A high-rise escape device

Abstract

The application belongs to the technical field of high-rise building escape, and particularly relates to a high-rise building escape device, which comprises a window fixing device, a slow descent device, a motor, and a damping component. The slow descent device comprises a support, wherein the support is internally provided with a cavity, and the support is provided with through holes communicating with the cavity at two ends. The motor is installed on the support, and the support is further provided with a rolling element which is connected with a power output shaft of the motor. The slow descent rope is arranged in the support, one end of the slow descent rope is connected with the window fixing device, and the rolling element is in rolling cooperation with the slow descent rope. The damping component comprises a coil, an iron core column, a convex plate and a concave plate. The coil is electrically connected with an output circuit of the motor, and the coil is connected with the support. The iron core column is arranged in the coil. The convex plate and the concave plate are oppositely arranged in the support and are distributed on two sides of the slow descent rope. One end of the iron core column is connected with the convex plate, and the iron core column can drive the convex plate to move close to or away from the concave plate. The application can dynamically and adaptively adjust the damping force according to the real-time descending speed, and overcomes the bias of the traditional technology.

Description

Technical Field

[0001] This application relates to the field of high-rise building escape technology, and in particular to a high-rise building escape device. Background Technology

[0002] In the event of emergencies such as fires or earthquakes in high-rise buildings, elevators are usually prohibited from use due to power outages or the chimney effect. Escape staircases are prone to congestion and trampling in crowded and smoke-filled environments, resulting in low escape efficiency and seriously threatening people's lives.

[0003] Various high-rise escape devices have been proposed in the existing technology, mainly relying on escape descent devices to help people escape from windows. Currently, these devices primarily control the descent speed through mechanical friction damping or hydraulic damping. Common descent devices have rollers inside that work with the descent rope. When the user descends, the rollers roll on the descent rope, generating damping force through structures such as friction discs, keeping the descent speed within a safe range. This damping force is usually fixed or only changes monotonically with the rotation speed, making it difficult to dynamically and adaptively adjust according to the actual load and descent speed. Summary of the Invention

[0004] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a high-rise escape device capable of dynamically and adaptively adjusting damping force based on real-time descent speed, overcoming the biases of traditional technologies.

[0005] A high-rise building escape device includes: Window fixing device, used for installation at windows; Descending device, including A bracket, wherein a cavity is provided inside the bracket, and through holes are provided at both ends of the bracket to communicate with the cavity; The motor is mounted on the bracket, and the bracket is also provided with a rolling element, which is connected to the power output shaft of the motor. A descent rope is inserted into the bracket through the through hole. One end of the descent rope is connected to the window fixing device. The rolling element rolls in cooperation with the descent rope and is used to roll along the descent rope during descent. The damping component includes a coil, a core post, a convex plate, and a concave plate. The coil is electrically connected to the output circuit of the motor and is connected to the support. The core post passes through the inside of the coil. The convex plate and the concave plate are arranged opposite each other inside the support and distributed on both sides of the descent rope. One end of the core post extends from inside the coil and connects to the convex plate. The geometric center of the core post is offset from the geometric center of the coil along the central axis of the coil. The geometric center of the core post is close to the convex plate, and the geometric center of the coil is close to the concave plate. The core post can drive the convex plate to move closer to or away from the concave plate to achieve clamping or loosening of the descent rope.

[0006] In an optional or preferred embodiment, the window fixing device includes: A telescopic bracket, wherein a first top locking bracket is installed at the top of the telescopic bracket for locking onto the inside of the top edge of the window, and a first bottom locking bracket is installed at the bottom of the telescopic bracket for locking onto the inside of the bottom edge of the window; A foot support frame includes a bottom support rod, a connecting rod, and a foot pedal. One end of the bottom support rod is hinged to the bottom end of the telescopic bracket, one end of the connecting rod is hinged to the bottom support rod, and the foot pedal is hinged to the other end of the connecting rod. A limiting plate is provided on the foot pedal. When the foot support rod is rotated to a horizontal position, the limiting plate abuts against the connecting rod to form a limit.

[0007] In an optional or preferred embodiment, the window fixing device further includes a side support rod, one end of which is hinged to the telescopic bracket, and the other end is used to support the side of the window. A support block is installed on the side of the side support rod that is used to support the side of the window, and friction texture is provided on the side of the support block that is used to contact the side of the window.

[0008] In an optional or preferred embodiment, the bottom support rod is provided with a second bottom locking clip, which is used to lock onto the outside of the bottom edge of the window.

[0009] In an optional or preferred embodiment, the top of the telescopic bracket is hinged to a top support rod, and the top support rod is provided with a second top clip for locking onto the outside of the top edge of the window.

[0010] In an optional or preferred embodiment, the telescopic support includes a scissor bar and two telescopic rods arranged side by side at intervals. The scissor bar is connected between the two telescopic rods. One of the telescopic rods is provided with a sliding groove in which two sliders are fitted. One end of the scissor bar is hinged to the two sliders, and the other end is hinged to the other telescopic rod.

[0011] In an optional or preferred embodiment, the damping component further includes an outer sleeve, an inner sleeve, a first end plate, and a second end plate. The inner sleeve is disposed inside the outer sleeve, and the coil is disposed between the inner sleeve and the outer sleeve. The first end plate is installed at the upper end of the outer sleeve and the inner sleeve, and the second end plate is installed at the lower end of the outer sleeve and the inner sleeve. The first end plate has a first through hole, and the second end plate has a second through hole. The iron core column passes through the first through hole and the second through hole.

