Escape platform guardrail lifting device and escape platform

Abstract

The utility model provides an escape platform guardrail lifting device and an escape platform, and the device comprises guardrails which are connected to three side edges, which are not connected with a fixed frame, of a bearing platform; the lifting part is arranged in the fixed frame or between the bearing platform and the fixed frame; when the bearing platform moves in the first direction, the guardrail moves in the second direction through the lifting part, so that the distance between the guardrail and the bearing platform reaches a preset value; the first direction is away from the interior; the second direction is the unfolding direction of the guardrail; the problems that a guardrail device arranged on an existing escape platform cannot achieve the automatic lifting function, due to the fact that no appropriate fixing tool exists, the guardrail device is very not firm after being unfolded, and then large potential safety hazards exist when escape personnel are located on the escape platform are solved.

Description

[0001] This 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 an escape platform guardrail lifting 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] The escape platform is usually installed on the opening of the building for personnel to escape in emergency situations, which can quickly evacuate indoor personnel. In the non-use state, the escape platform is usually hidden in the wall in a folded manner and is locked with the frame installed on the opening of the building. When an emergency situation occurs, a manual unlocking device is needed to deploy the escape platform.

[0005] However, the guardrail device provided on the existing escape platform cannot realize automatic lifting function, and generally adopts a manual pulling method to deploy the guardrail device from the escape platform. Without a suitable fixing tool, the guardrail device is very unstable after deployment, which further causes a great safety hazard to the escape personnel on the escape platform. CONTENT OF THE INVENTION

[0006] The present application provides an escape platform guardrail lifting device and an escape platform to solve the technical problem that the guardrail device provided on the existing escape platform cannot realize automatic lifting function, and without a suitable fixing tool, the guardrail device is very unstable after deployment, which further causes a great safety hazard to the escape personnel on the escape platform.

[0007] The first aspect of the present application provides an escape platform guardrail lifting device applied to an escape platform including a bearing platform and a fixed frame, wherein the bearing platform is rotationally connected to the fixed frame, and the escape platform guardrail lifting device comprises:

[0008] a guardrail connected to three side edges of the bearing platform that are not connected to the fixed frame;

[0009] a lifting part provided in the fixed frame or between the bearing platform and the fixed frame;

[0010] When the bearing platform moves in a first direction, the guardrail moves in a second direction through the lifting part to achieve a preset distance between the guardrail and the bearing platform; the first direction is a direction away from the indoor space; and the second direction is a direction in which the guardrail is unfolded.

[0011] In some embodiments, the lifting part comprises:

[0012] A guide wheel is arranged on the fixed frame.

[0013] A pull cable is connected at one end to a side of the guardrail close to the fixed frame and at the other end to a side of the bearing platform away from the fixed frame after winding around the guide wheel.

[0014] When the bearing platform rotates in a first direction, the guardrail moves in a second direction through the pull cable to achieve unfolding of the guardrail; the first direction is a direction away from the indoor space; and the second direction is a direction in which the guardrail is unfolded.

[0015] In some embodiments, the device further comprises:

[0016] A guide part is arranged on the fixed frame, one end of the guide part being connected to one side of the fixed frame and the other end being connected to the other side of the fixed frame.

[0017] A guide device is connected at one end to the guide part so that the guide device is connected to the guide part, and the other end of the guide device is connected to the handrail part.

[0018] In some embodiments, the lifting part comprises:

[0019] At least one first pull rod is connected at one end to the guide wheel.

[0020] At least one second pull rod is connected at one end to the other end of the first pull rod and at the other end to the guardrail.

[0021] When the distance between the guardrail and the bearing platform reaches a preset value, the angle between the first pull rod and the second pull rod reaches a preset angle value.

[0022] In some embodiments, the lifting part comprises:

[0023] At least one elastic member is connected at one end to the bearing platform and at the other end to the guardrail.

[0024] When the distance between the guardrail and the bearing platform is less than a preset value, the elastic member is in a stressed state.

[0025] In some embodiments, a plurality of sets of the elastic member are arranged between the guardrail and the bearing platform.

[0026] In some embodiments, the rising portion further comprises:

[0027] An execution portion, one end of which is connected to the bearing platform and the other end of which is connected to the guardrail.

[0028] In some embodiments, the execution portion comprises:

[0029] Any one of a pneumatic cylinder, an oil cylinder, a rack, or an electric push rod motor.

[0030] In some embodiments, the guardrail comprises:

[0031] A plurality of first connecting rods, one end of each of which is connected to the bearing platform;

[0032] A plurality of second connecting rods, one end of each of which is connected to the first connecting rod and the other end of each of which is connected to a handrail portion.

