Centrifugal slow descent device and escape platform

Abstract

The utility model provides a centrifugal slow descending device and an escape platform, and relates to the technical field of escape platforms, the centrifugal slow descending device comprises a fixing part, a rotating shaft, an inhaul cable assembly and a slow release assembly, the fixing part is arranged on a bearing platform, a fixing frame or a building vertical face, and the centrifugal slow descending device is in a fixed state. A safe hanging point or a supporting object does not need to be found indoors, so that the use is convenient; during escape, a user descends to escape through the inhaul cable, in the descending process, the inhaul cable assembly drives the rotating shaft, the centrifugal guide part and the second friction part to do first rotating motion, the centrifugal moving part rotates around the rotating axis of the centrifugal guide part, and under the limiting effect of the centrifugal guide part, component force of the centrifugal moving part faces the second friction part; the centrifugal moving part abuts against the second friction part, so that the friction surface of the second friction part is in dynamic friction with the friction surface of the first friction part, the descending speed is reduced, escape personnel slowly descend, and safe descending escape is achieved.

Description

[0001] The present application claims priority to the Chinese patent application No. 202420117357.7, filed on January 17, 2024, and entitled "A kind of 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 a centrifugal slow descent device and an escape platform. BACKGROUND

[0003] When a high-rise building is in danger, the people inside the building often cannot escape quickly, especially in the event of a fire, etc. The elevators inside the building cannot be used or are not suitable for use, and the speed and capacity of the safe passage (stairs) are weak, greatly delaying the escape of personnel and easily causing serious safety hazards.

[0004] Existing high-rise escape products basically require personnel to find a safe hanging point or support in the room when danger occurs. However, it is not easy to find or impossible to find a safe hanging point or support in the room, and some escape products are heavy and difficult to wear, and the descent speed is difficult to control, making it difficult to achieve safe and rapid escape. CONTENT OF THE INVENTION

[0005] The centrifugal slow descent device and the escape platform provided by the embodiments of the present application are fixed to the escape platform, the fixed frame or the facade of the building. The user descends and escapes by pulling the cable. In the descending process, the cable drives the rotating shaft, the centrifugal guide and the second friction piece to make a first rotating motion. The centrifugal motion piece rotates around the rotating axis of the centrifugal guide. Under the limiting action of the centrifugal guide, the component force of the centrifugal motion piece is directed towards the second friction piece. The centrifugal motion piece abuts against the second friction piece to make the friction surface of the second friction piece dynamically rub against the friction surface of the first friction piece, thereby reducing the descending speed, allowing the escape personnel to slow down, and achieving safe and rapid escape. The present application solves the problem that the existing high-rise escape products require personnel to find a safe hanging point or support in the room when used, which is inconvenient and difficult to achieve safe and rapid escape.

[0006] In a first aspect, the embodiments of the present application provide a centrifugal slow descent device applied to an escape platform including a bearing platform and a fixed frame, including a fixed part, a rotating shaft, a cable assembly, and a slow release assembly.

[0007] The fixed part is arranged on the bearing platform, or the fixed frame, or the building facade, the rotating shaft is rotationally connected with the fixed part, the cable assembly is arranged on the rotating shaft, the cable assembly is connected with the rotating shaft, the cable assembly drives the rotating shaft to make a first rotational motion, the slow-release assembly is arranged between the fixed part and the rotating shaft, and the slow-release assembly is used for applying a reverse force to the rotating shaft to resist the first rotational motion.

[0008] The slow-release assembly comprises:

[0009] A centrifugal guide connected with the rotating shaft;

[0010] A centrifugal motion piece in sliding connection with the centrifugal guide;

[0011] A first friction piece fixed to the fixed part;

[0012] A second friction piece arranged between the centrifugal guide and the first friction piece and connected with the rotating shaft or the centrifugal guide or the centrifugal motion piece, and friction surfaces of the first friction piece and the second friction piece are oppositely arranged;

[0013] The centrifugal motion piece is configured to: when an escapee descends through the cable assembly, the cable assembly drives the rotating shaft, the centrifugal guide and the second friction piece to make a first rotational motion, the centrifugal motion piece rotates around an axis of rotation of the centrifugal guide, under the limiting action of the centrifugal guide, a component force of the centrifugal motion piece is directed towards the second friction piece, the centrifugal motion piece abuts against the second friction piece, so that the friction surface of the second friction piece dynamically rubs against the friction surface of the first friction piece.

[0014] In a possible implementation, the centrifugal guide comprises a guide part, an open end of the guide part is directed towards the second friction piece, a guide limiting piece is arranged on the rotating shaft or the centrifugal guide, and the guide limiting piece is connected with the second friction piece, so that the rotating shaft or the centrifugal guide drives the second friction piece to move;

[0015] The centrifugal motion piece is an extrusion block, and a plurality of extrusion blocks are in sliding connection with an inner wall of the centrifugal guide.

[0016] When the centrifugal guide and the second friction piece move with the rotating shaft, the extrusion blocks make a centrifugal motion in the centrifugal guide, the extrusion blocks apply a pushing force to the second friction piece in the direction of the first friction piece, so that the second friction piece dynamically rubs against the first friction piece.

[0017] In an implementation, the guide limiting piece comprises a first limiting part, which is fixed to the outer wall of the rotating shaft or the inner wall of the centrifugal guide piece, and the extending direction of the first limiting part is parallel to the axis of the rotating shaft.

[0018] The second friction piece is provided with a second limiting part, and the first limiting part and the second limiting part are clamped together.

