CN112144771B - A corridor structure convenient for escape - Google Patents
A corridor structure convenient for escape Download PDFInfo
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- CN112144771B CN112144771B CN202011190765.8A CN202011190765A CN112144771B CN 112144771 B CN112144771 B CN 112144771B CN 202011190765 A CN202011190765 A CN 202011190765A CN 112144771 B CN112144771 B CN 112144771B
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- 238000005452 bending Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 description 10
- 238000000429 assembly Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
- E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/1041—Treads having means to adjust the height, the depth and/or the slope of the stair steps
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
- E04F11/181—Balustrades
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
- E04F11/181—Balustrades
- E04F11/1836—Handrails of balustrades; Connections between handrail members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/18—Balustrades; Handrails
- E04F11/181—Balustrades
- E04F11/1842—Balusters; Grille-type elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
A corridor structure convenient for escape comprises a multilayer corridor, wherein a notch is formed in the corridor, an escape ladder is arranged in the notch, a retraction device is arranged at the top of the corridor at the topmost layer and is in transmission connection with the escape ladder, when the retraction device is unfolded, the escape ladder is lowered, the escape ladder is connected with the next corridor, when the retraction device is retracted, the escape ladder is pulled up, the escape ladder covers and seals the notch, and in an emergency, the retraction device is unfolded to put down the escape ladder, so that a new escape channel is provided for people.
Description
Technical Field
The invention relates to the technical field of escape ladders and house buildings, in particular to a corridor structure convenient for escape.
Background
With the advancement of urban construction, a newly built high-rise building is generally provided with elevators, but a large number of old communities built after the eighth nineties of the last century exist, floors are generally lower than 10 floors, no elevator is installed according to the current situation, a well for installing the elevators is not reserved, and the problem of inconvenient traveling is gradually highlighted with the increase of the ages of residents, so that the existing residential elevator has great market prospect. According to the prior art level to factors such as comprehensive consideration building structure, geographical position, building daylighting, between elevator well and the original building, generally need use the vestibule to connect, the vestibule plays the effect of connecting elevator export and building entry. The building entrance is generally arranged in two forms, one is connected with the middle turning section of the original building stair, and enters the resident layer through the upper half layer and the lower half layer, namely, the resident layer is staggered, and the other is directly connected with the resident layer, which is generally called flat-layer resident.
For a particular project, the building entrance may include only one of the versions, or both, as determined by the engineering practice and the household requirements. However, for the structure of flat landing entrance, the elevator shaft is generally communicated with the private space (balcony, kitchen, living room, etc.) of the original building resident, and can only enter the resident house through the original building stairs, and then go to the elevator exit through the corridor, and when the elevator fault needs rescue, if the resident is not at home at this moment, the rescue staff can not reach the elevator flat landing position.
The purpose of this patent is, under special circumstances, is connected the part of corridor through slewing mechanism and adjacent layer corridor, can go up and down to any layer of building through the emergency ladder. The method has great significance in the two cases that one is a fire disaster, the elevator cannot be used, the adjacent layer corridor is connected through the rotating mechanism to serve as an escape passage, and when the elevator has an emergency fault, a rescuer can reach a corresponding rescue position through telescopic connection of the corridor, so that the risk of property loss caused by using other unconventional modes is avoided.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a corridor structure convenient for escape.
To achieve the purpose, the invention adopts the following technical scheme:
the corridor structure convenient for escape comprises a plurality of corridor layers, wherein a notch is formed in the corridor, an escape ladder is installed in the notch, a retraction device is installed at the top of the corridor at the topmost layer, and the retraction device is in transmission connection with the escape ladder;
when the retraction device is deployed, the escape ladder is lowered and connected with the next corridor;
when the retraction device is retracted, the escape ladder is pulled up, and the escape ladder covers and seals the notch.
