High-rise building escape device

Abstract

This invention relates to a descent device for escape in high-rise buildings. It includes: an anchor bracket fixed to the wall surrounding windows and doors in a multi-story building; a support arm supported by the anchor bracket and capable of extending outwards through windows and doors; a descent device body installed at the end of the support arm and having a descent rope; and an escape assistance unit connected to the support arm via a fall arrest rope, which guides the escapee when detachably installed on the window frame. According to the structure described above, the descent device for escape in high-rise buildings of this invention allows users to move more safely and easily to the outside through windows, doors, or balconies, enabling users who are afraid to climb over windows to escape in a more stable posture.

Description

Technical Field

[0001] This invention relates to a descent device for escaping through windows and doors in high-rise buildings, and more specifically, to a descent device for escaping high-rise buildings that enables the elderly or children to escape easily. Background Technology

[0002] A descent device is a device that helps residents of high-rise buildings escape quickly and safely to the outside in emergencies such as fires or earthquakes. Descent devices are typically installed on windows, doors, or balconies. In an emergency, after setting up the descent device, the person, wearing a chest harness, moves towards the window or door to descend. After the rope is released, the descent device slowly lowers to the ground using the escapee's weight.

[0003] However, existing descent devices have several limitations in terms of ease of use and psychological stability. In particular, due to the environmental characteristics of high-rise buildings, even if users wear descent devices, they are prone to psychological fear when climbing over windows, doors, or balcony railings, which may lead to hesitation or difficulty in escaping.

[0004] Despite these inconveniences, existing descent devices lack the structural functionality to help users safely and easily move to the outside of windows and doors. This inconvenience is particularly pronounced for users with physical limitations, such as the elderly, pregnant women, and children. Furthermore, because the window frames of most high-rise buildings are set at a prescribed height above the ground, there are situations where shorter individuals or those with mobility issues find it difficult to climb over the window frames on their own. Therefore, without assistance, descent devices cannot be used.

[0005] Therefore, there is a current need for a descent device that can be easily used independently by the elderly and can enable safe escape with minimal psychological anxiety.

[0006] Related patents include Korean Patent Publication No. 10-2105877 (Fire-fighting balcony descent device installed on the exterior wall of a building). Summary of the Invention

[0007] Technical issues

[0008] This invention addresses the problems described above. The objective of this invention is to provide a high-rise building escape descent device that guides users to move more safely and easily to the outside through windows, doors, or balconies, enabling users who are afraid to climb over windows to escape in a more stable posture.

[0009] However, existing descent devices have several limitations in terms of ease of use and psychological stability. In particular, due to the environmental characteristics of high-rise buildings, even if users wear descent devices, they are prone to psychological fear when climbing over windows, doors, or balcony railings, which may lead to hesitation or difficulty in escaping.

[0010] Despite these inconveniences, existing descent devices lack the structural functionality to help users safely and easily move to the outside of windows and doors. This inconvenience is particularly pronounced for users with physical limitations, such as the elderly, pregnant women, and children. Furthermore, because the window frames of most high-rise buildings are set at a prescribed height above the ground, there are situations where shorter individuals or those with mobility issues find it difficult to climb over the window frames on their own. Therefore, without assistance, descent devices cannot be used.

[0011] Therefore, there is a current need for a descent device that can be easily used independently by the elderly and can enable safe escape with minimal psychological anxiety.

[0012] Related patents include Korean Patent Publication No. 10-2105877 (Fire-fighting balcony descent device installed on the exterior wall of a building).

[0013] Technical solution

[0014] To achieve the objectives described above, the high-rise building escape descent device of the present invention includes: an anchor bracket fixed to the wall surrounding the windows and doors of a multi-story building; a support arm supported by the anchor bracket and capable of extending outward through the windows and doors; a descent device body installed at the end of the support arm and having a descent rope; and an escape assistance unit connected to the support arm via a fall arrest rope, which guides the escapee to escape while being detachably installed on the window frame of the window or door.