[0012] In an optional or preferred embodiment, the damping component further includes a mounting plate and a crossbar. The mounting plate is fixedly connected to the bracket, and the first end plate is fixedly connected to the mounting plate. The mounting plate has a third through hole for the iron core column to pass through. The iron core column passes through the third through hole and is connected to the crossbar. The crossbar is connected to the convex plate. The crossbar and the convex plate are located on opposite sides of the mounting plate. The mounting plate has an assembly hole. The crossbar and the convex plate are connected by a connecting block, and the connecting block is slidably assembled in the assembly hole.

[0013] In an optional or preferred embodiment, a manual pressure plate is further included, one end of which is hinged to the bracket, and the other end of which is cantilevered. The manual pressure plate is located outside the crossbar, and a manual pull rope is provided at the cantilevered end of the manual pressure plate. The manual pressure plate is used to press down the crossbar to make the iron core column move axially in the coil.

[0014] In an optional or preferred embodiment, the mounting plate is provided with guide holes distributed on both sides of the assembly hole, a guide rod is assembled in the guide hole, the guide rod is fixedly connected to the protruding plate, and the manual pressure plate is provided with clearance holes for cooperating with the guide rod.

[0015] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects: During use, the user fixes the window fixing device to the window, puts on the safety belt, connects one end of the safety belt to the descent device, connects one end of the descent rope to the window fixing device, and then jumps out of the window, achieving a slow descent through the descent device. The working principle of the descent device is as follows: In the initial unpowered state, the iron core column is not centered on the coil, but is offset towards the end near the convex plate. When the descent speed is too fast, the rolling speed of the rolling element increases, thereby driving the motor to reverse and accelerate. Thus, the power generation of the motor also increases, and the increased current increases the magnetic field generated by the coil. This magnetic field interacts with the iron core column, generating a strong electromagnetic pull. Since the geometric center of the iron core column is offset towards the convex plate, the iron core column is subjected to an electromagnetic pull towards the geometric center of the coil from the initial position. This pull drives the iron core column to move the convex plate closer to the concave plate. When the convex plate and the concave plate clamp the descent rope together, friction is generated, which strongly brakes the descent rope, forcing the descent speed to decrease. Conversely, when the speed decreases to a certain value, the motor's power generation weakens, the electromagnetic force of the coil weakens, and the convex plate moves away from the concave plate under the elastic force of the descent rope, releasing the clamping force and restoring the descent speed. The damping force of this type of descent device is no longer a fixed value, but a damping force that can be dynamically and adaptively adjusted according to the real-time descent speed, overcoming the technical bias of traditional mechanical friction descent devices having fixed damping force and poor adaptability. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the high-rise escape device provided in this application, installed at a window. Figure 2 yes Figure 1 The diagram shown illustrates the installation of a window fixing device at the window in the embodiment. Figure 3 yes Figure 1 A schematic diagram from another perspective showing the window fixing device installed at the window in the illustrated embodiment; Figure 4 yes Figure 1 A schematic diagram of the window fixing device in the embodiment shown; Figure 5 yes Figure 4 A structural schematic diagram from another perspective of the embodiment shown; Figure 6 This is a schematic diagram of the structure of the descent device provided in the embodiments of this application; Figure 7 yes Figure 6 The diagram shown is a schematic of the structure after removing the descent rope in the embodiment shown. Figure 8 yes Figure 6A structural schematic diagram from another perspective of the embodiment shown; Figure 9 yes Figure 7 A cross-sectional view of the embodiment shown; Figure 10 yes Figure 7 A longitudinal sectional view of the embodiment shown; Figure 11 yes Figure 7 Partial structural cross-sectional view of the embodiment shown.

[0017] Figure label: 10. Window fixing device; 11. Telescopic bracket; 111. Scissor bar; 112. Telescopic rod; 113. First top locking bracket; 114. First bottom locking bracket; 12. Foot support frame; 121. Bottom support rod; 122. Connecting rod; 123. Foot pedal; 124. Limiting plate; 125. Second bottom locking bracket; 126. Second side plate; 127. Second limiting pin; 128. Handle; 13. Side support rod; 131. Support block; 132. Friction texture; 14. Top support rod; 141. Second top locking bracket; 142. First side plate; 143. First limiting pin; 15. Safety hanging ring; 20. Decelerator; 21. Bracket; 211. First through hole; 212. 213. Two through holes; 214. First rectangular plate; 215. Second rectangular plate; 216. First rectangular sleeve plate; 217. Second rectangular sleeve plate; 22. Motor; 23. Descending rope; 24. Resistance device; 241. Coil; 242. Iron core column; 243. Convex plate; 244. Concave plate; 245. Outer sleeve; 246. Inner sleeve; 247. First end plate; 248. Second end plate; 249. Mounting plate; 250. Crossbar; 251. Connecting block; 252. Guide rod; 253. Guide sleeve; 261. Roller; 271. Manual pull rope; 272. Clearance hole; 1121. Slide groove; 1122. Slider; 25. Audible and visual alarm; 26. Roller assembly; 27. Manual pressure plate; 28. Hook. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] In the event of emergencies such as fires or earthquakes in high-rise buildings, elevators are usually prohibited from use due to power outages or the chimney effect. Escape staircases are prone to congestion and trampling in crowded and smoke-filled environments, resulting in low escape efficiency and seriously threatening people's lives.

[0025] Various high-rise escape devices have been proposed in the existing technology, mainly relying on escape descent devices to help people escape from windows. Currently, these devices primarily control the descent speed through mechanical friction damping or hydraulic damping. Common descent devices have rollers inside that work with the descent rope. When the user descends, the rollers roll on the descent rope, generating damping force through structures such as friction discs, keeping the descent speed within a safe range. This damping force is usually fixed or only changes monotonically with the rotation speed, making it difficult to dynamically and adaptively adjust according to the actual load and descent speed.

