A corridor structure convenient for escape

Abstract

A corridor structure for convenient escape comprises a multi-layer corridor, wherein a gap is provided in the corridor, an escape ladder is installed in the gap, a retracting device is installed at the top of the corridor on the top floor, and the retracting device is transmission-connected with the escape ladder; when the retracting device is unfolded, the escape ladder is lowered, and the escape ladder is connected to the corridor on the next floor; when the retracting device is folded, the escape ladder is pulled up, and the escape ladder covers and closes the gap; in an emergency, the retracting device can be unfolded to lower the escape ladder to provide a new escape passage for people.

Description

Technical Field

[0001] The invention relates to the technical field of escape ladders and house construction, in particular to a staircase structure for convenient escape. Background Art

[0002] With the advancement of urbanization, new high-rise buildings are generally equipped with elevators, but there are still a large number of old residential areas built after the 1980s and 1990s, with floors generally less than 10 floors. According to the situation at the time, there were no elevators installed, and there were no shafts reserved for installing elevators. As the age of residents increases, the problem of inconvenience in travel gradually becomes prominent. Therefore, there is a great market prospect for installing elevators in existing residential buildings. According to the existing technical level, and taking into account factors such as building structure, geographical location, and building lighting, the elevator shaft and the original building are generally connected by a corridor, which serves to connect the elevator exit and the building entrance. There are generally two forms of building entrances. One is to connect the middle turning section of the original building staircase, and then enter the resident floor through the upper and lower floors, that is, staggered entry; the other is to go directly to the resident floor, which we usually call flat-floor entry.

[0003] For a specific project, the building entrance can include only one type or both types, depending on the actual project and the needs of the residents. However, for the structure of flat-floor entrance, the elevator shaft is generally connected to the private space (balcony, kitchen, living room, etc.) of the original building residents. The residents can only enter the house through the original building stairs and then go to the elevator exit through the corridor. When the elevator fails and rescue is needed, if the residents are not at home at this time, the rescuers cannot reach the elevator flat position.

[0004] The purpose of this patent is to connect part of the corridor to the corridor of the adjacent floor through a rotating mechanism under special circumstances, so that people can go up and down to any floor of the building through the escape ladder. This method is of great significance in the following two situations: one is the situation of fire, the elevator cannot be used, and the corridors of adjacent floors are connected by a rotating mechanism as an escape route; the other situation is that when the elevator has an emergency failure, the rescuers can reach the corresponding rescue position through the telescopic connection of the corridor, avoiding the risk of property loss caused by using other unconventional methods. Summary of the invention

[0005] In view of the above-mentioned defects, the object of the present invention is to provide a corridor structure that facilitates escape.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A corridor structure for convenient escape comprises a multi-layer corridor, wherein a gap is provided in the corridor, an escape ladder is installed in the gap, a retracting device is installed at the top of the top corridor, and the retracting device is transmission-connected to the escape ladder;

[0008] When the retractable device is unfolded, the escape ladder is lowered, and the escape ladder is connected to the corridor of the next floor;

[0009] When the retractable device is retracted, the escape ladder is pulled up, and the escape ladder covers and closes the gap.

[0010] Preferably, the retractable device comprises a set of upper beams, a set of lower beams and a plurality of movable rods hinged to each other;

[0011] The upper beam and the lower beam are spaced apart from each other by an installation space, and the movable rod is installed in the installation space;

[0012] The upper surface of the lower beam is provided with a slide groove, and pulleys are provided at both ends of the movable rod facing the upper beam and the lower beam. The pulley at the lower end of the movable rod is placed in the slide groove, and the pulley at the upper end of the movable rod is against the upper surface of the upper beam. The movable rod is also hinged with a support wheel at the hinge, and the support wheel is connected with a pull line, and the pull line is connected to the escape ladder;

[0013] The middle of the support wheel is recessed to form a support groove, and the pull wire is against the surface of the support groove to connect multiple groups of the support wheels.

[0014] Preferably, the escape ladder includes a ladder body assembly, a handrail structure and a connecting piece, the connecting piece is hinged to the corridor, the connecting piece is hinged to the ladder body assembly, and the handrail structure is hinged to the ceiling of the corridor; when the ladder body assembly is lowered, the handrail structure is lowered together.