[0015] Furthermore, the escape assistance unit includes: a main board with a width wide enough for an escapee to sit on; a pair of bottom support members, spaced parallel to each other at the bottom of the main board, each having a horizontal elongated hole with an inwardly toothed surface on its inner surface; a plurality of movable fixing blocks, adjustablely positioned within the horizontal elongated holes of each bottom support member, each having locking teeth on its upper and lower surfaces that can engage with the inwardly toothed surface; a pair of rotating support plates, the upper ends of which are rotatably connected to the movable fixing blocks on both sides between the bottom support members, and in the downward unfolded state, positioned opposite each other across the window frame, able to be pressed tightly against the wall; and a push stop fixed to the movable fixing blocks, which is pushed by the rotating support plates when the rotating support plates rotate, causing the movable fixing blocks to engage with the inwardly toothed surface.

[0016] Furthermore, an expansion board that can be pulled out of the motherboard is provided inside the motherboard.

[0017] Furthermore, the width of the horizontal elongated hole is greater than the height of the movable fixing block, so that the position of the movable fixing block can be adjusted along the length of the horizontal elongated hole inside the hole.

[0018] Furthermore, the main board is equipped with a plurality of eye bolts for securing the fall arrest rope.

[0019] Furthermore, in order to achieve the above-mentioned objectives, the high-rise building escape descent device of the present invention includes: an anchor bracket fixed to the wall around the window of a multi-story building; a support arm supported by the anchor bracket and capable of extending outward through the window; a descent device body installed at the end of the support arm and having a descent rope; a main board connected to the support arm via a fall arrest rope and hung on the window frame; an inner connecting plate connected to one end of the main board, and in a fixed state with an acute angle relative to the main board, the entire surface of which contacts the inner surface of the wall; and an outer connecting plate connected to the other end of the main board, fixed to the main board at an acute angle, the lower end of which is supported by the outer side of the wall for supporting the main board.

[0020] Furthermore, the inner connecting plate is equipped with a foot pedal that allows escapees to step onto the mainboard.

[0021] Furthermore, the other end of the main board also includes a support plate, the upper end of which is hinged to the main board, and the lower end forms a support rod that the escapee can step on with their toes.

[0022] Furthermore, a shaft serving as a rotating shaft is provided at the upper end of the inner connecting plate and the outer connecting plate. The main plate is rectangular and has angle maintaining plates fixed at its four corners. The angle maintaining plates have shaft holes for inserting shafts into the inner connecting plate and the outer connecting plate, and a plurality of pin holes arranged at equal angles along the arc direction of a circle centered on the shaft holes. The inner connecting plate and the outer connecting plate have pin holes corresponding to the pin holes, and also include locking pins. When the pin holes and the pin holes are aligned with each other, the pins are inserted into the pin holes through the pin holes.

[0023] Furthermore, the motherboard also includes a handle, allowing survivors who step on the support rod to hold it with their bare hands.

[0024] Furthermore, the handle includes: a rotating body rotatably mounted on the main board; and a handle body fixed to the rotating body.

[0025] The effects of the invention

[0026] According to the structure described above, the high-rise building escape descent device of the present invention can guide users to move to the outside more safely and easily through windows or balconies, enabling users who are afraid to climb over windows to escape in a more stable posture. Attached Figure Description

[0027] Figure 1 This is a perspective view showing the overall structure of the high-rise building escape descent device according to the first embodiment of the present invention.

[0028] Figure 2 For illustrative purposes Figure 1 A partial cross-sectional view of the structure of the escape aid unit shown.

[0029] Figure 3 for Figure 2 A partial exploded 3D view of the escape aid unit.

[0030] Figure 4 This is a diagram illustrating the structure of the slow-descent device according to a second embodiment of the present invention.

[0031] Figure 5 To be shown separately Figure 4 The diagram shows the escape aid unit.

[0032] Figure 6 for Figure 5 An exploded 3D diagram of the escape aid unit.

[0033] Figure 7 To show Figure 6 A partial sectional view of the mounting structure of the rotary handle shown. Detailed Implementation

[0034] Hereinafter, an embodiment of the present invention will be described in further detail with reference to the accompanying drawings.