[0026] Reference Figures 1 to 11 This application provides a high-rise escape device, including a window fixing device 10 and a slow descent device 20.

[0027] The window fixing device 10 is used for installation at the window. The deceleration device 20 includes a bracket 21, a motor 22, a deceleration rope 23, and a damping component 24. The bracket 21 has an internal cavity, and through holes at both ends of the bracket 21 connect to the cavity. The motor 22 is mounted on the bracket 21. A rolling element is also provided inside the bracket 21, and the rolling element is connected to the power output shaft of the motor 22. The deceleration rope 23 passes through the through hole inside the bracket 21, and one end of the deceleration rope 23 is connected to the window fixing device 10. The rolling element rolls in cooperation with the deceleration rope 23 to roll along the deceleration rope 23 during descent. The damping component 24 includes a coil 241, an iron core column 242, a convex plate 243, and a concave plate 244. The coil 241... 1 is electrically connected to the output circuit of motor 22. Coil 241 is connected to bracket 21. Iron core column 242 is inserted inside coil 241. Convex plate 243 and concave plate 244 are arranged opposite to each other inside bracket 21 and distributed on both sides of descent rope 23. One end of iron core column 242 extends out from inside coil 241 and is connected to convex plate 243. The geometric center of iron core column 242 is offset from the geometric center of coil 241 along the central axis of coil 241. The geometric center of iron core column 242 is close to convex plate 243, and the geometric center of coil 241 is close to concave plate 244. Iron core column 242 can drive convex plate 243 to move closer to or away from concave plate 244 to achieve clamping or loosening of descent rope 23.

[0028] During use, the user secures the window fixing device 10 to the window, puts on the safety belt, connects one end of the safety belt to the descent device 20, and connects one end of the descent rope 23 to the window fixing device 10. Then, the user jumps out of the window and descends slowly using the descent device 20. The working principle of the descent device 20 is as follows: In the initial unpowered state, the iron core column 242 is not centered on the coil 241, but is offset towards the end near the convex plate 243. When the descent speed is too fast, the rolling speed of the rolling element increases, thereby driving the motor 22 to reverse and accelerate. This increases the power generation of the motor 22, and the increased current increases the magnetic field generated by the coil 241. This magnetic field interacts with the iron core column 242, generating a strong electromagnetic pull. Because the geometric center of the iron core column 242 is offset towards the convex plate 243, the iron core column 242 is subjected to an electromagnetic pull towards the geometric center of the coil 241 from its initial position. The pulling force drives the iron core column 242 to move the convex plate 243 closer to the concave plate 244. When the convex plate 243 and the concave plate 244 clamp the descent rope 23 together, friction is generated, which strongly brakes the descent rope 23, forcing the descent speed to decrease. Conversely, when the speed decreases to a certain value, the power generation of the motor 22 weakens, the electromagnetic force of the coil 241 weakens, and the convex plate 243 moves away from the concave plate 244 under the action of the elastic force of the descent rope 23, the clamping force is released, and the descent speed is restored. The damping force of the descent device 20 designed in this way is no longer a fixed value, but a damping force that can be dynamically and adaptively adjusted according to the real-time descent speed, overcoming the technical bias of the fixed damping force and poor adaptability of the traditional mechanical friction descent device 20.

[0029] Reference Figures 2 to 5 The window fixing device 10 includes a telescopic bracket 11 and a foot support bracket 12.

[0030] The telescopic bracket 11 includes a scissor lift 111 and two parallel telescopic rods 112 spaced apart. The scissor lift 111 is connected between the two telescopic rods 112. In this application, the telescopic rod 112 is a sleeve-type telescopic rod, which includes a square outer tube and a square inner tube. The square inner tube can slide inside the square outer tube. The square outer tube has a row of pin holes, and the square inner tube has a pin hole. When the square inner tube is adjusted to the correct position, the pin hole on the square outer tube aligns with the pin hole on the square inner tube, and then a pin is inserted to lock it in place.

[0031] The scissor lift 111 is similar to the scissor mechanism in a scissor-type lifting mechanism, consisting of two connecting rods hinged together. One of the telescopic rods 112 has a groove 1121, in which two sliders 1122 are fitted. One end of the scissor lift 111 is hinged to the two sliders 1122, and the other end is hinged to the other telescopic rod 112. By setting the groove 1121 and the sliders 1122, the scissor lift 111 can slide smoothly during extension and retraction. In this way, the telescopic rod 112 can not only extend or shorten in the vertical direction, but also expand or retract in the horizontal direction via the scissor lift 111, making the telescopic support 11 more flexible.

[0032] Specifically, the slide groove 1121 is set on the square outer tube of the telescopic rod 112.

[0033] To facilitate positioning of the telescopic bracket 11 after it has been extended or retracted, in some embodiments, a first limiting hole is provided on the slider 1122, and a row of second limiting holes is provided inside the slide groove 1121. These second limiting holes are spaced apart along the length of the telescopic rod 112. Limiting pins are inserted into the first and second limiting holes. When the telescopic bracket 11 has been extended or retracted, the limiting pins are inserted into the aligned first and second limiting holes to lock the slider 1122.

[0034] Multiple safety loops 15 are provided on the telescopic support 11 for attaching hooks to the user's seat belt. The safety loops 15 can be welded or riveted to the telescopic pole 112.

[0035] The telescopic bracket 11 has a top end and a bottom end that are arranged opposite each other along the height direction, and the distance between the top end and the bottom end can vary. The height direction of the telescopic bracket 11 is the telescopic direction of its extension and retraction. A first top locking bracket 113 is installed at the top end of the telescopic bracket 11, which is used to lock onto the inner side of the top edge of the window. A first bottom locking bracket 114 is installed at the bottom end of the telescopic bracket 11, which is used to lock onto the inner side of the bottom edge of the window.