[0015] Preferably, the connecting member is a connecting shaft, one end of which is hinged to the ceiling of the corridor, and both sides of the ladder assembly are hinged with the connecting shaft, and the connecting shaft connects multiple groups of the ladder assembly;

[0016] The ladder assembly comprises: a column, a top plate, a bottom plate, a square tube and a limit plate, wherein the top plate and the bottom plate are respectively arranged at the top and the bottom of the column, and the left and right sides of the top plate extend and protrude from the column;

[0017] The limiting plate is arranged between the two groups of columns in the front, the top of the limiting plate is connected to the top plate, and the bottom of the limiting plate extends forward and bends to form a limiting groove;

[0018] An insert plate is provided between the two groups of the rear columns, and the top of the insert plate is connected to the top plate;

[0019] The square tubes are arranged on both sides of the protruding end of the top plate, and the square tubes protrude from the rear of the top plate;

[0020] The thickness of the insertion plate is less than or equal to the width of the limiting groove;

[0021] The outer sides of the two rear groups of upright posts are provided with hinge holes, and the connecting shafts are hinged to the hinge holes.

[0022] Preferably, a fixed pedal is provided at the end of the ladder assembly;

[0023] The fixed pedal comprises: a base and a pad, the base is fixed between the two front groups of columns, and the bottom of the base is fixedly connected to the bottom plate.

[0024] Preferably, a connecting column is provided at the end of the connecting shaft, and the connecting column passes through and connects the two groups of connecting shafts. A connecting portion is provided at one end of the connecting column, and the connecting portion is connected to the pull wire.

[0025] Preferably, the armrest structure comprises a retractable member and an armrest rod, the retractable member comprises: a slide rail, a slider, and a pull rod, the slider is arranged in the slide rail, the lower end surface of the slider is hinged to the pull rod, and the pull rod is hinged to the armrest rod through a latch;

[0026] A bracket is also provided at the bottom of the ladder assembly. The bracket is fixed to the lower end surface of the bottom plate. The length of the bracket is longer than the length of the top extension portion. The handrail rod is located above the bracket.

[0027] Preferably, the connecting member is a bent member, and the bent member includes: a movable plate, a bearing connecting rod and a locking member, the movable plate includes an upper plate and side plates on the left and right sides, the side plates are equilateral trapezoidal structures, the short sides of the trapezoidal structures are downward, and the two ends of the bearing connecting rod are connected to the inner sides of the left and right side plates of the same movable plate;

[0028] The connecting hole at one end of the side plate is connected with a fixing buckle at the other end; the fixing buckle of the movable plate is hinged with the connecting hole of another adjacent movable plate;

[0029] The locking element is arranged between two adjacent groups of the bearing connecting rods;

[0030] The ladder assembly includes a support plate and a long ladder plate;

[0031] One end of the long ladder board is movably connected to the movable board, the supporting board is arranged below the other end of the long ladder board, and a roller is arranged on the lower end surface of the long ladder board, the roller is located between the long ladder board and the supporting board, and the roller abuts against the surface of the supporting board;

[0032] One end of the supporting plate is connected to the pulling wire; when the long ladder plate is tilted and lowered, the supporting plate is always located below the long ladder plate.

[0033] Preferably, the handrail structure includes a hook, a long rod, a hanging rod buckle and a hanging rod;

[0034] The lower end surface of the long ladder plate is provided with a plurality of hooks, and the hooks protrude from the long ladder plate.

[0035] The protruding part of the hook is covered with a long rod, the top of the long rod is buckled on one end of the hanging rod buckle, the other end of the hanging rod buckle is passed through by a hanging rod, the hanging rod is connected to multiple groups of hanging rod buckles, and the end of the hanging rod close to the bent piece is provided with a bearing; the bearing is hinged to the ceiling of the corridor.

[0036] A limiting nut is arranged at the bottom of the long rod.

[0037] Furthermore, the locking element comprises a U-shaped tube and a locking head, and the U-shaped tube and the locking head are detachably mounted.