[0035] Figure 1 This is a perspective view showing the overall structure of the high-rise building escape descent device 20 according to the first embodiment of the present invention. Figure 2 For illustrative purposes Figure 1 A partial cross-sectional view of the structure of the escape aid unit shown. Furthermore, Figure 3 for Figure 2 A partial exploded 3D view of the escape aid unit.

[0036] As shown in the figure, the descent device 20 of the first embodiment may include a descent unit 30 and an escape assistance unit 40. The descent unit 30 and the escape assistance unit 40 are connected by a fall arrest rope 37, which can guide the escapee to escape safely and quickly.

[0037] The descent control unit 30 can be installed in the same location as a standard descent control device. That is, it can be installed on the wall 11 next to a building escape window or door. Figure 1As shown, the descent unit 30 includes an anchor bracket 31, a support arm 33, and a descent device body 35. The anchor bracket 31 is fixed to the wall 11 surrounding the window of a multi-story building and provides support. The anchor bracket 31 can be positioned next to the window. Figure 1 Only the window frame 13 is shown.

[0038] The support arm 33 refers to the component whose rear end is supported by the anchor bracket 31 and extends horizontally. The support arm 33 can rotate left and right and can extend to the outside of the building through windows and doors. Moreover, the support arm 33 is provided with a first ring 33a and a second ring 33c. The first ring 33a is located on the lower side of the support arm 33 and secures the fall arrest rope 37. And the second ring 33c is fixed to the extended end of the support arm 33 and supports the descent device body 35.

[0039] The descent device body 35 is secured to the second ring 33c at the end of the support arm, and a descent rope 35a is provided on the descent device body 35. The descent rope 35a passes through the interior of the descent device body 35. The descent device body 35 itself is a conventional structure, housing a centrifugal brake, a gear mechanism, and pulleys inside. Furthermore, a wearing strap 35c is fixed to the end of the descent rope 35a. The wearing strap 35c is fixed to the chest of the escapee. That is, if the wearer passes through the window frame 13 with the wearing strap 35c on their chest, a slow descent can be achieved.

[0040] On the other hand, the escape assistance unit 40 serves to guide the escapee's descent. After straddling the escape assistance unit 40, the escapee can turn around and descend. The descent can be completed without looking directly at the ground. The escape assistance unit 40 is detachably mounted on the window frame 13 of the window and is connected to the support arm 33 via a fall arrest rope 37. For this purpose, multiple eye bolts 42 are fixed to the main board 41. The fall arrest rope 37 connects each eye bolt 42 to the first ring 33a. Since the escape assistance unit 40 is connected to the support arm 33 via the fall arrest rope 37, there is no need to worry about the escape assistance unit 40 falling to the ground.

[0041] The escape assistance unit 40 may include a main board 41, an expansion board 43, a bottom support 45, a movable fixing block 49, a push stop 49e, and a rotating support plate 47.

[0042] The main board 41 is a rectangular plate-shaped component, wide enough for an escapee to sit on. Different lifting eye bolts 42 can be fixed at the two corners of the main board 41. Furthermore, two recesses 41a are formed inside the main board 41. The recesses 41a open in opposite directions to accommodate the extension plate 43. An anti-detachment part 41b is formed at the entrance of the recess 41a. The anti-detachment part 41b engages the locking protrusion 43a of the extension plate 43 to prevent the extension plate 43 from detaching from the recess 41a.

[0043] The expansion plate 43 is a plate-shaped component housed in the recess 41a and can be pulled out from the recess 41a. When the area of ​​the main board 41 is insufficient, the expansion plate 43 can be pulled out for use.