[0036] Specifically, a first top clip 113 is installed at the top of each of the two telescopic rods 112, and a first bottom clip 114 is installed at the bottom of each of the two telescopic rods 112. Both the first top clip 113 and the first bottom clip 114 are L-shaped, allowing them to securely engage with the inner sides of the upper and lower edges of the window. By setting the first top clip 113 and the first bottom clip 114, the telescopic bracket 11 can be stably fixed to the upper and lower ends of the window, providing basic support for the entire device. This clip-on fixing structure eliminates the need for drilling or using expansion bolts, greatly simplifying the installation process and improving installation efficiency.

[0037] The foot support frame 12 includes a bottom support rod 121, a connecting rod 122, and a foot pedal 123. One end of the bottom support rod 121 is hinged to the bottom end of the telescopic bracket 11, and the bottom support rod 121 can rotate relative to the telescopic bracket 11. One end of the connecting rod 122 is hinged to the bottom support rod 121, and the connecting rod 122 can rotate relative to the bottom support rod 121. The foot pedal 123 is hinged to the other end of the connecting rod 122, and the foot pedal 123 can rotate relative to the connecting rod 122. A limiting plate 124 is provided on the foot pedal 123. When the bottom support rod 121 rotates to a horizontal position, the limiting plate 124 abuts against the connecting rod 122 to form a limit, thereby locking the foot pedal 123 in the horizontally unfolded state. The foot support frame 12 can be quickly unfolded to form a stable foot platform when needed, and can also be folded up to reduce the overall volume when stored, making it easy to carry and store.

[0038] Specifically, a bottom support rod 121 is installed at the bottom of each of the two telescopic rods 112 of the telescopic bracket 11. A connecting rod 122 is hinged to the middle of each bottom support rod 121, and the foot pedal 123 is hinged between the bottoms of the two connecting rods 122.

[0039] When using the window fixing device 10 of this application, firstly, the length of the telescopic bracket 11 is adjusted according to the height of the window, so that the first top clip 113 is clipped on the inner side of the top edge of the window and the first bottom clip 114 is clipped on the inner side of the bottom edge of the window, thereby fixing the telescopic bracket 11 inside the window. Then, the bottom support rod 121 of the foot support bracket 12 is rotated to a horizontal position, then the connecting rod 122 is rotated to a vertical position, and then the foot pedal 123 is rotated to a horizontal position. At this time, the limiting plate 124 abuts against the connecting rod 122, locking the foot pedal 123 in a horizontal state, so that the foot pedal 123 can be stably held below the outside of the window. After the escapee comes out of the window, he steps on the foot pedal 123 and escapes through the window through the descent device 20.

[0040] Thanks to the retractable support bracket 11, this device can adapt to windows of different heights, greatly improving its versatility. Furthermore, since the retractable support bracket 11 is extendable and the foot support bracket 12 is foldable, the device can be opened when in use and folded away for storage when not in use. In addition, the device can be quickly installed and deployed without any tools, making it easy to operate and ideal for rapid escape in emergency situations.

[0041] In some embodiments, the window fixing device 10 of the escape device further includes a side support rod 13. One end of the side support rod 13 is hinged to the telescopic bracket 11, and the other end is used to support the side of the window. The side support rod 13 can further improve the stability of the entire device inside the window. After the telescopic bracket 11 is fixed to the upper and lower ends of the window, the side support rod 13 is rotated and unfolded to the side, so that the end of the side support rod 13 abuts against the side wall of the window, thereby preventing the entire device from swaying in the horizontal direction.

[0042] Specifically, two side support rods 13 can be configured, each hinged to the square outer tube of one of the two telescopic rods 112. Each side support rod 13 can be adjusted in length and width according to the width of the window to accommodate windows of different widths. The telescopic structure of the side support rod 13 can adopt a threaded structure to adjust the telescopic length of the side support rod 13. Specifically, the side support rod 13 can be configured as a circular outer tube and a circular inner tube, with the circular inner tube threadedly connected to the circular outer tube. By rotating the circular outer tube, the circular outer tube can be axially extended and retracted outside the circular inner tube, thereby achieving the function of adjusting the length.

[0043] In this way, regardless of how the width of the window changes, the side support rod 13 can be reliably supported on the side walls on both sides of the window.

[0044] Furthermore, a support block 131 is installed on one end of the side support rod 13 for supporting the side of the window. Friction grooves 132 are provided on the side of the support block 131 that contacts the side of the window. The support block 131 increases the contact area between the side support rod 13 and the side of the window, effectively preventing the side of the window from being damaged. At the same time, the friction grooves 132 on the support block 131 also increase the friction between the support block 131 and the side of the window.

[0045] In some embodiments, the bottom support rod 121 is provided with a second bottom latch 125. The second bottom latch 125 is used to latch onto the outer edge of the bottom edge of the window. When the bottom support rod 121 is rotated to a horizontal position, the second bottom latch 125 is precisely latched onto the outer edge of the bottom edge of the window.

[0046] Specifically, each of the two bottom support rods 121 has a second bottom locking bracket 125 at its bottom center. The second bottom locking bracket 125 has an L-shaped structure, and its placement complements that of the first bottom locking bracket 114. The first bottom locking bracket 114 is secured to the inner side of the bottom edge of the window, while the second bottom locking bracket 125 is secured to the outer side of the bottom edge of the window. Together, they securely clamp the bottom of the telescopic bracket 11 to the bottom edge of the window. This double-sided clamping design effectively prevents the bottom of the telescopic bracket 11 from shifting or coming off.