[0038] The beneficial effects of the present invention are as follows: 1. In an emergency, the unfolding of the retractable device can lower the escape ladder to provide a new escape route for people.

[0039] 2. The retractable device can be installed on a motor and started with electric assistance, or the escape ladder can be moved by manual pulling without electric assistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of the structure of the second embodiment of the present invention when it is folded;

[0041] Figure 2 is a schematic diagram of the structure of the second embodiment of the present invention when it is unfolded;

[0042] Figure 3 is a schematic structural diagram of the ladder assembly when the ladder body assembly of the second embodiment of the present invention is folded;

[0043] Figure 4 is a structural schematic diagram of another angle of embodiment 2 of the present invention;

[0044] Figure 5 is a schematic structural diagram of a bending member in Embodiment 2 of the present invention;

[0045] Figure 6 is a schematic structural diagram of the ladder assembly when the second embodiment of the present invention is unfolded;

[0046] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0047] Figure 8 is a structural schematic diagram of the handrail structure in the second embodiment of the present invention;

[0048] Fig. 9 is a schematic diagram of the structure of the first embodiment of the present invention when it is folded;

[0049] Fig.10 is a schematic diagram of the structure of the first embodiment of the present invention when it is folded;

[0050] Fig.11 It is a structural schematic diagram of the ladder assembly in the first embodiment of the present invention;

[0051] Fig.12 is a structural schematic diagram of the ladder assembly in Embodiment 1 of the present invention from another perspective;

[0052] Fig.13 It is a schematic diagram of the structure of multiple ladder body components deployed in the first embodiment of the present invention;

[0053] Fig.14 is a side view of a plurality of ladder assemblies in Embodiment 1 of the present invention being folded;

[0054] Fig.15 is a schematic structural diagram of the handrail structure in the first embodiment of the present invention when it is unfolded;

[0055] Fig.16 is a schematic structural diagram of the handrail structure in the first embodiment of the present invention when it is folded;

[0056] Fig.17 is a side view of the retractable device when it is retracted;

[0057] Fig.18 is a side view of the retractable device when it is deployed;

[0058] Fig.19 It is a structural schematic diagram of the retractable device.

[0059] Among them: corridor 1, gap 1a, escape ladder 2, ladder assembly 2a, handrail structure 2b, connector 2c

[0060] The retractable device 3, the upper beam 3a, the lower beam 3b, the slide groove 3ba, the movable rod 3c, the pulley 3ca, the installation space 3d, the support wheel 3e, the support groove 3ea, the pull line 4,

[0061] Column 5a, hinge hole 5aa, top plate 5b, bottom plate 5c, square tube 5d, limit plate 5e, limit groove 5ea, insertion plate 5f, connecting shaft 6, fixed pedal 7, base 7a, pad 7b, connecting column 8, connecting part 8a, handrail 9, retractable member 10, slide rail 10a, slider 10b, pull rod 10c, bracket 11,

[0062] Bending part 12, movable plate 12a, upper plate 12aa, side plate 12ab, connecting hole 12aba, bearing connecting rod 12b, locking piece 12c, U-shaped tube 12ca, locking head 12cb, supporting plate 13a, roller 13aa, long ladder plate 13b, fixing buckle 14, hook 15, long rod 16, limiting nut 16a, hanging rod buckle 17, hanging rod 18, bearing 18a. DETAILED DESCRIPTION

[0063] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0064] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] like Figures 1 to 19 As shown,

[0068] A corridor structure for convenient escape comprises a multi-layer corridor 1, wherein the corridor 1 is provided with a gap 1a, wherein an escape ladder 2 is installed in the gap 1a, and a retracting device 3 is installed at the top of the top corridor 1, wherein the retracting device 3 is transmission-connected to the escape ladder 2;

[0069] When the retractable device 3 is unfolded, the escape ladder 2 is lowered, and the escape ladder 2 is connected to the corridor 1 on the next floor;

[0070] When the retractable device 3 is retracted, the escape ladder 2 is pulled up, and the escape ladder 2 covers and closes the gap 1a.

