4 do not fall, the side of the bearing platform 4 not connected with the wall can be provided with a guardrail 6 when the bearing platform 4 is in the opened state. When the bearing platform 4 is opened, the guardrail 6 is automatically raised to improve the safety of the bearing platform 4. A spring pneumatic telescopic device is arranged between the bearing platform 4 and the guardrail 6. Under the action of the pulling force or the pushing force of the spring pneumatic telescopic device, the guardrail 6 is raised to a set height and is locked during the opening process of the bearing platform 4. An escape personnel uses a gap arranged at the position of the guardrail of the bearing platform. After wearing the escape equipment, the escape personnel safely escapes through the gap without climbing over the guardrail to escape. The gap can be set in number and position according to the use. A handrail is arranged at the position of the gap. Before using the gap, the handrail is manually opened to escape.

[0058] The fixed frame 1 is further provided with a connecting part 8 of the backpack type slow descent device. The escape personnel wear the escape backpack, the slow descent rope of the backpack type slow descent device is connected with the connecting part 8, and the lifting of the backpack type slow descent device is realized through the slow descent rope. Specifically, after the escape personnel wear the backpack type slow descent device, the connecting end of the slow descent rope is connected with the connecting end of the connecting part 8. In the actual use process, the backpack type slow descent device realizes slow descent under a certain gravity through the friction part. The slow descent rope is stored in the winch connected with the friction part. The whole component is installed in the backpack. The connecting end of the slow descent rope extends out of the backpack and is connected with the connecting part 8 provided on the fixed frame 1. After the escape personnel fix the backpack type slow descent device on the body through the safety belt, the escape can be realized. The friction of the friction part can be adjusted. The adjustment of the friction can change the descending speed. The backpack type slow descent device can be provided with a descending stopping device. The descending stopping device can be manually controlled. The descending stopping device can extrude the friction part through the extrusion structure to increase the friction. When the friction is greater than the gravity, the descending is stopped. The descending stopping device can also extrude the slow descent rope through the extrusion structure to increase the friction. When the friction is greater than the gravity, the descending is stopped.

[0059] The escape platform is further provided with a recovery device 3. The recovery device 3 is arranged on the fixed frame 1. After the bearing platform 4 is opened to complete the escape task, the functions and components of the bearing platform 4 are checked. In the case that the functions and components of the bearing platform 4 are not damaged, the recovery device 3 can be used to manually recover the bearing platform 4 to the closed state from the indoor side. The locking is realized through the locking structure arranged on the fixed frame 1 and the bearing platform 4. After the bearing platform 4 is recovered to the initial state, the bearing platform 4 can still be repeatedly used.

[0060] Specifically, a rope type component can be used to connect the recovery device 3 and the bearing platform 4. One end of the rope type component is connected with the bearing platform 4, and the other end is connected with the rope wheel of the recovery device 3. The rope wheel is controlled through the one-way movement principle of the pawl. The rope wheel can be rotated by using a tool corresponding to the pawl, so that the rope type component is wound on the rope wheel, and the bearing platform 4 is pulled to the initial state. A chain type component can also be used. The chain is matched with the sprocket. The chain is retracted by rotating the sprocket. The retracted chain enters the accommodation space, pulls the bearing platform 4 to the initial state, and realizes locking. A screw structure can also be used to realize recovery. The nut connected with the screw rod moves linearly by rotating the screw rod. The nut rope type component, chain component or connecting rod component is linked with the escape platform. The nut moves in the set direction to recover the escape platform to the initial state and lock.

[0061] The escape platform can also be provided with a slow descent device 7, and the escape is realized through the slow descent device 7. When in use, the escape personnel need to wear an escape safety harness, and after wearing the safety harness, the safety harness is connected to the slow descent cable 71 of the slow descent device 7, and the escape personnel can be slowly descended to a safe position or the ground to escape; the slow descent device 7 is arranged on the indoor side wall, and the number thereof can be multiple, and the connection end for connecting the safety harness worn by the escape personnel is arranged to protrude outside the room, so that the escape personnel can quickly escape after the safety harness is connected to the connection end of the slow descent device.

[0062] The slow descent device 7 can also be arranged on the fixed frame 1, and the number thereof can be multiple, and the connection end 72 of the slow descent device 7 arranged on the fixed frame 1 also protrudes outside the room, so as to facilitate the escape personnel to quickly escape.