[0033] In some embodiments, the device further comprises:

[0034] A self-locking structure located at the connection between the second connecting rod and the handrail portion;

[0035] When the distance between the guardrail and the bearing platform reaches a preset value, the second connecting rod is locked between the handrail portion and the locking component of the self-locking structure.

[0036] A self-locking structure located at the connection between the first connecting rod and the second connecting rod;

[0037] When the guardrail is unfolded to a preset value, the first connecting rod is locked between the second connecting rod and the locking component of the self-locking structure.

[0038] The second aspect of the present application provides an escape platform, comprising: a bearing platform and a fixed frame;

[0039] The fixed frame is arranged in an opening formed in a building facade, and the bearing platform is rotationally connected to the fixed frame.

[0040] When the bearing platform is in a closed state, the bearing platform is arranged in the fixed frame to block the opening.

[0041] 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 escape personnel to stay.

[0042] The escape platform further comprises:

[0043] The escape platform guardrail raising device according to any one of the first aspect as described above;

[0044] When the bearing platform moves in a first direction, the guardrail moves in a second direction through the escape platform guardrail raising device, so that the distance between the guardrail and the bearing platform reaches a preset value; the first direction is a direction away from the room; and the second direction is a direction in which the guardrail moves away from the bearing platform.

[0045] The escape platform guardrail raising device and the escape platform are provided, and are applied to an escape platform including a bearing platform and a fixed frame, wherein the bearing platform is rotationally connected to the fixed frame; the device includes a guardrail, the guardrail being connected to three side edges of the bearing platform which are not connected to the fixed frame, and two ends of the guardrail close to the fixed frame being connected to the fixed frame; a raising part is arranged in the fixed frame or between the bearing platform and the fixed frame; when the bearing platform moves in a first direction, the guardrail moves in a second direction through the raising part, so that the distance between the guardrail and the bearing platform reaches a preset value; the first direction is a direction away from the room; and the second direction is a direction in which the guardrail is unfolded. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the embodiments will be briefly introduced as follows: obviously, other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0047] Figure 1 A first schematic view of an escape platform is provided for the embodiments of the present application.

[0048] Figure 2 A second schematic view of an escape platform is provided for the embodiments of the present application.

[0049] Figure 3 A third schematic view of an escape platform is provided for the embodiments of the present application.

[0050] Figure 4 A fourth schematic view of an escape platform is provided for the embodiments of the present application.

[0051] Figure 5A fifth schematic view of an escape platform according to an embodiment of the present application;

[0052] Figure 6 A sixth schematic view of an escape platform according to an embodiment of the present application;

[0053] Figure 7 A seventh schematic view of an escape platform according to an embodiment of the present application;

[0054] Figure 8 A structural schematic view of the escape platform guard raising device according to an embodiment of the present application;

[0055] Figure 9 A structural schematic view of the escape platform guard raising device according to another embodiment of the present application;

[0056] Figure 10 A structural schematic view of the elastic member according to an embodiment of the present application in one form;

[0057] Figure 11 A structural schematic view of the elastic member according to an embodiment of the present application in another form;

[0058] Figure 12 A structural schematic view of the elastic member according to another embodiment of the present application in one form;

[0059] Figure 13 A structural schematic view of the elastic member according to another embodiment of the present application in another form;

[0060] Figure 14 A structural schematic view of the elastic member according to another embodiment of the present application in one form;

[0061] Figure 15 A structural schematic view of the elastic member according to another embodiment of the present application in another form;

[0062] Figure 16 A structural schematic view of the first execution part according to an embodiment of the present application;

[0063] Figure 17 A structural schematic view of the first execution part according to another embodiment of the present application;

[0064] Figure 18 A structural schematic view of the second execution part according to an embodiment of the present application;

[0065] Figure 19 A structural schematic view of the second execution part according to another embodiment of the present application.

[0066] In the drawings:

[0067] 1 - fixed frame; 100 - lifting part; 101 - guide wheel; 102 - cable; 103 - guide part; 104 - guide device; 105 - first pull rod; 106 - second pull rod; 107 - elastic member; 108 - execution part; 1081 - first execution part; 1082 - second execution part; 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 - recovery device; 4 - bearing platform; 41 - first sealing body; 42 - first locking part; 5 - cable-stayed part; 6 - guardrail; 61 - first connecting rod; 62 - second connecting rod; 63 - handrail part; 7 - slow descent device; 71 - slow descent cable; 72 - connecting end; 8 - connecting part; 9 - fireproof and heat insulation curtain. DETAILED DESCRIPTION

[0068] The application provides an escape platform guardrail lifting device and an escape platform to solve the technical problem that the guardrail device provided on the escape platform cannot realize automatic lifting function and no suitable fixing tool is provided, so that the guardrail device is not firm after being unfolded, and thus a great safety hazard exists when an escape personnel is on the escape platform.