[0071] like Figures 17 to 19 As shown, preferably, the retracting and releasing device 3 includes a group of upper beams 3a, a group of lower beams 3b and a plurality of movable rods 3c hinged to each other;

[0072] The upper beam 3a and the lower beam 3b are separated by an installation space 3d, and the movable rod 3c is installed in the installation space 3d;

[0073] A slide groove 3ba is provided on the upper surface of the lower beam 3b, and pulleys 3ca are provided at both ends of the movable rod 3c facing the upper beam 3a and the lower beam 3b. The pulley 3ca at the lower end of the movable rod 3c is placed in the slide groove 3ba, and the pulley 3ca at the upper end of the movable rod 3c is against the upper surface of the upper beam 3a. A support wheel 3e is also hinged at the hinge of the movable rod 3c, and the support wheel 3e is connected to a pull line 4, and the pull line 4 is connected to the escape ladder 2;

[0074] The middle of the support wheel 3e is recessed to form a support groove 3ea, and the pull wire 4 is against the surface of the support groove 3ea and connects multiple groups of the support wheels 3e.

[0075] like Fig.17 As shown in the figure, it is the state when the retractable device 3 is retracted. When the retractable device 3 needs to be unfolded, the pull wire 4 is pulled outward, and the pull wire 4 pulls the movable rod 3c to slide along the slide groove 3ba. Since the multiple groups of movable rods 3c are hinged, when being pulled, the movable rod 3c will rotate, changing the connection angle between the movable rods 3c and the movable rods 3c, so that a longer length can be unfolded, as shown in FIG. Fig.18 As shown; when the retractable device 3 needs to be folded up, the height of the upper beam 3a is raised. Since the multiple groups of movable rods 3c are hinged, when they are lifted up by the upper beam 3a, the movable rods 3c will rotate, changing the connection angle between the movable rods 3c and the movable rods 3c. The length of the pull line 4 in the 3d space increases, thereby raising the height of the ladder body assembly 2a until it covers the gap, thereby realizing the lowering and folding of the ladder assembly.

[0076] Preferably, the escape ladder 2 includes a ladder body assembly 2a, a handrail structure 2b and a connecting member 2c, the connecting member 2c is hinged to the corridor 1, the connecting member 2c is hinged to the ladder body assembly 2a, and the handrail structure 2b is hinged to the ceiling of the corridor 1; when the ladder body assembly 2a is lowered, the handrail structure 2b is lowered together.

[0077] Embodiment 1: Figures 9 to 16 As shown:

[0078] Preferably, the connecting member 2c is a connecting shaft 6, one end of which is hinged to the ceiling of the corridor 1, and both sides of the ladder assembly 2a are hinged with the connecting shaft 6, and the connecting shaft 6 connects multiple groups of the ladder assembly 2a;

[0079] The ladder assembly 2a includes: a column 5, a top plate 5b, a bottom plate 5c, a square tube 5d and a limit plate 5e. The top plate 5b and the bottom plate 5c are respectively provided at the top and bottom of the column 5, and the left and right sides of the top plate 5b extend and protrude from the column 5;

[0080] The limiting plate 5e is disposed between the two groups of columns 5 in the front, the top of the limiting plate 5e is connected to the top plate 5b, and the bottom of the limiting plate 5e is extended forward and bent to form a limiting groove 5ea;

[0081] An insert plate 5f is provided between the two groups of the rear columns 5, and the top of the insert plate 5f is connected to the top plate 5b;

[0082] The square tubes 5d are provided on both sides of the protruding end of the top plate 5b, and the square tubes 5d protrude from the rear of the top plate 5b;

[0083] The thickness of the insertion plate 5f is less than or equal to the width of the limiting groove 5ea;

[0084] The outer sides of the two rear groups of upright posts 5 are provided with hinge holes 5aa, and the connecting shafts 6 are hinged to the hinge holes 5aa.