[0063] The slow descent device 7 can also be arranged separately from the bearing platform 4, for example, a first connecting part and a third locking part connected with the slow descent device 7 are arranged on the fixed frame 1 or the bearing platform 4, and the number of the first connecting part and the third locking part is at least one. After the bearing platform 4 is opened, the escape personnel fix the slow descent device 7 to the first connecting part, and lock through the third locking part. After the escape personnel wear the safety harness, the safety harness is connected with the connection end 72 of the slow descent device. It should be noted that the number of the above-mentioned first connecting part and the third locking part is multiple. In actual use, it is not necessary to use multiple first connecting parts and third locking parts at the same time to realize the escape function, but one escape personnel only needs to use a pair of first connecting part and third locking part. The multiple first connecting parts and third locking parts are arranged on one side to facilitate the escape personnel to fix the safety harness, and on the other side to facilitate multiple escape personnel to escape at the same time.

[0064] The slow descent device 7 can also be arranged as a reciprocating 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 escape personnel first uses one of the second connecting parts to descend to a safe position or the ground, and then takes off the escape harness. At this time, the second escape personnel on the bearing platform 4 can use the other second connecting part to descend. When the second escape personnel descends, the connection end 72 used by the first escape personnel with the escape harness is recycled to the initial position on the bearing platform 4, and can be used again by the escape personnel. In this way, in the subsequent escape process of the escape personnel, repeated fixing work is not needed, and the escape personnel only need to wear the escape harness to quickly escape from the dangerous environment.

[0065] The escape platform can also be provided with a fireproof heat insulation curtain 9 arranged on the indoor side of the upper edge of the fixed frame 1, and the guide part of the fireproof heat insulation curtain 9 is arranged on the indoor side of the side edge 11 of the fixed frame 1. After the escape personnel reach the bearing platform 4, the fireproof heat insulation curtain 9 can be manually pulled down, so as to form a partition seal between the bearing platform 4 and the indoor side of the building. At this time, if there are still personnel who have not escaped to the bearing platform 4 in the room, the fireproof heat insulation curtain 9 can also be opened from the indoor side. After reaching the bearing platform 4, the fireproof heat insulation curtain 9 is closed again to form a partition layer, so that the space of the bearing platform 4 is safer, so as to gain more escape time.

[0066] The fireproof heat insulation curtain 9 is rotated and contracted under the shaft of the accommodating space by the spring force. When the downward pulling force is greater than the spring force, the heat insulation curtain runs downward along the two side guide parts to a set position. The set position is provided with a locking structure. The locking structure can be opened from the indoor side and the outdoor side, so that personnel who have not escaped to the escape platform can continue to hide and escape.

[0067] It should be noted that the slow descent device 7 provided by the embodiment of the present application can also be used alone and is not limited to the building scene. It can also be used in other scenes with height difference, such as tower cranes, mountains, bridges, mines or ships.

[0068] Based on the foregoing technical solutions, the active connection structure of the bearing platform 4 and the fixed frame 1 is limited to the bearing platform 4 being rotated and opened in a set direction. When the bearing platform 4 is in a partially opened state under the action of a large wind pressure on the surface of the bearing platform 4 in a high wind pressure weather in nature, the bearing platform 4 is easily reversely operated under the action of the wind pressure, which affects the opening speed of the bearing platform and wastes the escape time of the escape personnel. In order to ensure that the bearing platform 4 is quickly and stably opened, the present application provides a one-way stop structure to solve the foregoing problems.

[0069] Referring to Figures 8-14 The embodiment of the present application provides a one-way stop structure of an escape platform, which is applied to an escape platform including a bearing platform 4 and a fixed frame 1, and includes a fixed part 410, a first stop part 420 and a second stop part 430.

[0070] The fixed part 410 is arranged on the fixed frame bearing platform or the building, and the fixed part 410 does not contact the bearing platform 4. The first stop part 420 and the second stop part 430 are arranged on the fixed part 410 and the bearing platform 4 respectively. The first stop part 420 has a first clamping part 421, which can be a clamping groove or a clamping tooth structure. The second stop part 430 has a second clamping part 431, which is a clamping hook or a clamping block structure matched with the first clamping part 421.