[0019] In an implementation, the centrifugal guide piece comprises a plurality of inclined rods, one end of the inclined rod is connected to the rotating shaft, and the other end of the inclined rod extends to the side of the second friction piece.

[0020] The centrifugal moving piece is sleeved with the inclined rod, and the outer end of the centrifugal moving piece is slidingly connected to the second friction piece.

[0021] In an implementation, the slow-release assembly further comprises a first elastic piece.

[0022] One end of the extending direction of the first elastic piece is connected to the inclined rod or the rotating shaft, and the other end of the extending direction of the first elastic piece is connected to the centrifugal moving piece.

[0023] The first elastic piece is always in a compressed state, so that the second friction piece is in close contact with the first friction piece.

[0024] In an implementation, the outer wall of the second friction piece is provided with a third limiting part, and the outer end of the centrifugal moving piece is provided with a fourth limiting part.

[0025] The outer wall of the fourth limiting part is slidingly connected to the inner wall of the third limiting part.

[0026] In an implementation, the first friction piece is a ring structure, and the first friction piece is sleeved with the rotating shaft.

[0027] The centrifugal guide piece comprises guide rods, a plurality of guide rods are located in the first friction piece, one end of the guide rod is connected to the rotating shaft, and the other end of the guide rod extends to the first friction piece.

[0028] The centrifugal moving piece is sleeved with the guide rod, the second friction piece is arranged on the centrifugal moving piece, and the second friction piece is slidingly connected to the first friction piece.

[0029] In an implementation, the slow-release assembly further comprises a second elastic piece.

[0030] One end of the extending direction of the second elastic piece is connected to the rotating shaft or the guide rod, and the other end of the extending direction of the second elastic piece is connected to the centrifugal moving piece.

[0031] The second elastic member is always in a compressed state, and exerts an elastic force on the centrifugal moving member towards the second friction member, so that the outer wall of the centrifugal moving member abuts against the inner wall of the second friction member.

[0032] In an available implementation, the cable assembly comprises a cable and a rotating disc;

[0033] The rotating disc is sleeved with the rotating shaft and fixedly connected with the rotating shaft, and the cable is wound on the rotating disc;

[0034] When the escape personnel descend through the cable, the cable drives the rotating disc and the rotating shaft to perform the first rotating motion.

[0035] In an available implementation, the centrifugal slow descending device further comprises a slow release mechanism, and the slow release mechanism comprises:

[0036] A friction plate sleeved outside the rotating shaft and fixed on the fixed part;

[0037] A moving member arranged on the rotating shaft;

[0038] A friction disc slidingly sleeved outside the rotating shaft, and the friction disc is located between the friction plate and the moving member;

[0039] A third elastic member arranged between the moving member and the friction disc, and two ends of the third elastic member in the extension direction are respectively in abutment with the moving member and the friction disc;

[0040] The third elastic member is always in a compressed state, and the friction disc abuts against the friction plate.

[0041] In a second aspect, the application provides an escape platform, comprising a bearing platform and a fixed frame;

[0042] The fixed frame is arranged in an opening formed in the facade of a building, and the bearing platform is movably connected with the fixed frame;

[0043] When the bearing platform is in a closed state, the bearing platform is clamped in the fixed frame to block the opening;

[0044] When the bearing platform is in an open state, the bearing platform is moved to the outside of the facade of the building to form a platform for the escape personnel to stay;

[0045] Further comprising the centrifugal slow descending device described above;

[0046] The fixed part is fixedly arranged on the fixed frame or a wall at the position of the opening.

[0047] The centrifugal slow descending device and the escape platform provided by the embodiment of the application, the centrifugal slow descending device comprises a fixing part, a rotating shaft, a cable assembly and a slow release assembly, the fixing part is arranged on a bearing platform, a fixed frame or a building facade, the centrifugal slow descending device is in a fixed state, and when the centrifugal slow descending device is used, it is not necessary to find a safe hanging point or a support in a room, and the centrifugal slow descending device is convenient to use;

[0048] When escaping, a user descends and escapes through the cable, in the descending process, the cable assembly drives the rotating shaft, the centrifugal guide and the second friction piece to make a first rotating motion, the centrifugal motion piece rotates around the rotating shaft of the centrifugal guide, under the limiting action of the centrifugal guide, the component force of the centrifugal motion piece is directed to the second friction piece, the centrifugal motion piece abuts against the second friction piece, so that the friction surface of the second friction piece dynamically rubs against the friction surface of the first friction piece, thereby reducing the descending speed, allowing the escape personnel to slowly descend, and realizing safe descending escape. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 The first schematic view of the escape platform provided by the embodiment of the application;

[0050] Figure 2 The second schematic view of the escape platform provided by the embodiment of the application;

[0051] Figure 3 The third schematic view of the escape platform provided by the embodiment of the application;

[0052] Figure 4 The fourth schematic view of the escape platform provided by the embodiment of the application;

[0053] Figure 5 The fifth schematic view of the escape platform provided by the embodiment of the application;

[0054] Figure 6 The sixth schematic view of the escape platform provided by the embodiment of the application;

[0055] Figure 7 The seventh schematic view of the escape platform provided by the embodiment of the application;

[0056] Figure 8 The structural schematic view of the centrifugal slow descending device provided by the application;

[0057] Figure 9 The structural schematic view of another centrifugal slow descending device provided by the application;

[0058] Figure 10 The structural schematic view of still another centrifugal slow descending device provided by the application;

[0059] Figure 11 The structural schematic view of still another centrifugal slow descending device provided by the application; Figure 10front view of the main section;

[0060] Figure 12 for Figure 10 side view of the main section.