[0085] During installation, one end of the connecting shaft 6 is hinged to the ceiling of the corridor 1. In normal conditions, multiple groups of the ladder assemblies 2a are placed end to end to form a straight corridor for residents to walk. When an abnormal situation occurs, the connecting shaft 6 rotates downward. During the downward rotation, the center of gravity of the ladder assemblies 2a changes, and the ladder assemblies 2a rotate forward along the connecting shaft 6. Since a protruding square tube 5d is provided at the rear of the top plate 5b, when the ladder assemblies 2a rotate, the square tube 5d supports the top plate 5b of the rear ladder assemblies 2a, preventing the multiple groups of the ladder assemblies 2a from flipping forward, so that the top plate 5b always remains in a horizontal state. When the ladder body assembly 2a is lowered to form a staircase, the insertion plate 5f of the front ladder body assembly 2a is inserted into the limiting groove 5ea of ​​the rear ladder body assembly 2a, and multiple groups of ladder body assemblies 2a are interlocked with each other, so that the staircase formed by the ladder body assemblies 2a is more stable and strong. The ladder body assembly 2a cannot continue to flip along the connecting shaft 6, thereby ensuring the stability of the ladder body assembly 2a when in use.

[0086] Preferably, a fixed pedal 7 is provided at the end of the ladder assembly 2a;

[0087] The fixed pedal 7 includes a base 7a and a pad 7b. The base 7a is fixed between the two front groups of the uprights 5, and the bottom of the base 7a is fixedly connected to the bottom plate 5c.

[0088] The fixed pedal 7 is arranged at the end of the ladder body assembly 2a away from the hinge of the corridor 1, which increases the gravity of the ladder body assembly 2a at the end and changes its center of gravity, ensuring that the ladder body assembly 2a flips forward; at the same time, when the ladder body assembly 2a forms a staircase, the fixed pedal 7 is against the corridor 1 of the next floor, providing a connection between the corridor 1 and the fixed part of the staircase.

[0089] Preferably, a connecting column 8 is provided at the end of the connecting shaft 6, and the connecting column 8 passes through and connects the two groups of connecting shafts 6. A connecting portion 8a is provided at one end of the connecting column 8, and the connecting portion 8a is connected to the pull wire 4.

[0090] The connecting portion 8a can be a pull ear, and the ladder assembly 2a can be raised or lowered by pulling or lowering the pull wire 4. The connecting column 8 passes through two connecting shafts 6 at the same horizontal position, so that the force on the ladder assembly is more balanced when the pull wire 4 is pulled, and the deformation is more stable when deforming. The pull wire 4 can be connected to the motor transmission or can be pulled manually.

[0091] Preferably, the handrail structure 2b includes a retractable member 10 and a handrail rod 9, the retractable member 10 includes: a slide rail 10a, a slider 10b, and a pull rod 10c, the slider 10b is arranged in the slide rail 10a, the lower end surface of the slider 10b is hinged to the pull rod 10c, and the pull rod 10c is hinged to the handrail rod 9 through a latch;

[0092] A bracket 11 is also provided at the bottom of the ladder assembly 2 a . The bracket 11 is fixed to the lower end surface of the bottom plate 5 c . The length of the bracket 11 is longer than the length of the top extension portion. The handrail rod 9 is located above the bracket 11 .

[0093] One end of the handrail 9 is hinged to the ceiling of the corridor 1, and the handrail 9 is arranged on the side of the ladder assembly 2a. The retractable member 10 is also fixedly arranged on the ceiling of the corridor 1. When the ladder assembly 2a is lowered, the handrail 9 is lowered at the same time, and one end of the handrail 9 is hinged to the pull rod 10c. The pull rod 10c is affected by the gravity of the handrail 9 and moves in the direction of the handrail 9. The other end of the pull rod 10c is connected to the slider 10b, and the slider 10b slides together until the slider 10b reaches the end of the slide rail 10a. At this time, the pull rod 10c and the handrail 9 stop moving. The pull rod 10c pulls the handrail 9 to prevent it from continuing to flip downward. When people use the stairs formed by the ladder assembly 2a, people can hold the handrail 9 with their hands, which is safer when going down the stairs.

[0094] When the ladder assembly 2a is transformed into a staircase, the bracket 11 can abut against the surface of the staircase of the next layer, playing a role in supporting the ladder assembly 2a, making the staircase transformed by the ladder assembly 2a more stable and firm. The length of the bracket 11 is longer than the top plate 5b. When returning, the bracket 11 can support the handrail 9 to retract the handrail 9. When the ladder assembly 2a is lowered, the bracket 11 is lowered at the same time, and the handrail 9 loses support, so it will rotate together with the ladder assembly 2a.