[0069] For example, the escape platform is provided for forming a platform structure for escaping on the outer wall surface of a building when a dangerous situation 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, the opening area is small, and the platform for gathering personnel cannot be formed after being opened, which greatly reduces the escape probability of the trapped person.

[0070] The escape platform provided in the application can be arranged at a position convenient for escaping on each floor of the building, and the platform can be used as a part of the building when being closed, and can be used to realize the functions of lighting, ventilation and smoke exhaust of the window; when being opened, the platform can form a platform on the outer facade of the building, has a certain bearing capacity, and the escape personnel can gather on the platform to wait for rescue or use the slow descent device to descend to a safe position to escape from danger.

[0071] As Figures 1 to 7 The escape platform provided in the embodiment of the application is installed on the opening of the building, and the position of the escape platform is ensured to meet the requirements of the facade effect 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 wall 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 in the normal case to avoid being accidentally touched, and when being used, the protection structure 21 is opened or removed, so that the manual switch 2 can be operated.

[0072] The first sealing body 41 is arranged in the four side frames of the bearing platform 4, and is pressed and sealed with the second sealing body 12 arranged on the inner side of the fixed frame 1 when the bearing platform 4 is in the closed state. The guardrail 6 is arranged on the bearing platform 4 and is located at the edge of the bearing platform 4, and is hidden in the first accommodating space 111 of the two side frames 11 of the fixed frame 1 in a foldable manner, and is hidden in the second accommodating space 112 of the upper frame of the fixed frame in a foldable manner.

[0073] The 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 is hidden in the first accommodating space 111 of the two side frames 11 of the fixed frame 1. The first locking part 42 is arranged on the side frame of the bearing platform 4, and forms a locking state with the second locking part 13 arranged on the side frame of the fixed frame.

[0074] 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 and opened to a set position and stopped outside the room. Specifically, the connection and rotation can be realized by the hinged structure 131. When the bearing platform 4 is in the opened state, the personnel need to gather on the bearing platform 4 when escaping, and the bearing platform 4 should have a certain bearing capacity.

[0075] In order to ensure the safety of the escaping personnel, the bearing platform 4 forms a cantilever structure with the wall after being opened. The higher the escape hole is arranged, the longer the cantilever of the cantilever structure is, and the more difficult it is for the bearing platform 4 to bear. Therefore, the cable-stayed component 5 connected with the bearing platform 4 is arranged on both sides of the fixed frame 1 after the bearing platform 4 is opened, so as to enhance the bearing strength of the bearing platform 4.

[0076] The cable-stayed component 5 can be a rod structure and is provided with a limiting device. When the bearing platform 4 returns to the closed state, the cable-stayed component 5 is enabled to run in a specified direction and is arranged in the first accommodating space of the bearing platform 4 or the fixed frame 1. The cable-stayed component 5 can also be a telescopic component. When the bearing platform 4 is opened, the telescopic component is stretched or contracted to a set position. When the bearing platform 4 returns to the closed state, the telescopic component is arranged in the accommodating space of the bearing platform 4 or the fixed frame 1. The cable-stayed component 5 can also be a rope or chain component. When the bearing platform 4 is in the opened state, the rope or chain component is stretched to a set position and stopped running. One end of the rope or chain component can be provided with a counterweight structure or a friction structure, so as to enable the bearing platform 4 to be slowly opened.

[0077] 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 fall, the side of the bearing platform 4 not connected with the wall body can be provided with a safety guardrail 6 when the bearing platform 4 is in an open state. When the bearing platform 4 is opened, the guardrail 6 is automatically raised to improve the safety of the bearing platform 4. A resilient piece pneumatic telescopic device is arranged between the bearing platform 4 and the guardrail 6. Under the action of the pulling force or pushing force of the resilient piece pneumatic telescopic device, the guardrail 6 is raised to a set height and locked during the opening of the bearing platform 4. An escape personnel uses a gap 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.

[0078] The fixed frame 1 is further provided with a connecting part 8 of the backpack type slow descent device. The escape personnel wears 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 wears 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 actual use, the backpack type slow descent device realizes slow descent under a certain gravity through a friction part. The slow descent rope 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 rope 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 slow descent device on the body through the safety belt, the escape personnel can escape. 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 is 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.