[0071] When the bearing platform 4 is opened, the bearing platform 4 drives the first stop portion 420 or the second stop portion 430 to move in the first direction, and the second clamping portion 431 is in sliding connection with the first clamping portion 421; when the bearing platform 4 drives the first stop portion 420 or the second stop portion 430 to move in the second direction, the second direction is opposite to the first direction, the second clamping portion 431 is in clamping connection with the first clamping portion 421, so as to hinder the movement of the bearing platform 4 in the second direction, that is, hinder the reverse movement of the bearing platform 4, thereby ensuring the quick opening of the bearing platform 4 and gaining the escape time for the escape personnel.

[0072] When the bearing platform 4 is closed, the first stop portion 420 and the second stop portion 430 are manually separated, so that the bearing platform 4 can be normally closed.

[0073] Referring to Figures 9-12 In some embodiments, the second stop portion 430 can be a strip structure, the second stop portion 430 has opposite first and second ends 432 and 433, the first end 432 of the second stop portion 430 is rotationally connected with the bearing platform 4 through a first connecting piece 440, the connecting piece 440 can be a rotating shaft, one end of the rotating shaft is fixedly or rotationally connected with the bearing platform 4, and the other end of the rotating shaft is rotationally or fixedly connected with the first end 432 of the second stop portion 430, so that the second stop portion 430 can rotate relative to the bearing platform 4, and the second clamping portion 431 is arranged at the second end 433 of the second stop portion 430, that is, the outer end of the second stop portion 430 is the second clamping portion 431.

[0074] As shown in Figure 10 and Figure 12 When the bearing platform 4 is opened to the left, the bearing platform 4 drives the first end 432 of the second stop portion 430 to move in the first direction, the second end 433 of the second stop portion 430 moves downward relative to the bearing platform 4, the second stop portion 430 moves to the left relative to the first stop portion 420, and the second clamping portion 431 is in sliding connection with the first clamping portion 421; when the bearing platform 4 drives the first end 432 of the second stop portion 430 to move in the second direction, that is, when the bearing platform 4 drives the second stop portion 430 to be rotated to the right, the right end of the second stop portion 430 is the second clamping portion 431, the second clamping portion 431 is in clamping connection with the first clamping portion 421, so as to hinder the movement of the bearing platform 4 in the second direction, and the bearing platform 4 cannot be reversely rotated, thereby ensuring the quick opening of the bearing platform 4 and gaining the escape time for the escape personnel.

[0075] Referring to Figure 10 In some embodiments, a plurality of first clamping portions 421 are arranged on the first stop portion 420.

[0076] Further, the second stop portion 430 is a first pawl, a left end of the first pawl is rotationally connected with the bearing platform 4 through a first connecting piece 440, and a right end of the first pawl is provided with a first pointed end, and the first pointed end is a first clamping portion 421;

[0077] The first stop portion 420 is a first gear rack, the first gear rack is fixedly arranged on the fixed portion 410, and a top of the first gear rack is provided with a plurality of clamping teeth, and the clamping teeth are second clamping portions 431;

[0078] When the bearing platform 4 is opened, the bearing platform 4 drives the first pawl to move in a first direction, and the first pointed end is in sliding connection with the clamping teeth; when the bearing platform 4 drives the first pawl to move in a second direction, the first pointed end is clamped with the clamping teeth, so as to hinder the bearing platform 4 from moving in the second direction, hinder the bearing platform 4 from rotating reversely to the right, ensure the bearing platform 4 to be quickly opened, and gain escape time for the escape personnel.

[0079] Referring to Figure 12 In some embodiments, the first clamping portion 421 is provided with a plurality of first clamping portions 421, and the first clamping portions 421 are arranged on a circumferential portion of the first stop portion 420.

[0080] Further, the second stop portion 430 is a first pawl, a left end of the first pawl is rotationally connected with the bearing platform 4 through a first connecting piece 440, and a right end of the first pawl is provided with a first pointed end, and the first pointed end is a first clamping portion 421;

[0081] The first stop portion 420 is a first gear rack, the first gear rack is fixedly arranged on the fixed portion 410, and a top of the first gear rack is provided with a plurality of clamping teeth, and the clamping teeth are second clamping portions 431;

[0082] When the bearing platform 4 is opened, the bearing platform 4 drives the first pawl to move in a first direction, and the first pointed end is in sliding connection with the clamping teeth; when the bearing platform 4 drives the first pawl to move in a second direction, the first pointed end is clamped with the clamping teeth, so as to hinder the bearing platform 4 from moving in the second direction, hinder the bearing platform 4 from rotating reversely to the right, ensure the bearing platform 4 to be quickly opened, and gain escape time for the escape personnel.