[0044] The bottom support component 45 is a quadrilateral rod-shaped part, such as... Figure 3 As shown, the bottom supports 45 are fixed to both sides of the bottom surface of the motherboard 41. The bottom supports 45 are parallel to each other and spaced apart by a predetermined interval. Specifically, each bottom support 45 has two horizontal elongated holes 45a. The horizontal elongated holes 45a are laterally open through holes with a predetermined width (…). Figure 3 (w in the text). Furthermore, an inwardly facing toothed surface 45c is formed on the inner surface of the horizontal elongated hole 45a. Teeth with a specified tooth pitch and tooth height are formed on the inwardly facing toothed surface 45c. The inwardly facing toothed surface 45c can mesh with the locking teeth 49a of the movable fixing block 49 described later. Movable fixing blocks 49 can be provided in each horizontal elongated hole 45a.

[0045] The movable fixing block 49 is generally a hexahedral component and is adjustablely positioned within the horizontal elongated hole 45a. Specifically, locking teeth 49a are formed on the upper and lower surfaces of the movable fixing block 49. The locking teeth 49a can engage with the inward toothed surface 45c. The height of the movable fixing block 49 (…) Figure 3 The width (H) of the horizontal elongated hole 45a is less than the width (w) of the horizontal elongated hole 45a. Therefore, the movable fixed block 49 can be adjusted in position along the length of the horizontal elongated hole 45a.

[0046] Furthermore, each movable fixed block 49 is provided with a push stop 49e. The push stop 49e is a horizontal locking component that is embedded in and fixed to the movable fixed block 49, used to support the rotating support plate 47 in the vertical state and prevent it from unfolding outward, that is, along... Figure 2 The direction of arrow a is extended. In particular, in the vertical state, if the rotating support plate 47 is pushed in the direction of arrow a, the pushing stop 49e is pressed in the direction of arrow c due to the rotating support plate 47. If the pushing stop 49e is pressed in the direction of arrow c, the movable fixing block 49 itself rotates in the direction of arrow d, and the locking teeth 49a of the movable fixing block 49 partially engage with the upper and lower inward tooth surfaces 45c. In this tense state, the movable fixing block 49 cannot move along the length direction of the horizontal elongated hole.

[0047] On the other hand, the rotating support plate 47 is a rectangular plate-shaped component with a rotating shaft 47a at its upper end. The rotating support plate 47 is disposed between the bottom support members 45. The rotating shaft 47a at the upper end of the rotating support plate is rotatably connected to the movable fixed block 49. The rotating support plate 47 can maintain a drooping state under the action of gravity. Furthermore, as... Figure 2As shown, in the vertical position, the rotating support plate 47 is locked in the push stop 49e and cannot be unfolded outward. In the downward unfolded position, the two rotating support plates 47 are located on opposite sides across the window frame 13 and can be tightly attached to the wall 11.

[0048] like Figure 2 As shown, the center of the main board 41 is roughly placed on the window frame 13. In this state, if the drooping rotating support plate 47 is moved toward the wall 11 and pressed tightly against both sides of the wall 11, the installation of the escape assistance unit 40 is completed. In this state, the fall arrest rope 37 can be connected to the eye bolt 42 for use. At this time, if the extension plate 43 is pulled out, a wider area can be ensured, thereby further stabilizing the posture.

[0049] Figure 4 This is a diagram illustrating the structure of the descent control device according to the second embodiment of the present invention. Figure 5 To be shown separately Figure 4 The diagram shown is of an escape aid unit. Figure 6 for Figure 5 An exploded 3D diagram of the escape aid unit. Furthermore, Figure 7 To show Figure 6 A partial sectional view of the mounting structure of the rotary handle shown.

[0050] As shown in the figure, the descent device 20 of the second embodiment may include a descent unit 30 and other escape assistance units 60. The descent unit 30 is the same as that in the first embodiment, therefore, its related repeated description will be omitted.

[0051] The escape assistance unit 60 of the second embodiment may include a main board 61, an inner connecting plate 65, an outer connecting plate 67, and a support plate 69.

[0052] The main board 61 can be connected to the support arm 33 via a fall arrestor rope 37. For this purpose, multiple eye bolts 42 are fixed to the upper corner of the main board 61. The eye bolts 42 are connected to the fall arrestor rope 37.