[0079] 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 is used to manually restore the bearing platform 4 to a 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 restored to the initial state, the bearing platform 4 can be repeatedly used.

[0080] Specifically, the rope component can be used to connect the restoring device 3 and the bearing platform 4, that is, one end of the rope component is connected to the bearing platform 4, the other end is connected to the rope wheel of the restoring device 3, and the rope wheel is controlled by the one-way movement principle of the pawl, that is, the corresponding tool is used to rotate the rope wheel, so that the rope component is wound on the rope wheel, and the bearing platform 4 is pulled to restore to the initial state; a chain component can also be used, the chain is matched with the chain wheel, the chain is retracted by rotating the chain wheel, the retracted chain enters the accommodation space, and the bearing platform 4 is pulled to restore to the initial state and closed and 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, and the nut moves in the set direction to restore the escape platform to the initial state and lock.

[0081] 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, after wearing the safety harness, the safety harness is connected to the slow descent cable 71 of the slow descent device 7, and 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 set to be multiple, and 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 the safety harness is connected with the connection end of the slow descent device.

[0082] The slow descent device 7 can also be arranged on the fixed frame 1, and the number thereof can be set to be multiple, and the connection end 72 of the slow descent 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.

[0083] 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 fixes the slow descent device 7 to the first connecting part, and locks through the third locking part, after the escape personnel wears the safety harness, the safety harness is connected with the connection end 72 of the slow descent device, and it needs to be noted that the number of the above-mentioned first connecting part and the third locking part is set to be multiple, in the actual use process, not multiple first connecting parts and third locking parts need to be used at the same time to realize the escape function, but one escape or one escape personnel only needs to use a pair of first connecting part and third locking part, and multiple first connecting parts and third locking parts are arranged, on the one hand, to facilitate the escape personnel to fix the safety harness, and on the other hand, to facilitate multiple escape personnel to simultaneously perform the escape behavior.

[0084] The slow descent device 7 can also be provided 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 the safe position or the ground, and then takes off the escape backpack. At this time, the second escape personnel on the carrying platform 4 can use the other second connecting part to descend. When the second escape personnel descends, the connecting end 72 used by the first escape personnel is recycled to the initial position on the carrying platform 4 with the escape backpack, and can be used again by the escape personnel. In this way, during the subsequent escape of the escape personnel, repeated fixing work is not required. After wearing the escape backpack, the escape personnel can quickly escape from the dangerous environment.

[0085] 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 frame of the fixed frame 1. The guide part of the fireproof heat insulation curtain 9 is arranged on the indoor side of the side frame 11 of the fixed frame 1. After the escape personnel reaches the carrying platform 4, the fireproof heat insulation curtain 9 can be manually pulled down, so as to form a partition seal between the carrying platform 4 and the indoor side of the building. At this time, if there are still personnel who have not escaped to the carrying platform 4 in the room, the fireproof heat insulation curtain 9 can also be opened from the indoor side. After reaching the carrying platform 4, the fireproof heat insulation curtain 9 is closed again to form a partition layer, so that the space of the carrying platform 4 is safer, so as to gain more escape time.

[0086] The fireproof heat insulation curtain 9 is rotated and contracted under the shaft of the containing space by the elastic force. When the downward pulling force is greater than the elastic force, the heat insulation curtain runs downward along the two side guide parts. The heat insulation curtain runs to the 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.

[0087] 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. The slow descent device 7 can also be used in other scenes with height difference, for example, a tower crane, a mountain, a bridge, a mine or a ship.

[0088] Based on the escape platform described above, the escape platform guardrail lifting device will be described in detail as follows:

[0089] Referring to Figures 8 to 19 The present application provides an escape platform guardrail lifting device, that is, the guardrail 6 described above, which specifically comprises:

[0090] The first aspect of the application provides an escape platform guardrail lifting device, which is applied to an escape platform including a bearing platform 4 and a fixed frame 1, the bearing platform 4 being rotationally connected to the fixed frame 1; the escape platform guardrail lifting device including: a guardrail 6, the guardrail 6 being connected to three side edges of the bearing platform 4 that are not rotationally connected to the fixed frame 1, two ends of the guardrail 6 being slidingly connected to the fixed frame 1 close to the fixed frame 1; wherein the guardrail 6 can be connected to an accommodation space provided in the fixed frame 1 or outside the fixed frame 1, which is not limited herein; when an escape person is located on the bearing platform 4, the guardrail 6 is used to provide protection to prevent the escape person from falling off the bearing platform 4; a lifting part 100, the lifting part 100 being provided in the fixed frame 1 or between the bearing platform 4 and the fixed frame 1; wherein when the bearing platform 4 moves in a first direction, the guardrail 6 moves in a second direction through the lifting part 100 to achieve a distance between the guardrail 6 and the bearing platform 4 reaching a preset value; the first direction is a direction away from a room; the second direction is a direction in which the guardrail 6 is unfolded, i.e., a direction away from the bearing platform 4.