Preferably, the retraction device comprises a group of upper beams, a group of lower beams and a plurality of movable rods hinged with each other;
the upper beam and the lower beam are mutually separated 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 sliding groove, both ends of the movable rod facing one side of the upper beam and the lower beam are provided with pulleys, the pulleys at the lower end of the movable rod are placed in the sliding groove, the pulleys at the upper end of the movable rod are propped against the upper surface of the upper beam, the hinge joint of the movable rod is also hinged with a supporting wheel, the supporting wheel is connected with a stay wire, and the stay wire is connected with the escape ladder;
The middle of the supporting wheel is sunken to form a supporting groove, and the guy wires are propped against the surface of the supporting groove and are connected with a plurality of groups of supporting wheels.
Preferably, the escape ladder comprises a ladder body assembly, a handrail structure and a connecting piece, wherein the connecting piece is hinged to the corridor, the connecting piece is hinged to the ladder body assembly, the handrail structure is hinged to a ceiling of the corridor, and the handrail structure is put down together when the ladder body assembly is put down.
Preferably, the connecting piece is a connecting shaft, one end part of the connecting shaft is hinged to a ceiling of a corridor, two sides of the ladder body assembly are both hinged to the connecting shaft, and the connecting shaft is connected with a plurality of groups of ladder body assemblies;
the ladder body assembly comprises a stand column, a top plate, a bottom plate, square tubes and limiting plates, wherein the top and the bottom of the stand column are respectively provided with the top plate and the bottom plate, and the left side and the right side of the top plate extend and protrude out of the stand column;
The limiting plate is arranged between the two groups of upright posts in front, the top of the limiting plate is connected with the top plate, and the bottom of the limiting plate extends forwards and is bent to form a limiting groove;
An imbedding plate is arranged between the two groups of upright posts at the rear part, and the top of the imbedding plate is connected with the top plate;
the square tubes are arranged on two sides of the protruding end of the top plate and protrude out of the rear of the top plate;
The thickness of the imbedding plate is smaller than or equal to the width of the limit groove;
The outside of two sets of rear stand is provided with the hinge hole, the connecting axle articulate in the hinge hole.
Preferably, the end part of the ladder body assembly is provided with a fixed pedal;
the fixed pedal comprises a base and a base plate, wherein the base is fixed between the two groups of upright posts in front, and the bottom of the base is fixedly connected with the bottom plate.
Preferably, the end of the connecting shaft is provided with a connecting column, the connecting column penetrates through and connects the two groups of connecting shafts, one end of the connecting column is provided with a connecting part, and the connecting part is connected with the guy wire.
Preferably, the handrail structure comprises a folding and unfolding piece and a handrail rod, wherein the folding and unfolding piece comprises a sliding rail, a sliding block and a pull rod, the sliding block is arranged in the sliding rail, the lower end face of the sliding block is hinged with the pull rod, and the pull rod is hinged with the handrail rod through a bolt;
The bottom of the ladder body assembly is also provided with a bracket, the bracket is fixed on the lower end face of the bottom plate, the length of the bracket is longer than that of the top extension part, and the grab rail is positioned above the bracket.
Preferably, the connecting piece is a bending piece, and the bending piece comprises a movable plate, a bearing connecting rod and a locking piece, wherein the movable plate comprises an upper plate and side plates at the left side and the right side, the side plates are of an equilateral trapezoid structure, the short side of the trapezoid structure is downward, and the two ends of the bearing connecting rod are connected to the inner sides of the side plates at the left side and the right side of the same movable plate;
The movable plate is provided with a fixed buckle which is hinged with a connecting hole arranged on the other adjacent movable plate;
the lock pieces are arranged between two adjacent groups of bearing connecting rods;
the ladder body assembly comprises a supporting plate and a long ladder plate;
One end of the long ladder plate is movably connected with the movable plate, the supporting plate is arranged below the other end of the long ladder plate, the lower end face of the long ladder plate is provided with a roller, the roller is positioned between the long ladder plate and the supporting plate, and the roller is propped against the surface of the supporting plate;
One end of the supporting plate and the guy wire are arranged, and when the long ladder plate is put down obliquely, the supporting plate is always positioned below the long ladder plate.