[0061] BRIEF DESCRIPTION OF DRAWINGS

[0062] 1 - fixed frame; 11 - side frame; 111 - first containing space; 112 - second containing space; 12 - second sealing body; 13 - second locking part; 131 - hinged structure; 2 - manual switch; 21 - protection structure; 3 - restoring device; 4 - bearing platform; 41 - first sealing body; 42 - first locking part; 5 - inclined pulling part; 6 - guardrail; 7 - centrifugal slow descent device; 71 - slow descent cable; 72 - connecting end; 8 - connecting part; 9 - fireproof heat insulation curtain;

[0063] 710 - fixed part; 720 - rotating shaft; 730 - cable assembly; 740 - slow release assembly;

[0064] 731 - cable; 732 - rotating disc; 741 - centrifugal guide; 742 - first friction part; 743 - guide limiting part; 744 - second friction part; 745 - centrifugal moving part; 746 - first elastic part; 747 - second elastic part; 751 - friction plate; 752 - moving part; 753 - friction disc; 754 - third elastic part; 755 - second guide part. DETAILED DESCRIPTION

[0065] In order to make the person skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to 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 skilled in the art without creative labor should belong to the protection scope of the present application.

[0066] The escape platform is arranged for forming a platform structure for escaping on the outer wall surface of the building when a dangerous situation occurs. The existing building is usually provided with flat-open, sliding, upper-suspended and lower-suspended windows for lighting and ventilation, but due to the small opening sash and small opening area of the window, the platform for personnel gathering cannot be formed after opening, which greatly reduces the escape probability of the trapped person.

[0067] The escape platform provided by the application can be arranged at a position of each floor of a building where people can conveniently escape, and the platform can be used as a part of the building when closed, and can be used to realize functions such as lighting, ventilation and smoke exhaust of a window; when opened, the platform can form a platform on the outer facade of the building, and has a certain bearing capacity, so that the escape personnel can gather on the platform to wait for rescue or use a centrifugal slow descent device to descend to a safe position to escape from danger.

[0068] As Figures 1-7 The escape platform provided by the embodiment of the application is arranged on a hole of a building, and the position of the escape platform needs to be ensured to meet the facade effect requirement of the building. The escape platform comprises a bearing platform 4 and a fixed frame 1, the fixed frame 1 is arranged on the hole 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, and the manual switch 2 is provided with a protection structure 21. In a normal case, the manual switch 2 is sealed in the protection structure 21 to avoid being accidentally touched. When used, the protection structure 21 is opened or removed, and then the manual switch 2 can be operated.

[0069] A first sealing body 41 is arranged in the four side frames of the bearing platform 4. When the bearing platform 4 is in a closed state, the first sealing body 41 is pressed 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 bearing platform 4 and is located at the edge of the bearing platform 4. 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.

[0070] 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 side 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 side frame of the fixed frame.

[0071] After 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 outward to a set position and stopped. Specifically, the connection and rotation can be realized by a hinged structure 131. When the bearing platform 4 is in an open state, the escape personnel need to gather on the bearing platform 4, and the bearing platform 4 should have a certain bearing capacity.

[0072] 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 hole is arranged and the longer the cantilever of the cantilever structure is, the more difficult it is for the bearing platform 4 to bear. Therefore, after the bearing platform 4 is opened, a cable-stayed component 5 connected with the bearing platform 4 is arranged on both sides of the fixed frame 1 to enhance the bearing strength of the bearing platform 4.

[0073] The inclined pulling component 5 can be a rod structure and is provided with a limiting device, which can make the inclined pulling component 5 run in a specified direction and make the inclined pulling component 5 be in a first containing space provided by the bearing platform 4 or the fixed frame 1 when the bearing platform 4 restores to the closed state. The inclined pulling component 5 can also be a telescopic component, which can stretch or contract to a specified position in a specified direction when the bearing platform 4 is opened, and the telescopic component can be in the containing space of the bearing platform 4 or the fixed frame 1 when the bearing platform 4 restores to the closed state. The inclined pulling component 5 can also be a rope or chain component, which can stretch to a specified position and stop running when the bearing platform 4 is in the opened state. One end of the rope or chain component can be provided with a counterweight structure or a friction structure, so as to make the bearing platform 4 slowly open.

[0074] At this time, the bearing platform 4 has the escape function, but in order to ensure that the escape personnel on the bearing platform 4 do not have the risk of falling, the side of the bearing platform 4 which is not connected with the wall body can be provided with a safety guardrail 6 when the bearing platform 4 is in the opened state. The guardrail 6 automatically rises when the bearing platform 4 is opened, so as 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 rises to a specified height and is locked during the opening process of the bearing platform 4. A gap for the escape personnel is arranged at the position of the guardrail of the bearing platform. After wearing the escape equipment, the escape personnel can safely escape through the gap without climbing over the guardrail. The number and position of the gap can be set according to the use condition. A handrail is arranged at the position of the gap. Before using the gap, the handrail is manually opened for escape.

[0075] The fixed frame 1 is also provided with a connecting part 8 of the backpack type centrifugal slow descent device. The escape personnel wears the escape backpack, the slow descent cable of the backpack type centrifugal slow descent device is connected with the connecting part 8, and the lifting of the backpack type centrifugal slow descent device is realized through the slow descent cable. Specifically, after the escape personnel wears the backpack type centrifugal slow descent device, the connecting end of the slow descent cable is connected with the connecting end of the connecting part 8. In the actual use process, the backpack type centrifugal slow descent device realizes slow descent under a certain gravity through a friction part. The slow descent cable is stored in a winch connected with the friction part. The whole component is installed in the backpack. The connecting end of the slow descent cable extends out of the backpack and is connected with the connecting part 8 arranged on the fixed frame 1. After the escape personnel fixes the backpack type centrifugal slow descent device on the body through the safety belt, the escape personnel can realize escape. The friction of the friction part can be adjusted. The adjustment of the friction can change the descending speed. The backpack type centrifugal slow descent device can be provided with a descending stopping device. The descending stopping device is manually controlled. The descending stopping device can extrude the friction part through an 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 cable through the extrusion structure to increase the friction. When the friction is greater than the gravity, the descending is stopped.