[0047] In addition, handles 128 are provided on both bottom support rods 121 to make the whole device easy to take out after being folded up.

[0048] In some embodiments, the top of the telescopic bracket 11 is hinged to a top support rod 14, and the top support rod 14 is provided with a second top latch 141. The second top latch 141 is used to lock onto the outer edge of the top edge of the window. When the top support rod 14 is rotated to a horizontal position, the second top latch 141 is precisely locked onto the outer edge of the top edge of the window.

[0049] Specifically, top support rods 14 are installed on the top of both telescopic rods 112 of the telescopic bracket 11. A second top clip 141 is installed at the end of each top support rod 14. The second top clip 141 has an L-shaped structure and complements the first top clip 113. The first top clip 113 is clipped onto the inner side of the top edge of the window, while the second top clip 141 is clipped onto the outer side of the top edge of the window. Together, they firmly clamp the top of the telescopic bracket 11 to the top edge of the window. This double-sided clamping structure at both the top and bottom significantly improves the stability and safety of the device.

[0050] The top support rod 14 is provided with a first side plate 142, and the first side plate 142 is provided with a first pin hole. The top of the telescopic bracket 11 is provided with a second pin hole, that is, each telescopic rod 112 is provided with a first pin hole on its side. When the top support rod 14 is rotated to the horizontal position, the first pin hole and the second pin hole are aligned, and a first limiting pin 143 is inserted into the aligned first pin hole and the second pin hole to lock the top support rod 14 in the horizontal position.

[0051] In some embodiments, the bottom support rod 121 is provided with a second side plate 126, and the second side plate 126 is provided with a third pin hole. The bottom of the telescopic bracket 11 is provided with a fourth pin hole, that is, each telescopic rod 112 of the telescopic bracket 11 is provided with a third pin hole on its bottom side. When the two bottom support rods 121 are rotated to the horizontal position, the third pin hole and the fourth pin hole are aligned, and a second limiting pin 127 is inserted into the aligned third pin hole and the fourth pin hole to keep the bottom support rod 121 locked in the horizontal position.

[0052] In some embodiments, the connecting rod 122 is provided with a third side plate (not shown in the figure), and the third side plate is provided with a fifth pin hole. The bottom support rod 121 is provided with a sixth pin hole, that is, the sixth pin hole is provided on the side of the middle part of the bottom support rod 121. When the connecting rod 122 is rotated to the vertical position, the fifth pin hole and the sixth pin hole are aligned, and a third limiting pin is inserted into the aligned fifth pin hole and the sixth pin hole to lock the connecting rod 122 in the vertical direction and prevent the connecting rod 122 from shaking when a person steps on the foot pedal.

[0053] The foot pedal 123 is hinged between the bottoms of the two connecting rods 122. A limiting plate 124 is provided on the rear side of the foot pedal 123. When the foot pedal 123 is rotated to the horizontal position, the limiting plate 124 abuts against the two connecting rods 122 to lock the foot pedal 123 in the horizontal direction.

[0054] The window fixing device 10 of this application is operated as follows: Remove the window fixing device 10 from its folded state and unfold the telescopic bracket 11. Adjust the total height of the telescopic bracket 11 according to the height of the window so that the length of the telescopic bracket 11 is adapted to the height between the upper and lower edges of the window. Insert the first top locking bracket 113 into the inner side of the top edge of the window, insert the first bottom locking bracket 114 into the inner side of the bottom edge of the window, rotate the side support rod 13 outward to unfold it, so that the support block 131 is pressed against the left and right side walls of the window, rotate the top support rod 14 upward to the horizontal position, so that the second top locking bracket 141 is locked on the outer side of the top edge of the window, and insert the first limiting pin 143 to lock it, rotate the bottom support rod 121 downward to the horizontal position, so that the second top locking bracket 141 is locked on the outer side of the top edge of the window, insert the second limiting pin 127 to lock the bottom support rod 121, rotate the connecting rod 122 to the vertical direction, insert the third limiting pin to lock the relative position of the connecting rod 122 and the bottom support rod 121, rotate the foot pedal 123 to the horizontal position, fix one end of the descent rope 23 to the safety hanging ring 15, and connect the safety belt of the escapee to the hook 28 of the descent device 20. The escapee first steps on foot pedals 1, 2, and 3. After confirming that the device is stable, they slowly descend through the window to escape.

[0055] This application achieves rapid conversion between the use state and the storage state through the extension and retraction of the telescopic bracket 11. It can be quickly opened and firmly fixed at the window in the event of a disaster to form a stable and efficient escape attachment point, and can also be folded into a flat shape in the normal state. The device has a simple structure, is easy to operate and has wide adaptability.

[0056] Reference Figures 6 to 11 The escape descent device 20 includes a bracket 21, a motor 22, a descent rope 23, and a damping component 24.

[0057] The support 21 is a rectangular hollow shell structure with an internal cavity for accommodating other components. At both ends of the support 21, i.e., at both ends along the extension direction of the descent rope 23, are through holes connecting the cavity to the outside, specifically including a first through hole 211 and a second through hole 212. The first through hole 211 and the second through hole 212 are coaxially arranged, providing a channel for the descent rope 23 to pass through the support 21.

[0058] Specifically, the support 21 includes a first rectangular plate 213, a second rectangular plate 214, a first rectangular sleeve plate 215, and a second rectangular sleeve plate 216. The first rectangular plate 213 and the second rectangular plate 214 are aligned along their length and spaced apart. The first rectangular sleeve plate 215 and the second rectangular sleeve plate 216 are respectively fitted onto the two ends of the first rectangular plate 213 and the second rectangular plate 214, and are connected and fixed to the first rectangular plate 213 and the second rectangular plate 214 by pins. Notches are opened at the opposite ends of the first rectangular plate 213 and the second rectangular plate 214. The notches at both ends of the first rectangular plate 213 and the notches at both ends of the second rectangular plate 214 are aligned to form a first through hole 211 and a second through hole 212, respectively. The interior of the first rectangular plate 213 and the interior of the second rectangular plate 214 together form the cavity inside the support 21. The space between the first rectangular plate 213 and the second rectangular plate 214 is used to thread the descent rope 23. The space between the first rectangular plate 213 and the second rectangular plate 214 is also part of the cavity.