[0095] Embodiment 2: Figure 1 ! 8 shows:

[0096] Preferably, the connecting member 2c is a bending member 12, and the bending member 12 includes: a movable plate 12a, a bearing connecting rod 12b and a locking member 12c, the movable plate 12a includes an upper plate 12aa and side plates 12ab on the left and right sides, the side plates 12ab are equilateral trapezoidal structures, the short sides of the trapezoidal structures are downward, and the two ends of the bearing connecting rod 12b are connected to the inner sides of the side plates 12ab on the left and right sides of the same movable plate 12a;

[0097] The connecting hole 12aba at one end of the side plate 12ab is connected with a fixing buckle 14 at the other end; the fixing buckle 14 of the movable plate is hinged with the connecting hole 12aba of another adjacent movable plate;

[0098] The locking member 12c is disposed between two adjacent groups of the bearing connecting rods 12b;

[0099] The ladder assembly 2a includes a support plate 13a and a long ladder plate 13b;

[0100] One end of the long ladder plate 13b is movably connected to the movable plate 12a, the support plate 13a is arranged below the other end of the long ladder plate 13b, and a roller 13aa is arranged on the lower end surface of the long ladder plate 13b, the roller 13aa is located between the long ladder plate 13b and the support plate 13a, and the roller 13aa abuts against the surface of the support plate 13a;

[0101] One end of the support plate 13a is connected to the pull line 4; when the long ladder plate 13b is tilted and lowered, the support plate 13a is always located below the long ladder plate 13b.

[0102] In a normal state, the top of the pull wire 4 is fixed on the ceiling of the corridor 1, and the bent member 12 and the ladder assembly 2a are straightened to form a straight corridor of the corridor 1 for residents to walk. When an abnormal situation occurs, the pull wire 4 is lowered. When the pull wire 4 is lowered, the ladder body assembly 2a loses its supporting force, and as the pull wire 4 is lowered, the ladder body assembly 2a will also tilt downward. At this time, since there is no rigid connection between the bending parts 12, the movable plates 12a will tilt due to the gravity of the ladder body assembly 2a. Since the movable plates 12a are isosceles trapezoidal structures, there is a certain gap between the side edges of the side panels 12ab and the side edges of the adjacent side panels 12ab. When tilting, the side edges of the two adjacent groups of side panels 12ab offset each other, so that the bending part 12 bends as a whole. The overall bending angle of the bending part 12 can be adjusted by adjusting the inclination angle of the side edges of the side panels 12ab, so that the ladder body assembly 2a can be smoothly transitioned and lowered when it is lowered, without causing damage to the ladder body assembly 2a.

[0103] The connection between the two different side panels 12ab and the side panels 12ab on the same side is achieved by buckling the fixing buckle 14 of one side panel 12ab into the connecting hole 12aba of the other side panel 12ab, thereby strengthening the connection between the movable panels 12a and 12a; and one end of the connecting hole 12aba is inclined upward, so that when the ladder assembly 2a is lowered, it can provide space for the buckled end of the fixing buckle 14 to move, thereby preventing the fixing buckle 14 from being locked and causing the movable panel 12a to be unable to bend. The side panel 12ab can fix the fixing buckle 14 by welding or by means of screws and nuts.

[0104] A bearing connecting rod 12b is connected between the two side plates 12ab of the same movable plate 12a, and the bearing connecting rod 12b can reinforce the stability of the movable plate 12a. A locking piece 12c is arranged between two adjacent groups of the bearing connecting rods 12b, and the locking piece 12c is buckled to prevent the bending degree of the movable plate 12a from exceeding the maximum value when tilted, and also ensures the levelness and stability of these movable plates 12a when horizontal.

[0105] The lower end surface of the long ladder board 13b is provided with a roller 13aa. In the normal state, the support plate 13a supports the long ladder board 13b through the roller 13aa to prevent the long ladder board 13b from tilting. When the long ladder board 13b needs to be tilted and lowered, the pull wire 4 is lowered. At this time, the roller 13aa can rotate to make the long ladder board 13b move from one side of the support plate 13a to the other side of the support plate 13a during the lowering process, so as to achieve the effect of connecting the next floor corridor.