[0076] The escape platform is also provided with a restoring device 3 arranged on the fixed frame 1. After the carrying platform 4 completes the escape task, the functions and components of the carrying platform 4 are checked. If the functions and components of the carrying platform 4 are not damaged, the carrying platform 4 can be manually restored to the closed state from the indoor side by using the restoring device 3, and is locked by the locking structure arranged on the fixed frame 1 and the carrying platform 4. After the carrying platform 4 is restored to the initial state, the carrying platform 4 can be repeatedly used.

[0077] Specifically, a rope component can be used to connect the restoring device 3 and the carrying platform 4. One end of the rope component is connected to the carrying platform 4, and the other end is connected to a rope wheel of the restoring device 3. The rope wheel is controlled by the one-way movement principle of the pawl. A tool corresponding to the pawl is used to rotate the rope wheel, so that the rope component is wound on the rope wheel, and the carrying platform 4 is pulled to the initial state. A chain component can also be used. The chain is matched with a chain wheel. The chain is retracted by rotating the chain wheel. The retracted chain enters the accommodation space, pulls the carrying platform 4 to the initial state, and is locked. A lead screw structure can also be used to restore. The rotation of the lead screw makes the nut connected to the lead screw move linearly. The nut rope component, chain component or connecting rod component is linked with the escape platform. The nut moves in the set direction to restore the escape platform to the initial state and lock it.

[0078] The escape platform can also be provided with a centrifugal slow descending device 7, and the escape is realized by the centrifugal slow descending device 7. When used, the escape personnel need to wear an escape safety harness. After wearing the safety harness, the safety harness is connected to the slow descending rope 71 of the centrifugal slow descending device 7, and can be slowly descended to a safe position or the ground for escape. The centrifugal slow descending device 7 is arranged on the indoor side wall, and the number thereof can be set to be multiple. The connection end for connecting with the safety harness worn by the escape personnel extends out of the outdoor side, so that the escape personnel can quickly escape after wearing the safety harness and connecting with the connection end of the centrifugal slow descending device.

[0079] The centrifugal slow descending device 7 can also be arranged on the fixed frame 1, and the number thereof can be set to be multiple. The connection end 72 of the centrifugal slow descending device 7 arranged on the fixed frame 1 also extends out of the outdoor side, so as to facilitate the escape personnel to quickly escape.

[0080] The centrifugal 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 centrifugal 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 centrifugal 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 will be connected with the connecting end 72 of the centrifugal slow descent device. It needs to be explained that the number of the above-mentioned first connecting part and the third locking part is multiple. In the actual use process, it is not necessary to use multiple first connecting parts and third locking parts at the same time to realize the escape function. One escape or one escape personnel only needs to use a pair of first connecting part and third locking part. The multiple first connecting part and third locking part 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.

[0081] The centrifugal slow descent device 7 can also be arranged as a reciprocating structure, for example, each centrifugal 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 the safety position or the ground, and then takes off the escape harness. At this time, the personnel waiting to escape on the bearing platform 4 can use the other second connecting part to descend. When the second personnel waiting to escape descends, the connecting 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. After wearing the escape harness, the escape personnel can quickly escape from the dangerous environment.

[0082] The escape platform can also be provided with a fireproof heat insulation curtain 9. The fireproof heat insulation curtain 9 is arranged on the indoor side of the upper edge frame of the fixed frame 1. The guide limiting part of the fireproof heat insulation curtain 9 is arranged on the indoor side of the side edge frame 11 of the fixed frame 1. After the escape personnel reaches the bearing platform 4, the fireproof heat insulation 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 personnel in the room who have not escaped to the bearing platform 4, they can also open the fireproof heat insulation curtain 9 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, thereby gaining more escape time.

[0083] The fireproof heat insulation curtain 9 is rotated and contracted under the shaft of the containing 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 limiting parts. When the heat insulation curtain runs to the set position, a locking structure is arranged at the set position. The locking structure can be opened from the indoor side and the outdoor side, so that the personnel who have not escaped to the escape platform can continue to hide and escape.

[0084] It should be noted that the centrifugal 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, but also to other scenes with height difference, such as tower crane, mountain, bridge, mine or ship scene.

[0085] Based on the foregoing escape platform, the specific structure of the centrifugal slow descent device 7 will be described in detail as follows:

[0086] Referring to Figures 8-10 The embodiment of the present application provides a centrifugal slow descent device, i.e. the centrifugal slow descent device in the foregoing, which is applied to an escape platform including a bearing platform and a fixed frame. The centrifugal slow descent device includes a fixed part 710, a rotating shaft 720, a cable assembly 730 and a slow release assembly 740.

[0087] As shown in Figure 8 The fixed part 710 can be a metal connecting seat, which includes a horizontally arranged fixed plate and a vertically arranged connecting plate. The fixed plate can be fixed on the bearing platform, the fixed frame or the building facade. The connecting plates are vertically arranged on the fixed plate.