[0059] The motor 22 is fixedly mounted on the bracket 21, and the power output shaft of the motor 22 extends into the cavity of the bracket 21. A rolling element is disposed within the cavity, and the rolling element is connected and fixed to the power output shaft of the motor 22, thus allowing it to rotate together with the power output shaft. Specifically, the housing of the motor 22 is fixedly connected to the outer wall of the first rectangular plate 213 of the connecting seat, and the rolling element is installed within the first rectangular plate 213. In this application, the motor 22 is a permanent magnet synchronous motor.

[0060] The descent rope 23 passes through the first through hole 211, the cavity, and the second through hole 212 of the bracket 21. The outer circumferential surface of the rolling element is in close contact with the descent rope 23, forming a rolling engagement with it. When the user descends, the friction of the descent rope 23 drives the rolling element to rotate on it. The rotational motion of the rolling element is synchronously transmitted to the power output shaft of the motor 22, forcing the motor 22 to reverse. At this time, the motor 22 acts as a generator, generating electricity.

[0061] The damping component 24 includes a coil 241, an iron core column 242, a convex plate 243, and a concave plate 244. The coil 241 is electrically connected to the output circuit of the motor 22. The iron core column 242 is a cylindrical component with good magnetic permeability. The iron core column 242 is movably inserted inside the coil 241, with a radial gap between its outer wall and the inner wall of the coil 241 to ensure that the iron core column 242 can move smoothly axially within the coil 241. The convex plate 243 and the concave plate 244 are arranged opposite each other inside the cavity of the support 21 and are distributed on both sides of the descent rope 23. The side of the concave plate 244 facing the descent rope 23 has a concave surface, while the side of the convex plate 243 facing the descent rope 23 has a protruding protrusion opposite to the concave plate 244. This convex-concave fit structure allows the descent rope 23 to bend and deform when clamped, thereby increasing the contact area and friction, and achieving a braking effect.

[0062] One end of the iron core post 242 extends from inside the coil 241 and is fixedly connected to the convex plate 243. The geometric center of the iron core post 242 is offset from the geometric center of the coil 241 along the central axis of the coil 241. Specifically, the geometric center of the iron core post 242 is closer to the convex plate 243, while the geometric center of the coil 241 is closer to the concave plate 244. In other words, in the initial unenergized state, the iron core post 242 is not centered on the coil 241, but is offset towards the end closer to the convex plate 243. When the descent speed is too fast, the rolling speed of the rolling element increases, thereby driving the motor 22 to reverse and accelerate. This increases the power generation of the motor 22, and the increased current increases the magnetic field generated by the coil 241. This magnetic field interacts with the iron core post 242, generating a strong electromagnetic pull. Because the geometric center of the iron core post 242 is offset towards the convex plate 243, the iron core post 242 is subjected to an electromagnetic pull towards the geometric center of the coil 241 from the initial position. The pulling force drives the iron core column 242 to move the convex plate 243 closer to the concave plate 244. When the convex plate 243 and the concave plate 244 clamp the descent rope 23 together, friction is generated, which strongly brakes the descent rope 23, forcing the descent speed to decrease. Conversely, when the speed decreases to a certain value, the power generation of the motor 22 weakens, the electromagnetic force of the coil 241 weakens, and the convex plate 243 moves away from the concave plate 244 under the action of the elastic force of the descent rope 23, the clamping force is released, and the descent speed is restored.

[0063] The motor 22 acts as a speed sensor to monitor the descent speed in real time, while the damping component 24 acts as an actuator for rapid response. This design allows the damping force of the descent device 20 to be dynamically and adaptively adjusted according to the real-time descent speed, overcoming the technical bias of traditional mechanical friction descent devices 20 having fixed damping force and poor adaptability.

[0064] In one embodiment, the descent device 20 further includes a roller assembly 26, which is disposed at both ends inside the bracket 21, namely at one end near the first through hole 211 and at one end near the second through hole 212.

[0065] Each roller assembly 26 includes two rollers 261, which are rotatably mounted on the bracket 21 via their respective shafts. Specifically, the two rollers 261 are respectively installed inside the first rectangular plate 213 and the second rectangular plate 214. Each roller 261 has a rope groove on its outer circumferential surface, and the descent rope 23 is sequentially embedded into the rope groove of each roller 261 to form a rolling engagement. The rolling element is any one of the four rollers 261.

[0066] By setting roller sets 26 at both ends of the bracket 21, the descent rope 23 forms a bent path inside the bracket 21, which increases the contact area and friction between the rollers 261 and the descent rope 23. This ensures that the rolling parts can be driven to rotate more reliably by the descent rope 23. Moreover, multiple rollers 261 share the tension from the descent rope 23, dispersing the pressure concentrated on a single roller 261. This greatly reduces the wear between each roller 261 and the descent rope 23, and extends the service life of the descent rope 23 and the roller set 26.

[0067] Furthermore, the two rollers 261 in each roller group 26 are partially staggered along the length of the descent rope 23. This structure also makes the contact points between the descent rope 23 and each roller 261 more evenly distributed, making the descent process smoother.

[0068] In some embodiments, the damping component 24 further includes an outer sleeve 245, an inner sleeve 246, a first end plate 247, and a second end plate 248.