[0053] The main board 61 is a rectangular plate-shaped component with angle-maintaining plates 63 at its four corners on the bottom surface. The angle-maintaining plates 63 are disc-shaped components divided into quarter sections and have a specified thickness. The angle-maintaining plates 63 are welded and fixed to the bottom surface of the main board 61 in a vertical position.

[0054] An angle-maintaining plate 63 may have one shaft hole 63a and multiple pin holes 63c. Each pin hole 63c is a through hole arranged at equal angles along the arc direction of a circle centered on the shaft hole 63a. The number of pin holes 63c can be four. Among the multiple pin holes 63c, the angle between the line connecting the outermost pin hole and the shaft hole 63a is 90 degrees. A locking pin 62 is inserted into the pin hole 63c. This will be explained later. The pin holes 63c are spaced 30 degrees apart.

[0055] The shaft hole 63a refers to the hole through which the support shafts 65a and 67a are inserted. Among the four angle-maintaining plates 63, the two ends of the shaft 65a of the inner connecting plate 65 can be inserted into the two angle-maintaining plates 63 on one side. Furthermore, the shaft 67a of the outer connecting plate 67 can be inserted into and supported by the shaft hole 63a of the remaining angle-maintaining plate 63.

[0056] Furthermore, multiple eye bolts 42 and handles 64 are provided on the upper surface of the main board 61. The handles 64 are the parts that the escapee can hold with their bare hands. Because of the handles 64, the escapee can reduce their psychological anxiety by holding the handles. In particular, the handles 64 are rotatably supported on the main board 61. The user can continuously hold the handles 64 while climbing over the escape assistance unit 60 and turning their body.

[0057] Handle 64 may have Figure 7 The structure shown. (As illustrated) Figure 7 As shown, the handle 64 includes a rotating body 64a and a handle body 64c.

[0058] The rotating body 64a is a disc-shaped component with a specified diameter, rotatably mounted in the mounting hole 61c. The mounting hole 61c is a hole formed on the main board 61, rotatably supporting the rotating body 64a. Supported by the mounting hole 61c, the rotating body 64a can rotate left and right. The handle body 64c is fixed to the rotating body 64a and protrudes upwards from the upper part of the main board 61. As described above, because the handle 64 is rotatable, the escapee can stably hold the handle body 64c regardless of their location.

[0059] On the other hand, such as Figure 4 As shown, the inner connecting plate 65 refers to a component located inside the building and in contact with the inner surface of the wall 11. The inner connecting plate 65 is rectangular and has a shaft 65a at its upper end. Both ends of the shaft 65a are inserted into the shaft holes 63a of the angle maintaining plate 63. The inner connecting plate 65 can rotate about the shaft 65a as the central axis.

[0060] Furthermore, a pin hole 65b is formed at the lower part of the shaft 65a. The pin hole 65b corresponds to the pin hole 63c formed on the angle maintaining plate 63. With one of the multiple pin holes 63c aligned, the pin hole 65b receives the inserted locking pin 62. When the pin hole 65b and the pin hole 63c are aligned in a straight line, inserting the locking pin 62 completes the fixation of the inner connecting plate 65 relative to the main plate 61. The maximum angle between the main plate 61 and the inner connecting plate 65 is 90 degrees. However, the angle is preferably 60 degrees.

[0061] Furthermore, multiple footboards 66 are provided on the outer side of the inner connecting plate 65. The footboards 66 are equivalent to ladders for escapees to climb. Even if the indoor floor is high above the window frame, escapees can easily climb to the top of the main board 61 by stepping on the footboards 66.

[0062] The pedal can be shaped by bending an iron plate of a specified thickness at a 90-degree angle. Furthermore, pedal shafts 66a are formed at both ends of the pedal 66. The pedal shafts 66a are rotatably inserted into the pedal supports 65c. The pedal supports 65c, as components fixed to both ends of the inner connecting plate 65 in the width direction, rotatably support the pedal shafts 66a.