[0083] Referring to Figure 13 and Figure 14As shown, in some embodiments, the first stop portion 420 is a strip structure, the first stop portion 420 has opposite third and fourth ends 422 and 423, the third end 422 of the first stop portion 420 is rotationally connected with the fixed portion 410 through a second connecting member 450, the second connecting member 450 can be a rotating shaft, one end of the rotating shaft is fixedly or rotationally connected with the fixed frame 1, the other end of the rotating shaft is rotationally or fixedly connected with the third end 422 of the first stop portion 420, so that the first stop portion 420 can rotate relative to the fixed portion 410, the first clamping portion 421 is arranged at the fourth end 423 of the first stop portion 420;

[0084] When the bearing platform 4 is opened, the bearing platform 4 drives the second stop portion 430 to move, the first clamping portion 421 of the first stop portion 420 is located at the middle or upper part of the second stop portion 430, the second clamping portion 431 is slidably connected with the first clamping portion 421, and the fourth end 423 of the first stop portion 420 moves to the lower left; when the bearing platform 4 drives the second stop portion 430 to move in the second direction, the second clamping portion 431 is clamped with the first clamping portion 421, so as to hinder the movement of the bearing platform 4 in the second direction, hinder the reverse rotation of the bearing platform 4 to the right, and ensure the rapid opening of the bearing platform 4, so as to gain time for the escape personnel.

[0085] Referring to Figure 14 As shown, in some embodiments, the second clamping portion 431 is arranged at the peripheral portion of the second stop portion 430, and a plurality of second clamping portions 431 are distributed around the center of the second stop portion 430.

[0086] Further, in some embodiments, the first stop portion 420 is a second pawl, the second pawl is a strip structure, one end of the second pawl is rotationally connected with the fixed portion 410 through a third connecting member 460, and the other end of the second pawl is provided with a second sharp end, the second sharp end is the first clamping portion 421;

[0087] The second stop portion 430 is a second ratchet wheel, the second ratchet wheel is fixedly arranged on the bearing platform 4, the outer portion of the second ratchet wheel is provided with second ratchet teeth, a plurality of second ratchet teeth are distributed around the center of the second ratchet wheel, and the second ratchet teeth are the second clamping portions 431;

[0088] When the bearing platform 4 is opened, the bearing platform 4 drives the second ratchet wheel to move to the left, the second sharp end is slidably connected with the second ratchet teeth, and the second sharp end slides with the upper region of the second ratchet teeth; when the bearing platform 4 drives the second ratchet wheel to move to the right, the second sharp end is clamped with the second ratchet teeth, so as to hinder the movement of the bearing platform 4 in the second direction, hinder the reverse rotation of the bearing platform 4 to the right, and ensure the rapid opening of the bearing platform 4, so as to gain time for the escape personnel.

[0089] The application also provides an escape platform, which comprises a bearing platform 4 and a fixed frame 1;

[0090] The fixed frame 1 is arranged in the opening of the building facade, and the bearing platform 4 is movably connected to the fixed frame;

[0091] When the bearing platform 4 is in the closed state, the bearing platform 4 is clamped in the fixed frame to block the opening;

[0092] When the bearing platform 4 is in the open state, the bearing platform 4 is moved to the outside of the building facade to form a platform for the escape personnel to stay;

[0093] The fixed frame 1 and the bearing platform 4 are realized one-way rotation through the one-way stop structure of the escape platform.

[0094] It is easy to understand that, on the basis of the several embodiments provided in the present application, the skilled in the art can combine, split, recombine, etc. to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0095] The above specific embodiments have further detailed the purposes, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above is only a specific implementation of the embodiments of the present application, and is not used to limit the protection scope of the embodiments of the present application. Any modification, equivalent replacement, improvement, 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. A one-way stop structure for an escape platform, applied to an escape platform including a support platform and a fixed frame, characterized in that: include; A fixing part is provided on the fixing frame, the supporting platform, or the building; A first stop and a second stop are provided to cooperate with each other. The first stop and the second stop are respectively disposed on the fixed part and the bearing platform. The first stop has a first locking part and the second stop has a second locking part. When the carrying platform is opened, the carrying platform drives the first stop or the second stop to move in the first direction, and the second locking part is slidably connected to the first locking part; when the carrying platform drives the first stop or the second stop to move in the second direction, the second direction is opposite to the first direction, and the second locking part is locked to the first locking part to prevent the carrying platform from moving in the second direction.