Preferably, the handrail structure comprises a hook, a long rod, a hanging rod buckle and a hanging rod;
a plurality of groups of hooks are arranged on the lower end face of the long ladder plate, the hooks protrude out of the long ladder plate,
The hanging hook comprises a plurality of hanging rod buckles, wherein the hanging rod buckles are arranged at the ends of the bending pieces, the hanging rod buckles are arranged at the tops of the hanging rod buckles, the hanging rod buckles are arranged at the other ends of the hanging rod buckles, the hanging rod is connected with the hanging rod buckles, bearings are arranged at the ends, close to the bending pieces, of the hanging rod, and the bearings are hinged to ceiling flowers of the corridor
And a limit nut is arranged at the bottom of the long rod.
Further, the locking piece comprises a U-shaped pipe and a locking head, and the U-shaped pipe and the locking head are detachably installed.
The invention has the beneficial effects that 1, in emergency, the unfolding and folding device can put down the escape ladder so as to provide a new escape passage for people.
2. The retraction device can be arranged on a motor, is started by electric power assistance, and can also realize the movement of the escape ladder by manual pulling under the condition of no electric power assistance.
Drawings
FIG. 1 is a schematic view of a second embodiment of the present invention when retracted;
FIG. 2 is a schematic view of the structure of the second embodiment of the present invention when it is unfolded;
FIG. 3 is a schematic view of a ladder assembly according to a second embodiment of the present invention;
FIG. 4 is a schematic view of another embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of a bending member in a second embodiment of the present invention;
FIG. 6 is a schematic view of a ladder assembly according to the second embodiment of the invention;
Fig. 7 is an enlarged view at B in fig. 6;
FIG. 8 is a schematic view of a handrail structure according to a second embodiment of the present invention;
FIG. 9 is a schematic view of an embodiment of the present invention when retracted;
FIG. 10 is a schematic view of an embodiment of the present invention when retracted;
FIG. 11 is a schematic view of a ladder assembly according to a first embodiment of the invention;
FIG. 12 is a schematic view of a ladder assembly from another perspective in accordance with an embodiment of the invention;
FIG. 13 is a schematic view showing the deployment of a plurality of ladder assemblies according to the first embodiment of the invention;
FIG. 14 is a side view of a plurality of ladder assemblies according to a first embodiment of the invention;
FIG. 15 is a schematic view showing the structure of the armrest according to the first embodiment of the present invention when the armrest structure is extended;
FIG. 16 is a schematic view of the armrest structure of the first embodiment of the present invention when retracted;
FIG. 17 is a side view of the retraction device when retracted;
FIG. 18 is a side view of the retractor with the retractor deployed;
Fig. 19 is a schematic structural view of the retraction device.
Wherein, the corridor 1, the gap 1a, the escape ladder 2, the ladder body component 2a, the handrail structure 2b and the connecting piece 2c
A winding and unwinding device 3, an upper beam 3a, a lower beam 3b, a chute 3ba, a movable rod 3c, a pulley 3ca, an installation space 3d, a supporting wheel 3e, a supporting groove 3ea, a guy wire 4,
Upright post 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, backing plate 7b, connecting column 8, connecting portion 8a, grab bar 9, storage member 10, slide rail 10a, slide block 10b, pull rod 10c, bracket 11,
The bending piece 12, the movable plate 12a, the upper plate 12aa, the side plate 12ab, the connecting hole 12aba, the bearing connecting rod 12b, the lock piece 12c, the U-shaped pipe 12ca, the lock head 12cb, the supporting plate 13a, the roller 13aa, the long ladder plate 13b, the fixed buckle 14, the hook 15, the long rod 16, the limit nut 16a, the hanging rod buckle 17, the hanging rod 18 and the bearing 18a.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, or indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in figures 1 to 19 of the drawings,
The corridor structure convenient for escape comprises a multilayer corridor 1, wherein a notch 1a is formed in the corridor 1, an escape ladder 2 is arranged in the notch 1a, a retraction device 3 is arranged at the top of the topmost corridor 1, and the retraction device 3 is in transmission connection with the escape ladder 2;
When the retraction device 3 is deployed, the escape ladder 2 is lowered, and the escape ladder 2 is connected with the next layer of corridor 1;
when the retraction device 3 is retracted, the escape ladder 2 is pulled up, and the escape ladder 2 covers and seals the notch 1a.