[0063] The outer connecting plate 67 is a rectangular plate connected to the angle maintaining plate 63 at the other end of the main plate. A shaft 67a is provided at the upper end of the outer connecting plate 67. The shaft 67a is inserted into the shaft hole 63a of the angle maintaining plate 63. Furthermore, a pin hole 67b is provided at the lower part of the shaft 67a. The pin hole 67b is a hole into which a locking pin 62 is inserted through the shaft hole 63a.

[0064] The outer connecting plate 67 is fixed to the main board 61 at an acute angle, such as Figure 4 As shown, the lower end is supported on the outer side of the wall, thereby supporting the main board 61. An anti-slip component 67e is also provided at the lower end of the outer connecting plate 67. The anti-slip component 67e prevents the outer connecting plate 67 from sliding relative to the wall 11. The outer connecting plate 67 may be made of rubber.

[0065] On the other hand, the support plate 69 refers to a plate-shaped component additionally provided on the outside of the outer connecting plate 67. The support plate 69 is connected to the end hinge portion 61e provided at the end of the main plate 61, such as... Figure 4 As shown, it hangs downwards under the influence of gravity. Connecting shafts 69a are provided on the left and right sides of the upper end of the support plate 69. The connecting shafts 69a can be inserted into and supported at the end hinge portion 61e.

[0066] Furthermore, a support rod 69c, fixed horizontally, is formed at the lower end of the support plate 69. The support rod 69c is a footrest that an escapee, with their abdomen pressed against the main plate 61 and gripping the handle 64, can step on with their toes. As described above, since the escapee can step on the support rod 69c to assume a descending posture before falling, a more stable escape can be achieved.

[0067] The high-rise building escape descent device of the second embodiment has a structure that improves the postural stability of the escapee through an escape assistance unit including an inner connecting plate, an outer connecting plate, and a support plate. Users can use the device in the following manner.

[0068] First, the escape assistance unit 60 is installed on the upper part of the window frame of the window, and the inner connecting plate 65 and the outer connecting plate 67 are unfolded so that they contact the inner and outer sides of the wall, respectively. In this case, the angle between the main board 61 and the inner connecting plate 65 and the outer connecting plate 67 can be maintained by the angle maintaining plate 63 and the locking pin 62.

[0069] After the escapee puts on the harness 35c indoors, steps onto the pedal 66 to climb onto the mainboard 61, then grasps the handle 64 and turns around. The escapee should assume a position with their abdomen pressed against the mainboard 61. Since the handle 64 is rotatable, it rotates naturally according to the escapee's movements, thus improving stability. In this position, the escapee's toes contact the support rod 69c of the support plate 69. The support plate 69 maintains a downward position under gravity, providing stability by supporting the user's feet before descent.

[0070] In this state, the escapee releases handle 64 and begins to descend. As a result, the escapee can begin their descent safely and with peace of mind without looking directly at the ground. This design allows elderly or physically limited users to easily complete the escape maneuver and stabilize their posture before escaping, thus ensuring both safety and psychological stability.

[0071] Although the present invention has been described in detail above through specific embodiments, the present invention is not limited to the described embodiments, and various modifications can be made by those skilled in the art to which the present invention pertains.

[0072] Explanation of reference numerals in the attached figures

[0073] 11: Wall 13: Window frame 20: Descent device 30: Descent unit 31: Anchor bracket 33: Support arm 33a: First ring 33c: Second ring 35: Descent device body 35a: Descent rope 35c: Wearing strap 37: Fall arrest rope 40: Escape assist unit 41: Main board 41a: Recess 41b: Anti-detachment part 42: Lifting eye bolt 43: Extension plate 43a: Locking protrusion 45: Bottom support 45a: Horizontal elongated hole 45c: Inward toothed surface 47: Rotating support plate 47a: Rotating shaft 49: Movable fixing block 49a: Locking tooth 49e: Push stop part 60: Escape assist unit 61: Main board 61c: Mounting hole 61e: End hinge part 62: Locking pin 63: Angle maintaining plate 63a: Shaft hole 63c: Pin hole 64: Handle 64a: Rotating body 64c: Handle body 65: Inner connecting plate 65a: Shaft 65b: Pin hole 65c: Pedal support 66: Pedal 66a: Pedal shaft 67: Outer connecting plate 67a: Shaft 67b: Pin hole 67e: Anti-slip component 69: Support plate 69a: Connecting shaft 69c: Support rod.