[0106] The pallet 13a can be limited by its own length so that the pallet 13a is always located below the long ladder board 13b. When the ladder body assembly 2a is pulled back upward, the pull wire 4 pulls the pallet 13a. Since the end of the long ladder board 13b is located above the pallet 13a, when the pallet 13a rises, the pallet 13a will also pull the long ladder board 13b at the same time. The roller 13aa will slide back between the pallet 13a and the long ladder board 13b due to the change in the position of the long ladder board 13b, and the roller 13aa continues to support the long ladder board 13b.

[0107] Preferably, the handrail structure 2b includes a hook 15, a long rod 16, a hanging rod buckle 17 and a hanging rod 18;

[0108] The lower end surface of the long ladder plate 13b is provided with a plurality of hooks 15, and the hooks 15 protrude from the long ladder plate 13b.

[0109] The protruding part of the hook 15 is covered with a long rod 16, the top of the long rod 16 is buckled on one end of the hanging rod buckle 17, the other end of the hanging rod buckle 17 is passed through by a hanging rod 18, the hanging rod 18 connects multiple groups of hanging rod buckles 17, and the end of the hanging rod 18 close to the bent member 12 is provided with a bearing 18a; the bearing 18a is hinged to the ceiling of the corridor 1

[0110] A limiting nut 16a is disposed at the bottom of the long rod 16 .

[0111] The bearing 18a of the hanging rod 18 can be hinged on the ceiling of the corridor 1. When the ladder assembly 2a needs to be lowered, the hanging rod 18 will tilt downward, and the hook 15 will slide down along the long rod 16 due to gravity, and slide to the limit nut 16a to stop sliding. The hanging rod 18 and the multiple groups of long rods 16 will form a structure similar to the escalator in the corridor 1. The hanging rod 18 provides a place for people to support, and the long rods 16 are set up and limit the two sides of the long ladder board 13b to prevent children from falling from the two sides of the long ladder board 13b.

[0112] Furthermore, the locking element 12c includes a U-shaped tube 12ca and a locking head 12cb, and the U-shaped tube 12ca and the locking head 12cb are detachably mounted.