[0091] The application provides an escape platform guardrail lifting device, in the opening process of the bearing platform 4, the guardrail 6 provided around the bearing platform 4 can also be lifted simultaneously, the guardrail 6 can be lifted to a set position through the gravity of the opening of the bearing platform 4 and the lifting part 100, as shown in Figure 8 The guardrail 6 can limit its running track through a guide part when being lifted, when the bearing platform 4 is opened to a set position, the guardrail 6 is lifted to a set position through the escape platform guardrail lifting device and is self-locked, as shown in Figure 9 The escape person is provided with protection when being on the bearing platform 4, thereby improving the safety of the escape person when being on the bearing platform 4.

[0092] As shown in Figure 9 The guardrail 6 includes: a plurality of first connecting rods 61, one end of the first connecting rod 61 being rotationally connected to the bearing platform 4; a plurality of second connecting rods 62, one end of the second connecting rod 62 being rotationally connected to the first connecting rod 61 and the other end being rotationally connected to a handrail part 63; the handrail part 63 being U-shaped, two ends of the handrail part 63 being slidingly connected to the fixed frame 1. The first connecting rod 61 and the second connecting rod 62 realize the folding of the connecting rods through a hinge part provided at a connection and are hidden in an accommodation cavity of the fixed frame 1, the hinge part of the first connecting rod 61 and the second connecting rod 62 being provided with a self-locking structure, when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the first connecting rod 61 and the second connecting rod 62 realize self-locking through the self-locking structure, at this time, the first connecting rod 61 and the second connecting rod 62 cannot rotate again, thereby improving the firmness of the guardrail 6 and preventing safety hazards from occurring when the escape person holds the guardrail 6.

[0093] As shown in Figure 8 , the lifting part 100 comprises: a guide wheel 101 arranged in the accommodating space of the fixed frame 1; a cable 102, one end of which is connected to the guardrail 6 near one side of the fixed frame 1, and the other end is connected to the side of the bearing platform 4 away from the fixed frame 1 after winding around the guide wheel 101; wherein, when the bearing platform 4 rotates in the first direction, the guardrail 6 moves in the second direction through the cable 102, so that when the bearing platform 4 is perpendicular to the fixed frame 1, the distance between the guardrail 6 and the bearing platform 4 reaches a preset value; the first direction is the direction away from the indoor; the second direction is the direction of the guardrail 6 away from the bearing platform 4. In this embodiment, during the opening of the bearing platform 4, the guardrail 6 arranged around the bearing platform 4 can also be lifted simultaneously, and the guardrail 6 can be lifted to the set position through the gravity of the opening of the bearing platform 4 through the cable 102, as shown in Figure 8 , the guardrail 6 can limit its running track when it is lifted, and the guardrail 6 is lifted to the set position and self-locked through the escape platform guardrail lifting device when the bearing platform 4 is opened to the set position, as shown in Figure 9 , to provide protection for the escape personnel on the bearing platform 4, thereby improving the safety of the escape personnel on the bearing platform 4.

[0094] As shown in Figure 9 , the device further comprises: a guide component 103 arranged in the accommodating space, one end of the guide component 103 being connected to one side of the fixed frame 1 and the other end being connected to the other side of the fixed frame 1; the guide component 103 is provided with two, and the distance between the two guide components 103 corresponds to the width of the handrail part 63; a guide device 104, one end of the guide device 104 being sleeved on the guide component 103, so that the guide device 104 is slidingly connected to the guide component 103; the other end of the guide device 104 is rotatably connected to the end of the handrail part 63. The guide device 104 is provided with two sets, which are movably installed on the guide components 103 near the fixed frame 1 on the left side of the handrail part 63 and the right side of the handrail part 63, and are rotatably connected to the handrail part 63 through the guide device 104, which can hide the guardrail 6 in the accommodating cavity of the fixed frame 1 after folding through the first connecting rod 61 and the second connecting rod 62, and can realize the automatic lifting function of the guardrail 6, and the guide device 104 can become a connecting and fixing component between the guardrail 6 and the fixed frame 1 after lifting, thereby enhancing the safety of the guardrail 6.