[0069] The inner sleeve 246 is coaxially disposed inside the outer sleeve 245, forming an annular cavity between them. The coil 241 is arranged around the annular cavity between the inner sleeve 246 and the outer sleeve 245. The outer sleeve 245 and the inner sleeve 246 are made of a metal material with high magnetic permeability, which can effectively confine the magnetic field generated by the coil 241, reduce magnetic leakage, and improve electromagnetic efficiency. The first end plate 247 is fixedly installed at the upper end of the outer sleeve 245 and the inner sleeve 246; the second end plate 248 is fixedly installed at the lower end of the outer sleeve 245 and the inner sleeve 246. The first end plate 247 has a first core hole, and the second end plate 248 has a second core hole. The core post 242 passes through the first core hole and the second core hole and can slide smoothly axially within them.

[0070] In one embodiment, the damping component 24 further includes a mounting plate 249 and a crossbar 250. The mounting plate 249 is fixedly connected to the bracket 21, providing a mounting base for the entire damping component 24. A first end plate 247 is fixedly connected to the mounting plate 249. A third core hole is provided on the mounting plate 249, and the position of the third core hole is aligned with the first core hole on the first end plate 247. One end of the core post 242 passes through the first core hole and the third core hole in sequence, extending out to the outside of the mounting plate 249. The end of the core post 242 extending out to the outside of the mounting plate 249 is fixedly connected to the crossbar 250. The crossbar 250 is horizontally arranged and connected to the protruding plate 243 through a connecting block 251. An assembly hole is provided on the mounting plate 249, and the connecting block 251 forms a sliding fit with the assembly hole, that is, the connecting block 251 can slide within the assembly hole.

[0071] The crossbar 250 and the protruding plate 243 are located on both sides of the mounting plate 249. The crossbar 250 is located on one side of the mounting plate 249 and outside the bracket 21, while the protruding plate 243 is located at the other end of the mounting plate 249 and inside the bracket 21. When the core column 242 moves under the electromagnetic force of the coil 241, the core column 242 will drive the protruding plate 243 to move through the crossbar 250 and then through the connecting block 251, thereby causing the protruding plate 243 to move closer to or further away from the concave plate 244.

[0072] In some embodiments, the escape descent device 20 further includes a manual pressure plate 27. The manual pressure plate 27 is an elongated plate-like member. One end of the manual pressure plate 27 is hinged to the bracket 21 via a hinge shaft, allowing it to swing around the hinge point. Specifically, the manual pressure plate 27 is hinged to the interior of the first rectangular plate 213 via a hinge shaft, and the other end of the manual pressure plate 27 is cantilevered, forming a free end. The manual pressure plate 27 is located outside the crossbar 250, and initially there is a small gap or direct contact between the manual pressure plate 27 and the crossbar 250. A manual pull rope 271 is connected to the cantilevered end of the manual pressure plate 27. If the descent speed becomes too fast, the user can pull the manual pull rope 271 downwards. The manual pull rope 271 causes the cantilevered end of the manual pressure plate 27 to swing downwards. The manual pressure plate 27 then presses down on the crossbar 250, causing the crossbar 250 to push the convex plate 243 towards the concave plate 244 via the connecting block 251. This clamps the descent rope 23 between the convex plate 243 and the concave plate 244, achieving forced braking. The design of the manual pressure plate 27 adds a reliable backup safety guarantee to the escape descent device 20. Users only need to pull the rope to directly drive the damping component 24 through a purely mechanical linkage, achieving forced deceleration and providing safety assurance.

[0073] In some embodiments, the mounting plate 249 is provided with at least two guide holes. Each guide hole is distributed on both sides of the mounting hole on the mounting plate 249. A guide rod 252 is slidably mounted in each guide hole. The end of these guide rods 252 located outside the bracket 21 is a free end, while the end of these guide rods 252 located inside the bracket 21 is fixedly connected to the protrusion plate 243.

[0074] When the manual pressure plate 27 presses down on the crossbar 250, causing the crossbar 250 to move, the movement of the convex plate 243 is constrained by multiple guide rods 252, causing it to move linearly towards the concave plate 244. The guide rods 252 cooperate with the guide holes on the mounting plate 249 to form a linear guiding system, ensuring that the convex plate 243 always moves in a straight line towards or away from the concave plate 244. The cooperation between the guide rods 252 and the guide holes effectively prevents the convex plate 243 from tilting, swaying, or jamming.

[0075] Furthermore, a guide sleeve 253 is installed in each guide hole, and the guide rod 252 is directly assembled in the guide sleeve 253.

[0076] To prevent the manual pressure plate 27 from interfering with the end of the extended guide rod 252 when the lowering crossbar 250 moves, a clearance hole 272 is provided on the manual pressure plate 27 at the position corresponding to the guide rod 252, providing sufficient movement space for the guide rod 252 so that the manual pressure plate 27 can swing freely without obstruction.

[0077] In some embodiments, the damping component 24 includes two coils 241 and two iron core columns 242. The two coils 241 are distributed on both sides of the bracket 21. The iron core columns 242 passing through the two coils 241 are connected to both ends of the crossbar 250. Each coil 241 is installed and fixed by a corresponding outer sleeve 245, inner sleeve 246, first end plate 247 and second end plate 248. Each coil 241 is connected to the mounting plate 249 through its respective first end plate 247. The connecting block 251 is connected to the middle of the crossbar 250. When the two coils 241 are energized, the two iron core columns 242 jointly drive the crossbar 250 to move, so that the crossbar 250 drives the convex plate 243 to move through the connecting block 251, thus making the movement of the convex plate 243 more stable.