[0088] The rotating shaft 720 penetrates through the fixed plates of the fixed part 710 and is rotationally connected with the fixed part 710. The cable assembly 730 is fixedly connected with the rotating shaft 720 and coaxially arranged with the rotating shaft 720. When the escape personnel descends to escape through the cable assembly 730, the cable assembly 730 drives the rotating shaft 720 to make a first rotational motion, which can be a clockwise rotational motion. The slow release assembly 740 applies a reverse force to the rotating shaft 720 to hinder the first rotational motion, so as to reduce the rotational speed of the rotating shaft 720, the release speed of the cable assembly 730 and the descending speed of the escape personnel, thereby avoiding the harm caused by the too fast descending speed of the escape personnel.

[0089] The slow release assembly 740 includes;

[0090] A centrifugal guide 741 connected with the rotating shaft 720, which is directly or indirectly connected with the rotating shaft 720. The rotating shaft 720 drives the centrifugal guide 741 to rotate synchronously.

[0091] A centrifugal moving part 745 in sliding connection with the centrifugal guide 741, which can be provided in plurality.

[0092] A first friction part 742 fixed to the fixed part, which can be an annular friction disc. The first friction part 742 is fixed on the fixed part 710. The friction surface of the first friction part 742 is perpendicular to the axis of the rotating shaft 720. The first friction part 742 can be sleeved with the rotating shaft 720.

[0093] A second friction piece 744 is arranged between the centrifugal guide 741 and the first friction piece 742 and is connected with the rotating shaft 720 or the centrifugal guide 741 or the centrifugal moving piece 745, the friction surface of the second friction piece 744 faces the friction surface of the first friction piece 742, and the two friction surfaces are parallel to each other;

[0094] The second friction piece 744 can be a ring-shaped friction disc, the second friction piece 744 can be sleeved with the rotating shaft 720, the second friction piece 744 rotates synchronously with the rotating shaft 720 or the centrifugal guide 741 or the centrifugal moving piece 745, and the second friction piece 744 can move along the axial direction of the rotating shaft 720;

[0095] When the escape personnel descend through the cable assembly, the cable assembly 730 drives the rotating shaft 720, the centrifugal guide 741 and the second friction piece 744 to make a first rotating motion, the centrifugal moving piece 745 rotates around the rotating axis of the centrifugal guide 741, under the limiting action of the centrifugal guide 741, the component force of the centrifugal moving piece 745 faces the second friction piece 744, the centrifugal moving piece 745 abuts against the second friction piece 744, so that the friction surface of the second friction piece 744 dynamically rubs against the friction surface of the first friction piece 742, the friction force hinders the first rotating motion of the second friction piece 744, and further hinders the rotating release of the cable assembly 730, thereby reducing the descending speed of the user;

[0096] Moreover, when the descending speed of the user is too fast, the rotating speed of the cable assembly 730 is higher, the centrifugal force of the centrifugal moving piece 745 is greater, the pushing force of the centrifugal moving piece 745 on the second friction piece 744 is greater, the pressure of the second friction piece 744 on the first friction piece 742 is greater, the second friction piece 744 rotates relative to the first friction piece 742, the friction force between the two is greater, the resistance received by the second friction piece 744 is greater, thereby reducing the rotating speed of the cable assembly 730, and avoiding that the descending speed of the user is too fast.

[0097] As shown in FIG. 1, Figure 8 In some embodiments, the centrifugal guide 741 includes a guide part, the guide part is a cover body, the open end of the centrifugal guide 741 faces the second friction piece 744 and faces the friction surface of the first friction piece 742, the axial section of the inner wall of the centrifugal guide 741 is conical or semi-elliptical, the centrifugal guide 741 is fixedly connected with the rotating shaft 720 and is coaxially arranged, and the centrifugal guide 741 rotates synchronously and in the same direction with the rotating shaft 720;

[0098] In order to make the second friction piece 744 rotate synchronously with the rotating shaft 720 or the centrifugal guide 741 and make the second friction piece 744 move along the axial direction of the rotating shaft 720, a guide limiting piece 743 is arranged on the rotating shaft 720 or the centrifugal guide 741;

[0099] The centrifugal moving member 745 can be a metal ball or an extruded block with a certain mass, and is located in a space surrounded by the second friction member 744 and the centrifugal guide member 741. The centrifugal moving member 745 is provided with at least one;

[0100] When the escape personnel descend through the cable 731, the cable 731 drives the rotating disc 732, the rotating shaft 720 and the centrifugal guide member 741 to make a first motion. With the increase of the descending speed, the rotating speed of the centrifugal guide member 741 increases, and the centrifugal moving member 745 makes a centrifugal motion in the centrifugal guide member 741. Due to the inclined arrangement of the inner wall of the centrifugal guide member 741, the centrifugal moving member 745 moves to the side of the second friction member 744 under the action of the centrifugal force component, and the centrifugal moving member 745 applies a pushing force to the second friction member 744 in the direction of the first friction member 742, so that the friction surface of the second friction member 744 dynamically rubs with the friction surface of the first friction member 742. The greater the rotating speed of the centrifugal guide member 741 is, the greater the centrifugal force of the centrifugal moving member 745 is, and the greater the pushing force of the centrifugal moving member 745 to the second friction member 744 is, so that the dynamic friction force between the second friction member 744 and the first friction member 742 is greater.

[0101] The dynamic friction force between the second friction member 744 and the first friction member 742 hinders the rotation of the second friction member 744, that is, hinders the rotation of the centrifugal guide member 741, the rotating shaft 720 and the rotating disc 732, so as to reduce the descending speed and make the escape personnel descend slowly, thereby realizing safe and rapid descending escape.