[0095] As shown in Figure 9As shown, the lifting part 100 comprises: at least one first pull rod 105, one end of the first pull rod 105 being rotationally connected with the guide wheel 101; at least one second pull rod 106, one end of the second pull rod 106 being rotationally connected with the other end of the first pull rod 105, and the other end being rotationally connected with the handrail part 63; wherein, when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the first pull rod 105 and the second pull rod 106 are located in the same straight line direction. It can be understood that, through the arrangement of the first pull rod 105 and the second pull rod 106, the guardrail 6 can be made more firm, and the bearing capacity of the bearing platform 4 can be improved; when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the first pull rod 105 and the second pull rod 106 are located in the same straight line direction, so as to disperse part of the bearing capacity of the bearing platform 4. The number of the first pull rod 105 and the second pull rod 106 is set according to specific circumstances, on the premise that the first pull rod 105 and the second pull rod 106 can be folded and hidden in the accommodating cavity of the fixed frame 1.

[0096] In this embodiment, the lifting part 100 comprises: at least one elastic member 107, one end of the elastic member 107 being connected with the bearing platform 4, and the other end being connected with the guardrail 6; one end of the elastic member 107 can also be connected with the handrail part 63, and the other end being connected with the guardrail 6; for example, one end of the elastic member 107 is connected with the bearing platform 4, and the other end is connected with the first connecting rod 61 or the second connecting rod 62, as shown in Figures 12 to 15 For example, one end of the elastic member 107 is connected with the bearing platform 4, and the other end is connected with the first connecting rod 61 or the second connecting rod 62, as shown in Figure 10 For example, one end of the elastic member 107 is connected with the bearing platform 4, and the other end is connected with the first connecting rod 61 or the second connecting rod 62, as shown in Figure 11 For example, one end of the elastic member 107 is connected with the bearing platform 4, and the other end is connected with the first connecting rod 61 or the second connecting rod 62, as shown in Figure 10As shown, the elastic member 107 and the guardrail 6 are hidden in the accommodating space of the fixed frame 1 at this time, and the fixed frame 1 limits the extension space of the first connecting rod 61 and the second connecting rod 62; when the bearing platform 4 is opened, the first connecting rod 61 and the second connecting rod 62 are released from the accommodating space of the fixed frame 1, and the elastic potential energy stored by the elastic member 107 is released, as shown in Figure 11 As shown, the first connecting rod 61 and the second connecting rod 62 are rotated and extended to open at the hinge position under the action of the elastic force, and the handrail part 63 connected by the first connecting rod 61 and the second connecting rod 62 drives other connecting rods to open, and when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the self-locking structure acts to form a lock between the second connecting rod 62 and the handrail part 63, limit the freedom of the hinge position, and realize the safety self-locking of the guardrail. The arrangement of the elastic member 107 can improve the unfolding speed of the guardrail 6 and the firmness of the guardrail 6.

[0097] As shown in Figure 11 As shown, a plurality of elastic members 107 can be arranged between the guardrail 6 and the bearing platform 4, and the elastic members 107 arranged between the guardrail 6 and the bearing platform 4 can be arranged in parallel. By arranging the elastic members 107 between the guardrail 6 and the bearing platform 4 in parallel, the installation speed and convenience of the elastic members 107 can be improved. It can be understood that different elastic members 107 have different elastic coefficients, and in order to ensure the smooth unfolding of the guardrail 6, the elastic member 107 needs to be in a stretched state when the guardrail 6 is not unfolded, and the elastic member 107 needs to be in a normal state or a compressed state when the guardrail 6 is unfolded. Therefore, by arranging elastic members 107 with the same length and the same elastic coefficient between the handrail part 63 and the bearing platform 4, the elastic member 107 and the connection between the second connecting rod 62 or the first connecting rod 61 and the second connecting rod 62 are arranged in parallel to ensure uniform stress, thereby further ensuring the stability of the structure of the guardrail 6.