2. The one-way stop structure of the escape platform according to claim 1, characterized in that: The second stop has a first end and a second end opposite to each other. The first end of the second stop is rotatably connected to the bearing platform through a first connector, and the second snap-fit ​​part is disposed at the second end of the second stop. When the carrying platform is opened, the carrying platform drives the first end of the second stop to move in the first direction, and the second locking part is slidably connected with the first locking part; when the carrying platform drives the first end of the second stop to move in the second direction, the second locking part is locked with the first locking part to prevent the carrying platform from moving in the second direction.

3. The one-way stop structure of the escape platform according to claim 2, characterized in that: The first locking part is provided in multiple ways, and all the first locking parts are provided on the first stop part.

4. The one-way stop structure of the escape platform according to claim 3, characterized in that: The second stop is a first pawl. One end of the first pawl is rotatably connected to the bearing platform through the first connector. The other end of the first pawl is provided with a first tip, which is the first locking part. The first stop is a first rack, which is fixed on the fixed part. The top of the first rack is provided with a plurality of locking teeth, which are the second locking parts. When the carrying platform is opened, the carrying platform drives the first pawl to move in the first direction, and the first tip is slidably connected with the locking tooth; when the carrying platform drives the first pawl to move in the second direction, the first tip is engaged with the locking tooth to prevent the carrying platform from moving in the second direction.

5. The one-way stop structure of the escape platform according to claim 2, characterized in that: The first snap-fit ​​portion is provided in multiple ways, and all of the first snap-fit ​​portions are disposed around the periphery of the first stop portion.

6. The one-way stop structure of the escape platform according to claim 5, characterized in that: The second stop is a first pawl. One end of the first pawl is rotatably connected to the bearing platform through the first connector. The other end of the first pawl is provided with a first tip, which is the second locking part. The first stop is a first ratchet, which is fixed on the fixed part. The outside of the first ratchet is provided with first ratchet teeth, and a plurality of first ratchet teeth are distributed around the center of the first ratchet. The first ratchet teeth are the first locking part. When the carrying platform is activated, the carrying platform drives the first pawl to move in the first direction, and the first tip slides in connection with the first ratchet tooth; when the carrying platform drives the first pawl to move in the second direction, the first tip engages with the first ratchet tooth to prevent the carrying platform from moving in the second direction.

7. The one-way stop structure of the escape platform according to claim 1, characterized in that: The first stop portion has a third end and a fourth end opposite to each other. The third end of the first stop portion is rotatably connected to the fixed portion through a second connector. The first snap-fit ​​portion is disposed at the fourth end of the first stop portion. When the carrying platform is opened, the carrying platform drives the second stop to move in the first direction, the second locking part is slidably connected with the first locking part, and the fourth end of the first stop moves in the first direction; when the carrying platform drives the second stop to move in the second direction, the second locking part locks with the first locking part to prevent the carrying platform from moving in the second direction.

8. The one-way stop structure of the escape platform according to claim 7, characterized in that: The second engaging portion is disposed on the periphery of the second stop portion, and a plurality of the second engaging portions are distributed around the center of the second stop portion.

9. The one-way stop structure of the escape platform according to claim 8, characterized in that: The first stop is a second pawl. One end of the second pawl is rotatably connected to the fixed part through a third connector. The other end of the second pawl is provided with a second tip, which is the first snap-fit ​​part. The second stop is a second ratchet, which is fixed on the bearing platform. The outside of the second ratchet is provided with second ratchet teeth, and a plurality of second ratchet teeth are distributed around the center of the second ratchet. The second ratchet teeth are the second locking part. When the carrying platform is opened, the carrying platform drives the second ratchet to move in the first direction, and the second tip slides in connection with the second ratchet tooth; when the carrying platform drives the second ratchet to move in the second direction, the second tip engages with the second ratchet tooth to prevent the carrying platform from moving in the second direction.

10. An escape platform, characterized in that: Includes the support platform and the fixed frame; The fixed frame is installed in an opening in the building facade, and the supporting platform is movably connected to the fixed frame; When the support platform is in the closed state, the support platform is engaged within the fixed frame to seal the opening; When the support platform is in the open state, it moves to the outside of the building facade to form a platform for evacuees to stay. The fixed frame and the supporting platform achieve unidirectional rotation through the unidirectional stop structure of the escape platform as described in any one of claims 1-9.

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