[0102] In some embodiments, the guide limiting member 743 includes a first limiting part, which can be a cuboid. The first limiting part is fixedly arranged on the outer wall of the rotating shaft or the inner wall of the centrifugal guide member, and the extension direction of the first limiting part is parallel to the axis of the rotating shaft.

[0103] A second limiting part is arranged on the second friction member, which is a groove body matched with the first limiting part. The first limiting part and the second limiting part are clamped together, so that the second friction member 744 rotates synchronously with the rotating shaft 720 or the centrifugal guide member 741, and the second friction member 744 can move along the axial direction of the rotating shaft 720.

[0104] As shown in FIG. 1, Figure 9 In some embodiments, the centrifugal guide member 741 includes a plurality of inclined rod bodies, which can be circular rod bodies arranged at an inclination of 45°. One end of the inclined rod body is connected with the rotating shaft, and the other end of the inclined rod body extends to the side of the second friction member.

[0105] Figure 9 The centrifugal guide member 741 is composed of two inclined rod bodies and has a V shape. The centrifugal guide member 741 can also be composed of a plurality of inclined rod bodies.

[0106] The centrifugal moving piece 745 can be a sleeve matched with the centrifugal guide piece 741, the centrifugal moving piece is sleeved with the inclined rod body, and the outer end of the centrifugal moving piece is in sliding connection with the second friction piece 744;

[0107] When the centrifugal guide piece 741 rotates, the centrifugal moving piece 745 rotates synchronously, and the centrifugal moving piece 745 moves upward under the action of centrifugal force, pushes the second friction piece 744 upward, and makes the friction surface of the second friction piece 744 frictionally move with the friction surface of the first friction piece 742, so that the friction force hinders the first rotation of the second friction piece 744 and further hinders the rotation release of the cable assembly 730, thereby reducing the descending speed of the user;

[0108] When the descending speed of the user is too fast, the greater the pushing force of the centrifugal moving piece 745 on the second friction piece 744 is, the greater the pressure of the second friction piece 744 on the first friction piece 742 is, the greater the friction between the second friction piece 744 and the first friction piece 742 is, the greater the resistance borne by the second friction piece 744 is, and thus the rotation speed of the cable assembly 730 is reduced, and the descending speed of the user is prevented from being too fast.

[0109] In some embodiments, the slow-release assembly further comprises a first elastic piece 746, which can be a spring or an air cylinder;

[0110] As shown in the figure, the first elastic piece 746 is a spring, the bottom end of the spring is connected with the inclined rod body or the rotating shaft, and the top end of the spring is connected with the centrifugal moving piece; Figure 9

[0111] The first elastic piece 746 is always in a compressed state, and provides an upward elastic force to the centrifugal moving piece 745, so that the centrifugal moving piece 745 abuts against the second friction piece 744, to make the second friction piece 744 always abut against the first friction piece 742.

[0112] In some embodiments, the outer wall of the second friction piece 744 is provided with a third limiting part, as shown in the figure, the third limiting part is a conventional horizontal sliding groove, and the outer end of the centrifugal moving piece is provided with a fourth limiting part, which can be a rectangular sliding block matched with the third limiting part; Figure 9

[0113] The outer wall of the fourth limiting part is in sliding connection with the inner wall of the third limiting part, so that the centrifugal moving piece 745 drives the second friction piece 744 to rotate synchronously, and the centrifugal moving piece 745 is in sliding connection with the second friction piece 744.

[0114] Similarly, the second friction piece 744 can also be connected with the rotating shaft or the inclined rod body;

[0115] ​​The fifth limiting part is arranged on the rotating shaft, the third limiting part is a horizontal conventional sliding slot, the fifth limiting part can be a rectangular sliding block matched with the third limiting part, the extending direction of the rectangular sliding block is parallel to the axis of the rotating shaft, and the outer wall of the rectangular sliding block is in sliding connection with the inner wall of the conventional sliding slot.

[0116] The sixth limiting part is arranged on the inclined rod body, the third limiting part is a through hole, the sixth limiting part is a guide rod body, the axes of the through hole, the guide rod body and the rotating shaft are parallel, and the guide rod body is inserted into the through hole, so that the limiting and guiding are realized.

[0117] As shown in Figures 10-12 the first friction piece 742 is a ring body structure, the first friction piece 742 is sleeved with the rotating shaft 720, and is fixedly connected with the fixed part 710;

[0118] The centrifugal guide piece 741 comprises guide rods, the guide rods are straight rod bodies, the guide rods are located in the first friction piece 742, one end of the guide rod is connected with the rotating shaft 720, and the other end of the guide rod extends to the first friction piece 742;

[0119] The centrifugal motion piece 745 can be a sleeve ring structure, the centrifugal motion piece 745 is sleeved with the guide rod, and the centrifugal motion piece 745 and the second friction piece 744 can be an integral structure, the second friction piece 744 is located at the outer end of the ring body structure,

[0120] the outer end of the sleeve ring structure is in sliding connection with the first friction piece 742, that is, the second friction piece 744 is in sliding connection with the inner wall of the first friction piece 742;

[0121] When the rotating shaft 720 and the centrifugal guide piece 741 are driven by the cable assembly 730 to make the first rotating motion, the centrifugal guide piece 741 drives the centrifugal motion piece 745 to move, the centrifugal motion piece 745 is in sliding friction with the second friction piece 744 under the action of the centrifugal force, the friction force exerts the reverse force on the centrifugal guide piece 741 and the rotating shaft 720 to hinder the first rotating motion, so as to reduce the rotating speed of the rotating shaft 720, reduce the release speed of the cable assembly 730, and further reduce the descending speed of the escape personnel, so as to avoid the harm caused by the too fast descending speed of the escape personnel.