[0078] To facilitate the installation and use of the escape descent device 20, in some embodiments, a hook 28 is installed on the bracket 21. This hook 28 can be a U-shaped hook or a ring hook, and it is used to connect to a life jacket worn by the person escaping. Specifically, the hook 28 is fixed to one side of the second rectangular plate 214.

[0079] In some embodiments, an audible and visual alarm 25 is installed at the end of the descent rope 23 that contacts the ground. This alarm 25 is an electronic module integrating high-brightness LEDs and a buzzer. When the descent rope 23 is released or when the rope end senses a change in gravity, the alarm 25 is automatically triggered, emitting a flashing bright light and a piercing alarm sound. The alarm 25 clearly indicates the escapee's exact location to rescuers below or other people on the ground, facilitating rapid rescue efforts or avoiding the fall area. Secondly, the loud alarm sound alerts people on the ground to avoid the area, preventing the falling person from injuring those below, and also attracts the attention of more people in the vicinity, increasing the likelihood of receiving external rescue.

[0080] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A high-rise escape device, characterized in that, include: Window fixing device, used for installation at windows; Descending device, including A bracket, wherein a cavity is provided inside the bracket, and through holes are provided at both ends of the bracket to communicate with the cavity; The motor is mounted on the bracket, and the bracket is also provided with a rolling element, which is connected to the power output shaft of the motor. A descent rope is inserted into the bracket through the through hole. One end of the descent rope is connected to the window fixing device. The rolling element rolls in cooperation with the descent rope and is used to roll along the descent rope during descent. The damping component includes a coil, a core post, a convex plate, and a concave plate. The coil is electrically connected to the output circuit of the motor and is connected to the support. The core post passes through the inside of the coil. The convex plate and the concave plate are arranged opposite each other inside the support and distributed on both sides of the descent rope. One end of the core post extends from inside the coil and connects to the convex plate. The geometric center of the core post is offset from the geometric center of the coil along the central axis of the coil. The geometric center of the core post is close to the convex plate, and the geometric center of the coil is close to the concave plate. The core post can drive the convex plate to move closer to or away from the concave plate to achieve clamping or loosening of the descent rope.

2. The high-rise escape device according to claim 1, characterized in that: The window fixing device includes: A telescopic bracket, wherein a first top locking bracket is installed at the top of the telescopic bracket for locking onto the inside of the top edge of the window, and a first bottom locking bracket is installed at the bottom of the telescopic bracket for locking onto the inside of the bottom edge of the window; A foot support frame includes a bottom support rod, a connecting rod, and a foot pedal. One end of the bottom support rod is hinged to the bottom end of the telescopic bracket, one end of the connecting rod is hinged to the bottom support rod, and the foot pedal is hinged to the other end of the connecting rod. A limiting plate is provided on the foot pedal. When the foot support rod is rotated to a horizontal position, the limiting plate abuts against the connecting rod to form a limit.

3. The high-rise escape device according to claim 2, characterized in that: The window fixing device also includes a side support rod, one end of which is hinged to the telescopic bracket, and the other end is used to support the side of the window. A support block is installed on the side of the side support rod that is used to support the side of the window, and friction texture is provided on the side of the support block that is used to contact the side of the window.

4. The high-rise escape device according to claim 2, characterized in that: The bottom support rod is provided with a second bottom locking bracket, which is used to lock onto the outside of the bottom edge of the window.

5. The high-rise escape device according to claim 2, characterized in that: The top of the telescopic bracket is hinged to a top support rod, and the top support rod is provided with a second top clip, which is used to lock onto the outside of the top edge of the window.

6. The high-rise escape device according to any one of claims 2 to 5, characterized in that: The telescopic support includes a scissor bar and two telescopic rods arranged side by side at intervals. The scissor bar is connected between the two telescopic rods. One of the telescopic rods is provided with a sliding groove in which two sliders are assembled. One end of the scissor bar is hinged to the two sliders, and the other end is hinged to the other telescopic rod.

7. The high-rise escape device according to claim 1, characterized in that: The damping component further includes an outer sleeve, an inner sleeve, a first end plate, and a second end plate. The inner sleeve is disposed inside the outer sleeve, and the coil is disposed between the inner sleeve and the outer sleeve. The first end plate is installed at the upper end of the outer sleeve and the inner sleeve, and the second end plate is installed at the lower end of the outer sleeve and the inner sleeve. The first end plate is provided with a first through hole, and the second end plate is provided with a second through hole. The iron core column passes through the first through hole and the second through hole.

8. The high-rise escape device according to claim 7, characterized in that: The damping component further includes a mounting plate and a crossbar. The mounting plate is fixedly connected to the bracket. The first end plate is fixedly connected to the mounting plate. The mounting plate has a third through hole for the iron core column to pass through. The iron core column passes through the third through hole and is connected to the crossbar. The crossbar is connected to the convex plate. The crossbar and the convex plate are located on both sides of the mounting plate. The mounting plate has an assembly hole. The crossbar and the convex plate are connected by a connecting block. The connecting block is slidably assembled in the assembly hole.

9. The high-rise escape device according to claim 8, characterized in that: It also includes a manual pressure plate, one end of which is hinged to the bracket, and the other end of which is cantilevered. The manual pressure plate is located outside the crossbar, and a manual pull rope is provided at the cantilevered end of the manual pressure plate. The manual pressure plate is used to press down the crossbar so that the iron core column can move axially in the coil.

10. The high-rise escape device according to claim 9, characterized in that: The mounting plate is provided with guide holes, which are distributed on both sides of the assembly hole. Guide rods are installed in the guide holes and are fixedly connected to the protruding plate. The manual pressure plate is provided with clearance holes for cooperating with the guide rods.

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