[0098] In this embodiment, the lifting part 100 further includes an execution part 108, one end of which is connected to the support platform 4 and the other end to the guardrail 6. For example, the lifting part 100 includes a first execution part 1081, one end of which is rotatably connected to the support platform 4 and the other end to the handrail 63. One end of the first execution part 1081 is connected to the support platform 4, and the other end is connected to the handrail 63. In this embodiment, a cylinder is used as an example of the first execution part 1081. When the support platform 4 is closed, the guardrail 6 folds through the first connecting rod 61 and the second connecting rod 62, causing the first connecting rod 61 and the second connecting rod 62 to tend to overlap. At this time, the cylinder is in a compressed state. Figure 16 As shown, at this time, the first actuator 1081 and the guardrail 6 are hidden within the accommodating space of the fixed frame 1, and the fixed frame 1 restricts the extension and retraction space of the first connecting rod 61 and the second connecting rod 62; when the bearing platform 4 is opened, the first connecting rod 61 and the second connecting rod 62 are released from the accommodating space of the fixed frame 1, and the cylinder, due to the presence of air pressure, rotates and extends the first connecting rod 61 and the second connecting rod 62 at the hinge position under the action of air pressure, as shown. Figure 17 As shown, the handrail 63, connected by the first link 61 and the second link 62, drives the other links to open. When the distance between the guardrail 6 and the supporting platform 4 reaches a preset value, the self-locking structure activates, locking the second link 62 and the handrail 63, restricting the freedom of their hinge position, and achieving a safe self-locking of the guardrail. The first actuator 1081 can improve the unfolding speed of the guardrail 6 and enhance its sturdiness.

[0099] For example, the lifting part 100 includes a second actuating part 1082, one end of which is rotatably connected to the bearing platform 4, and the other end is connected to the first connecting rod 61 or the second connecting rod 62. One end of the second actuating part 1082 is connected to the bearing platform 4, and the other end is connected to the connection between the first connecting rod 61 and the second connecting rod 62. In this embodiment, a cylinder is used as an example of the second actuating part 1082. When the bearing platform 4 is closed, the guardrail 6 is folded by the first connecting rod 61 and the second connecting rod 62 so that the first connecting rod 61 and the second connecting rod 62 tend to overlap. At this time, the cylinder is in a compressed state, such as... Figure 18As shown, the second execution part 1082 and the guardrail 6 are hidden in the containing space of the fixed frame 1 at this time, and the fixed frame 1 limits the extension space of the first connecting rod 61 and the second connecting rod 62; when the bearing platform 4 is opened, the first connecting rod 61 and the second connecting rod 62 are released from the containing space of the fixed frame 1, and the cylinder rotates and extends the first connecting rod 61 and the second connecting rod 62 at the hinge position under the action of the gas pressure, like Figure 19 As shown, the handrail part 63 connected by the first connecting rod 61 and the second connecting rod 62 drives other connecting rods to open, and when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the self-locking structure acts to form a lock between the second connecting rod 62 and the handrail part 63, limiting the freedom of the hinge position, realizing the safety self-locking of the guardrail. The setting of the second execution part 1082 can improve the unfolding speed of the guardrail 6 and the firmness of the guardrail 6.

[0100] In this embodiment, the first execution part 1081 and the second execution part 1082 include any one of a cylinder, an oil cylinder, a rack, or an electric push rod motor. The cylinder converts the energy of gas into mechanical movement by compressing gas. When the gas is compressed and released, it will push the piston to move in the cylinder, thereby generating linear motion or rotary motion. The working principle of the oil cylinder is based on Pascal's principle, that is, the pressure is equal everywhere when the liquid transmits pressure in a closed container. When hydraulic oil is pumped into the oil cylinder, it will generate pressure and push the piston or similar parts to move, thereby generating linear motion. The working principle of the electric push rod motor is that a pair of screw nuts are driven by a motor through gear reduction. This rotary motion is converted into linear motion, and the push rod action is completed by using the forward and reverse rotation of the motor. By controlling the current size and direction of the motor, the speed and direction of the push rod movement can be accurately controlled.

[0101] In this embodiment, the device further includes a self-locking structure at the connection between the second connecting rod 62 and the handrail part 63; when the distance between the guardrail 6 and the bearing platform 4 reaches a preset value, the second connecting rod 62 realizes locking between the locking part of the self-locking structure and the handrail part 63. The locking part at the connection between the second connecting rod 62 and the handrail part 63 can prevent the guardrail 6 from rising when the self-locking structure is displaced by elastic force or gravity when the guardrail 6 rises to the set position, and the guardrail 6 can be folded when the external force on the handrail part 63 reaches a preset value.