[0122] The slow-release assembly further comprises a second elastic piece 747;

[0123] One end of the second elastic piece 747 in the extending direction is connected with the rotating shaft or the guide rod, the other end of the second elastic piece 747 in the extending direction is connected with the centrifugal motion piece, the second elastic piece 747 can be a spring, the spring is sleeved with the guide rod, the inner end of the spring is in abutment with the rotating shaft or the guide rod, and the outer end of the spring is in abutment with the centrifugal motion piece 745;

[0124] The second elastic member 747 is always in a compressed state, and exerts an elastic force on the centrifugal moving member 745 towards the second friction member 744, so that the outer wall of the centrifugal moving member 745 abuts against the inner wall of the second friction member 744, thereby providing an initial frictional resistance.

[0125] Referring to Figure 8 As shown in the drawings, in some embodiments, the cable assembly 730 includes a cable 731 and a rotating disc 732;

[0126] The rotating disc 732 is sleeved on the rotating shaft 720 and is rotationally connected with the rotating shaft 720, the side wall of the rotating disc 732 is fixedly connected with the end of the friction ring 740, and the rotating disc 732 and the friction ring 740 rotate at the same speed and in the same direction;

[0127] The cable 731 can be a cable, and the cable 732 is wound on the rotating disc 732, and the outer end of the cable 731 is provided with a connecting ring;

[0128] When the escape personnel descends through the cable 731, the cable 731 drives the rotating disc 732 and the friction ring 740 to perform a first rotational motion.

[0129] Referring to Figure 8 As shown in the drawings, in some embodiments, the centrifugal slow descent device further includes a slow release mechanism 750, and the slow release mechanism 750 includes:

[0130] The friction plate 751 is slidably sleeved on the outside of the rotating shaft 720 and is fixed on the fixed part 710, and the friction plate 751 can be a circular friction plate;

[0131] The moving member 752 is arranged on the rotating shaft 720, and the moving member 752 can be a nut;

[0132] The friction disc 753 is slidably sleeved on the outside of the rotating shaft 720, the friction disc 753 has an annular structure, is sleeved on the rotating shaft 720, is located between the friction plate 751 and the moving member 752, is attached to the friction plate 751, and the friction disc 753 rotates synchronously with the rotating shaft 720, the outer wall of the rotating shaft 720 can be provided with a first limiting part, the extension direction of the first limiting part is consistent with the axis of the rotating shaft 720, the inner end of the friction disc 753 is provided with a second limiting part, the first limiting part is connected with the second limiting part, and the first limiting part can slide in the second limiting part at a small amplitude, so that the friction disc 753 rotates synchronously with the rotating shaft 720, and the friction disc 753 can slide on the rotating shaft 720 at a small amplitude;

[0133] The third elastic member 754 is arranged between the moving member 752 and the friction disc 753, the third elastic member 754 can be a spring or an air cylinder, the two ends of the extension direction of the third elastic member 754 are respectively abutted with the moving member 752 and the friction disc 753, the third elastic member 754 is always in a compressed state, so that the friction disc 753 is always attached to the friction plate 751;

[0134] The friction disc 753 is attached to the friction plate 751, when the rotating shaft 720 drives the friction disc 753 to rotate, the friction disc 753 and the friction plate 751 generate dynamic friction, which hinders the rotating shaft 720 from rotating, and further hinders the rotating disc 732 from rotating, and reduces the descending speed of the escapee.

[0135] In some embodiments, the slow-release mechanism 750 further comprises a second guide 755;

[0136] The outer wall of the rotating shaft 720 is provided with external threads, and the moving part 752 is screwed with the external threads of the rotating shaft 720;

[0137] The second guide 755 is arranged on the fixed part 710, and the second guide 755 can be a sliding rail, and the outer wall of the moving part 752 is provided with a sliding groove, and the sliding rail and the sliding groove are slidingly connected, so that the moving part 752 cannot rotate;

[0138] When the rotating shaft 720 performs the second rotating motion, the moving part 752 cannot rotate synchronously, and the moving part 752 moves towards the friction plate 751 under the action of the second guide 755, so that the third elastic part 754 is further compressed, the elastic force of the friction disc 753 is increased, the dynamic friction force between the friction disc 753 and the friction plate 751 is increased, and the reverse force of the rotating disc 732 performing the first rotating motion is increased, and the length of the second guide 755 can be set to control the maximum dynamic friction force between the friction disc 753 and the friction plate 751.

[0139] The application provides an escape platform, which comprises a bearing platform 4 and a fixed frame 1;

[0140] 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;

[0141] When the bearing platform 4 is in the closed state, the bearing platform 4 is clamped in the fixed frame to block the opening;

[0142] 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 escapee to stay;

[0143] Further comprising the centrifugal slow descending device 7 obtained above;

[0144] The fixed part 710 is fixedly arranged on the fixed frame 1 or the wall at the opening position.

[0145] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the application, and it should be understood that the above is only a specific embodiment of the application, and is not used to limit the protection scope of the application, and any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the application shall be included in the protection scope of the application.