[0113] During installation, the blind end of the U-shaped tube 12ca is placed into the bearing connecting rod 12b, and the U-shaped tube 12ca spans across two sets of the bearing connecting rods 12b. After the U-shaped tube 12ca is inserted, the locking head 12cb can be used to close the open end of the U-shaped tube 12ca. Since it is a detachable installation, the locking head 12cb can control the locking length of the U-shaped tube 12ca, thereby adjusting the maximum curvature of the movable plate 12a when tilting.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0115] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A corridor structure for facilitating escape, characterized in that: It comprises a multi-layer corridor, wherein the corridor is provided with a gap, wherein an escape ladder is installed in the gap, and a retracting device is installed at the top of the corridor at the top floor, wherein the retracting device is transmission-connected with the escape ladder; When the retractable device is unfolded, the escape ladder is lowered, and the escape ladder is connected to the corridor of the next floor; When the retractable device is retracted, the escape ladder is pulled up, and the escape ladder covers and closes the gap; The escape ladder comprises a ladder assembly, a handrail structure and a connecting piece, wherein the connecting piece is hinged to the staircase, the connecting piece is hinged to the ladder assembly, and the handrail structure is hinged to the ceiling of the staircase; when the ladder assembly is lowered, the handrail structure is lowered together; The connecting piece is a connecting shaft or a bending piece; When the connecting member is a connecting shaft, one end of the connecting shaft is hinged to the ceiling of the corridor, and both sides of the ladder assembly are hinged with the connecting shaft, and the connecting shaft connects multiple groups of the ladder assembly; When the connecting member is a bending member, the bending member includes: a movable plate, a bearing connecting rod and a locking member, the movable plate includes an upper plate and side plates on the left and right sides, the side plates are equilateral trapezoidal structures, the short sides of the trapezoidal structures are downward, and the two ends of the bearing connecting rod are connected to the inner sides of the left and right side plates of the same movable plate; The connecting hole at one end of the side plate is connected with a fixing buckle at the other end; the fixing buckle of the movable plate is hinged with the connecting hole of another adjacent movable plate; The locking element is arranged between two adjacent groups of the bearing connecting rods; The retractable device comprises a set of upper beams, a set of lower beams and a plurality of movable rods hinged to each other; The upper beam and the lower beam are spaced apart from each other by an installation space, and the movable rod is installed in the installation space; The upper surface of the lower beam is provided with a slide groove, and pulleys are provided at both ends of the movable rod facing the upper beam and the lower beam. The pulley at the lower end of the movable rod is placed in the slide groove, and the pulley at the upper end of the movable rod is against the upper surface of the upper beam. The movable rod is also hinged with a support wheel at the hinge, and the support wheel is connected with a pull line, and the pull line is connected to the escape ladder; The middle of the support wheel is recessed to form a support groove, and the pull wire is against the surface of the support groove and connects multiple groups of support wheels; When the connecting member is a connecting shaft, the ladder assembly includes: a column, a top plate, a bottom plate, a square tube and a limit plate, the top plate and the bottom plate are respectively arranged at the top and the bottom of the column, and the left and right sides of the top plate extend and protrude from the column; The limiting plate is arranged between the two groups of columns in the front, the top of the limiting plate is connected to the top plate, and the bottom of the limiting plate extends forward and bends to form a limiting groove; An insert plate is provided between the two groups of the rear columns, and the top of the insert plate is connected to the top plate; The square tubes are arranged on both sides of the protruding end of the top plate, and the square tubes protrude from the rear of the top plate; The thickness of the insertion plate is less than or equal to the width of the limiting groove; The outer sides of the two rear groups of uprights are provided with hinge holes, and the connecting shafts are hinged to the hinge holes; A connecting column is provided at the end of the connecting shaft, and the connecting column passes through and connects the two groups of connecting shafts. A connecting portion is provided at one end of the connecting column, and the connecting portion is connected to the pull wire; When the connecting piece is a bent piece, the ladder assembly includes a supporting plate and a long ladder plate; One end of the long ladder board is movably connected to the movable board, the supporting board is arranged below the other end of the long ladder board, and a roller is arranged on the lower end surface of the long ladder board, the roller is located between the long ladder board and the supporting board, and the roller abuts against the surface of the supporting board; One end of the support plate is connected to the pull line; when the long ladder plate is tilted and lowered, the support plate is always located below the long ladder plate; The locking element comprises a U-shaped tube and a locking head, and the U-shaped tube and the locking head are detachably mounted.

2. A corridor structure for facilitating escape according to claim 1, characterized in that: A fixed pedal is provided at the end of the ladder assembly; The fixed pedal comprises: a base and a pad, the base is fixed between the two front groups of columns, and the bottom of the base is fixedly connected to the bottom plate.

3. A corridor structure for facilitating escape according to claim 1, characterized in that: The handrail structure includes a retractable member and a handrail rod, the retractable member includes: a slide rail, a slider, and a pull rod, the slider is arranged in the slide rail, the lower end surface of the slider is hinged to the pull rod, and the pull rod is hinged to the handrail rod through a latch; A bracket is also provided at the bottom of the ladder assembly. The bracket is fixed to the lower end surface of the bottom plate. The length of the bracket is longer than the length of the top extension portion. The handrail rod is located above the bracket.

4. A corridor structure for facilitating escape according to claim 1, characterized in that: The handrail structure includes a hook, a long rod, a hanging rod buckle and a hanging rod; The lower end surface of the long ladder plate is provided with a plurality of hooks, and the hooks protrude from the long ladder plate. The protruding part of the hook is covered with a long rod, the top of the long rod is buckled on one end of the hanging rod buckle, the other end of the hanging rod buckle is passed through by a hanging rod, the hanging rod is connected to multiple groups of hanging rod buckles, and the end of the hanging rod close to the bent piece is provided with a bearing; the bearing is hinged to the ceiling of the corridor; A limiting nut is arranged at the bottom of the long rod.

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