[0102] The second aspect of the present application provides an escape platform, comprising: a bearing platform 4 and a fixed frame 1; the fixed frame 1 is arranged in the opening of the building facade, and the bearing platform 4 is rotationally connected to the fixed frame 1; when the bearing platform 4 is in a closed state, the bearing platform 4 is clamped in the fixed frame to block the opening; when the bearing platform 4 is in an 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; the escape platform further comprises: an escape platform guardrail lifting device as described in any of the above embodiments; when the bearing platform 4 moves in a first direction, the guardrail 6 moves in a second direction through the escape platform guardrail lifting device, so that when the bearing platform 4 is perpendicular to the fixed frame 1, the distance between the guardrail 6 and the bearing platform 4 reaches a preset value; the first direction is a direction away from the indoor; the second direction is a direction in which the guardrail 6 moves away from the bearing platform 4. The effect of the above escape platform embodiment can be referred to the above description of the components and effects of the escape platform, which will not be repeated here.

[0103] The above detailed description is further detailed for the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the present application shall be included in the protection scope of the present application.

Claims

1. An escape platform guardrail lifting device, applied to an escape platform including a support platform and a fixed frame, wherein the support platform is rotatably connected to the fixed frame; characterized in that, include: Guardrails, which are connected to three sides of the support platform that are not connected to the fixed frame; A lifting section is disposed within the fixed frame or between the supporting platform and the fixed frame; When the supporting platform moves in the first direction, the guardrail moves in the second direction via the lifting part to achieve a preset distance between the guardrail and the supporting platform; the first direction is the direction away from the indoor environment; the second direction is the direction in which the guardrail unfolds.

2. The escape platform guardrail lifting device according to claim 1, characterized in that, The lifting portion includes: Guide wheel, the guide wheel is disposed on the fixed frame; The cable has one end connected to the side of the guardrail near the fixed frame, and the other end, after being wound around the guide wheel, is connected to the side of the bearing platform away from the fixed frame. When the supporting platform rotates in the first direction, the guardrail moves along the second direction via the cable to unfold the guardrail; the first direction is the direction away from the indoor area; the second direction is the direction in which the guardrail unfolds.

3. The escape platform guardrail lifting device according to claim 1, characterized in that, The device further includes: A guide component is disposed on the fixed frame, one end of the guide component is connected to one side of the fixed frame, and the other end is connected to the other side of the fixed frame; A guiding device, one end of which is connected to the guiding component, thereby connecting the guiding device to the guiding component; the other end of which is connected to the handrail.

4. The escape platform guardrail lifting device according to claim 2, characterized in that, The lifting portion includes: At least one first pull rod, one end of which is connected to the guide wheel; At least one second tie rod, one end of which is connected to the other end of the first tie rod, and the other end of which is connected to the guardrail; Specifically, when the distance between the guardrail and the supporting platform reaches a preset value, the angle between the first tie rod and the second tie rod reaches a preset angle value.

5. The escape platform guardrail lifting device according to claim 1, characterized in that, The lifting portion includes: At least one elastic element, one end of which is connected to the bearing platform and the other end of which is connected to the guardrail; Specifically, when the distance between the guardrail and the supporting platform is less than a preset value, the elastic element is under stress.

6. The escape platform guardrail lifting device according to claim 5, characterized in that, Multiple sets of elastic elements can be installed between the guardrail and the supporting platform.

7. The escape platform guardrail lifting device according to claim 1, characterized in that, The lifting section also includes: An execution unit, one end of which is connected to the support platform and the other end of which is connected to the guardrail.

8. The escape platform guardrail lifting device according to claim 7, characterized in that, The execution unit includes: Any one of the following: cylinder, hydraulic cylinder, rack and pinion, or electric linear actuator motor.

9. The escape platform guardrail lifting device according to claim 1, characterized in that, The guardrail includes: Several first links, one end of each first link being connected to the support platform; Several second links, one end of which is connected to the first link and the other end of which is connected to the handrail.

10. The escape platform guardrail lifting device according to claim 9, characterized in that, The device further includes: A self-locking structure located at the connection between the second link and the handrail; When the distance between the guardrail and the supporting platform reaches a preset value, the second link locks with the handrail using the locking component of the self-locking structure. A self-locking structure located at the connection between the first link and the second link; When the guardrail is extended to a preset value, the first link is locked to the second link using the locking component of the self-locking structure.

11. An escape platform, characterized in that, include: Supporting platform and fixed frame; The fixed frame is set in an opening in the building facade, and the supporting platform is rotatably connected to the fixed frame; When the support platform is in the closed state, the support platform is set inside 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 escape platform also includes: An escape platform guardrail lifting device as described in at least any one of claims 1 to 10 above; When the support platform moves in the first direction, the guardrail moves in the second direction via the escape platform guardrail lifting device, so that the distance between the guardrail and the support platform reaches a preset value; the first direction is the direction away from the indoor environment; the second direction is the direction in which the guardrail moves away from the support platform.

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