[0146] It is easy to understand that the skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of the several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0147] The above detailed description of the specific embodiments of the present application has 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 centrifugal slow descent device applied to an escape platform comprising a load bearing platform and a fixed frame, characterized in that: The centrifugal slow-release device comprises: a fixing part arranged on the bearing platform, the fixing frame or the building facade; a rotating shaft rotatably connected with the fixing part; a cable assembly arranged on the rotating shaft, the cable assembly being connected with the rotating shaft and driving the rotating shaft to make a first rotating motion; a slow-release assembly arranged between the fixing part and the rotating shaft, the slow-release assembly being used to apply a reverse force to the rotating shaft to resist the first rotating motion; the slow-release assembly comprises: a centrifugal guide connected with the rotating shaft; a centrifugal moving part slidably connected with the centrifugal guide; a first friction part fixed to the fixing part; a second friction part arranged between the centrifugal guide and the first friction part and connected with the rotating shaft, the centrifugal guide or the centrifugal moving part, the friction surfaces of the first friction part and the second friction part being oppositely arranged; when the escapee descends through the cable assembly, the cable assembly drives the rotating shaft, the centrifugal guide and the second friction part to make a first rotating motion, the centrifugal moving part rotates around the rotating axis of the centrifugal guide, under the limiting action of the centrifugal guide, the component force of the centrifugal moving part is directed towards the second friction part, and the centrifugal moving part abuts against the second friction part to make the friction surfaces of the second friction part and the first friction part dynamically rub against each other.

2. The centrifugal slow-release device according to claim 1, wherein: the centrifugal guide comprises a guide part, the open end of the guide part being directed towards the second friction part, a guide limiting part being arranged on the rotating shaft or the centrifugal guide and connected with the second friction part to drive the second friction part to move with the rotating shaft or the centrifugal guide; the centrifugal moving part is an extrusion block, and a plurality of extrusion blocks are slidably connected with the centrifugal guide; when the centrifugal guide and the second friction part make a first motion with the rotating shaft, the extrusion blocks make a centrifugal motion in the centrifugal guide, the extrusion blocks apply a pushing force to the second friction part in the direction of the first friction part to make the second friction part dynamically rub against the first friction part.

3. The centrifugal slow-release device according to claim 2, wherein: the guide limiting part comprises a first limiting part, the first limiting part being fixed to the outer wall of the rotating shaft or the inner wall of the centrifugal guide, and the extension direction of the first limiting part being parallel to the axis of the rotating shaft; a second limiting part is arranged on the second friction part, and the first limiting part is connected with the second limiting part.

4. The centrifugal slow-release device according to claim 1, wherein: the centrifugal guide comprises a plurality of inclined rod bodies, one end of each of the inclined rod bodies being connected with the rotating shaft, and the other end of each of the inclined rod bodies extending towards the second friction part; the centrifugal moving part is slidably connected with the inclined rod bodies.

5. The centrifugal slow-release device according to claim 4, wherein: the slow-release assembly further comprises a first elastic part. One end of the first elastic member in the direction of expansion and contraction is connected to the inclined rod body or the rotating shaft, and the other end of the first elastic member in the direction of expansion and contraction is connected to the centrifugal moving member; The first elastic member is always in a compressed state, so that the second friction member is attached to the first friction member.

6. The centrifugal slow descending device according to claim 4, characterized in that: An outer end of the centrifugal moving member is provided with a fourth limiting part; The second friction member is provided with a third limiting part, and an outer wall of the fourth limiting part is connected to the third limiting part; Or, the rotating shaft is provided with a fifth limiting part, and the outer wall of the fourth limiting part is connected to the fifth limiting part; Or, the inclined rod body is provided with a sixth limiting part, and the outer wall of the fourth limiting part is connected to the sixth limiting part.

7. The centrifugal slow descending device according to claim 1, characterized in that: The first friction member is a ring body structure, and the first friction member is sleeved on the rotating shaft; The centrifugal guide member includes guide rods, and a plurality of guide rods are located in the first friction member, one end of the guide rod is connected to the rotating shaft, and the other end of the guide rod extends to the first friction member; The centrifugal moving member is sleeved on the guide rod, the second friction member is arranged on the centrifugal moving member, and the second friction member is in sliding connection with the first friction member.

8. The centrifugal slow descending device according to claim 7, characterized in that: The slow release assembly further includes a second elastic member; One end of the second elastic member in the direction of expansion and contraction is connected to the rotating shaft or the guide rod, and the other end of the second elastic member in the direction of expansion and contraction is connected to the centrifugal moving member; The second elastic member is always in a compressed state, and exerts a spring force on the centrifugal moving member towards the second friction member, so that the outer wall of the centrifugal moving member abuts against the inner wall of the second friction member.

9. The centrifugal glide device of claim 1, wherein: The cable assembly includes a cable and a rotating disc; The rotating disc is sleeved on the rotating shaft and is fixedly connected to the rotating shaft, and the cable is wound on the rotating disc; When the escapee descends through the cable, the cable drives the rotating disc and the rotating shaft to perform the first rotating motion.

10. The centrifugal glide device of claim 1, wherein: The centrifugal slow descending device further includes a slow release mechanism, and the slow release mechanism includes: A friction plate fixed to the fixed part; A moving member arranged on the rotating shaft; A friction disc located between the friction plate and the moving member; A third elastic member arranged between the moving member and the friction disc, and both ends of the third elastic member in the direction of expansion and contraction abut against the moving member and the friction disc, respectively.

11. An escape platform characterized by: The fixed frame is arranged in the opening of the building facade, and the bearing platform is movably connected to the fixed frame; When the bearing platform is in a closed state, the bearing platform is clamped in the fixed frame to block the opening; When the bearing platform is in an open state, the bearing platform is moved to the outside of the building facade to form a platform for the escapee to stay; The centrifugal slow descending device according to any one of claims 1-10 is further included; The fixed part is fixedly arranged on the fixed frame or the wall at the position of the opening. ​

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