Claims

1. A descent device for escape in high-rise buildings, characterized in that, include: Anchor brackets are used to fix the walls around windows and doors in multi-story buildings. The support arm, supported by the anchor bracket, can extend outwards through windows and doors; The descent device body is mounted at the end of the support arm and has a descent rope; as well as The escape assistance unit is connected to the support arm via a fall arrest rope and guides the escapee to safety when detachably installed on the window frame.

2. The high-rise building escape descent device according to claim 1, characterized in that, The escape assistance unit includes: The motherboard is wide enough for an escapee to sit down. A pair of bottom support members are arranged parallel to each other at the bottom of the motherboard and have horizontal elongated holes with inward toothed surfaces formed on their inner surfaces. Multiple movable fixing blocks are adjustablely positioned in the horizontal elongated holes of each bottom support member, and locking teeth are formed on the upper and lower surfaces that can mesh with the inward toothed surface; A pair of rotating support plates, their upper ends rotatably connected to movable fixed blocks on both sides between the bottom support members, and in the downward-extended state, positioned opposite each other across the window frame, can be tightly fitted against the wall; and The push stop is fixed to the movable fixed block. When the rotating support plate rotates, it is pushed by the rotating support plate, so that the movable fixed block meshes with the inward tooth surface.

3. The high-rise building escape descent device according to claim 1, characterized in that, An expansion board that can be pulled out of the motherboard is provided inside the motherboard.

4. The high-rise building escape descent device according to claim 2, characterized in that, The width of the horizontal elongated hole is greater than the height of the movable fixed block, so that the position of the movable fixed block can be adjusted along the length of the horizontal elongated hole inside the hole.

5. The high-rise building escape descent device according to claim 1, characterized in that, The main board is equipped with a plurality of eye bolts for securing the fall arrest rope.

6. A descent device for escape in high-rise buildings, characterized in that, include: Anchor brackets are used to fix the walls around windows and doors in multi-story buildings. The support arm, supported by the anchor bracket, can extend outwards through windows and doors; The descent device body is mounted at the end of the support arm and has a descent rope; The motherboard is connected to the support arm via a fall arrest rope and is hung on the window frame of the window. The inner connecting plate is connected to one end of the main board. When it is fixed to the main board at an acute angle, the entire surface is in contact with the inner surface of the wall. as well as The outer connecting plate is connected to the other end of the main board and fixed to the main board at an acute angle. The lower end is supported by the outer side of the wall to support the main board.

7. The high-rise building escape descent device according to claim 6, characterized in that, The inner connecting plate is equipped with a foot pedal that allows escapees to step onto the main board.

8. The high-rise building escape descent device according to claim 6, characterized in that, The other end of the main board also includes a support plate, the upper end of which is hinged to the main board, and the lower end of which forms a support rod that the escapee can step on with their toes.

9. The high-rise building escape descent device according to claim 6, characterized in that, A shaft serving as a rotation axis is provided at the upper end of the inner connecting plate and the outer connecting plate. The main board is rectangular, with angle-maintaining plates fixed at its four corners. The angle-maintaining plates have shaft holes for inserting shafts into the inner and outer connecting plates, and multiple pin holes arranged at equal angles along the arc direction of a circle centered on the shaft holes. The inner connecting plate and the outer connecting plate have pin holes corresponding to the pin holes. It also includes a locking pin, which is inserted into the pin hole when the pin hole and the pin hole are aligned with each other.

10. The high-rise building escape descent device according to claim 8, characterized in that, The motherboard also includes a handle, allowing survivors who step on the support rod to hold it with their bare hands.

11. The high-rise building escape descent device according to claim 10, characterized in that, The handle includes: A rotating main body is rotatably mounted on the motherboard; and Fix the handle body to the rotating body.

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