As shown in fig. 17 to 19, preferably, the retraction device 3 includes a set of upper beams 3a, a set of lower beams 3b and a plurality of movable rods 3c hinged with each other;
An installation space 3d is formed between the upper beam 3a and the lower beam 3b, and the movable rod 3c is installed in the installation space 3 d;
The upper surface of the lower beam 3b is provided with a sliding groove 3ba, two ends of the movable rod 3c facing one side of the upper beam 3a and the lower beam 3b are respectively provided with a pulley 3ca, the pulleys 3ca at the lower end of the movable rod 3c are arranged in the sliding groove 3ba, the pulleys 3ca at the upper end of the movable rod 3c are propped against the upper surface of the upper beam 3a, the hinged part of the movable rod 3c is also hinged with a supporting wheel 3e, the supporting wheel 3e is connected with a stay wire 4, and the stay wire 4 is connected with the escape ladder 2;
the middle of the supporting wheel 3e is recessed to form a supporting groove 3ea, and the guy wires 4 are propped against the surface of the supporting groove 3ea and are connected with a plurality of groups of supporting wheels 3e.
As shown in fig. 17, in the state when the retraction device 3 is retracted, when the retraction device 3 is required to be deployed, the stay wire 4 is pulled outwards, the stay wire 4 pulls the movable rod 3c to slide along the sliding groove 3ba, and as a plurality of groups of movable rods 3c are hinged, when pulled, the movable rod 3c rotates to change the connection angle between the movable rod 3c and the movable rod 3c, so that the extension length can be further extended, as shown in fig. 18, when the retraction device 3 is required to be retracted, the height of the upper beam 3a is increased, as a plurality of groups of movable rods 3c are hinged, when the upper beam 3a is lifted up, the movable rod 3c rotates to change the connection angle between the movable rod 3c and the movable rod 3c, and the length of the stay wire 4 in the 3d space is increased, so that the height of the ladder assembly 2a is increased until the gap is covered, and the assembly is put down and retracted.
Preferably, the escape ladder 2 comprises a ladder body assembly 2a, a handrail structure 2b and a connecting piece 2c, wherein the connecting piece 2c is hinged with the corridor 1, the connecting piece 2c is hinged with the ladder body assembly 2a, the handrail structure 2b is hinged with a ceiling of the corridor 1, and the handrail structure 2b is put down together when the ladder body assembly 2a is put down.
In the first embodiment, as shown in fig. 9 to 16:
preferably, the connecting piece 2c is a connecting shaft 6, one end of the connecting shaft 6 is hinged to a ceiling of the corridor 1, two sides of the ladder assembly 2a are both hinged with the connecting shaft 6, and the connecting shaft 6 is connected with a plurality of groups of ladder assemblies 2a;
the ladder body assembly 2a comprises an upright post 5, a top plate 5b, a bottom plate 5c, a square tube 5d and a limiting plate 5e, wherein the top and the bottom of the upright post 5 are respectively provided with the top plate 5b and the bottom plate 5c, and the left side and the right side of the top plate 5b extend and protrude from the upright post 5;
The limiting plate 5e is arranged between the two groups of upright posts 5 in front, the top of the limiting plate 5e is connected with the top plate 5b, and the bottom of the limiting plate 5e extends forwards and is bent to form a limiting groove 5ea;
An imbedding plate 5f is arranged between the two groups of upright posts 5 at the rear part, and the top of the imbedding plate 5f is connected with the top plate 5 b;
The square tubes 5d are arranged on two sides of the protruding end of the top plate 5b, and the square tubes 5d protrude out of the rear of the top plate 5 b;
the thickness of the imbedding plate 5f is smaller than or equal to the width of the limit groove 5 ea;
the outer sides of the two rear groups of upright posts 5 are provided with hinge holes 5aa, and the connecting shaft 6 is hinged to the hinge holes 5aa.
One end of the connecting shaft 6 is hinged to the corridor 1 ceiling during installation, in a normal state, multiple groups of ladder body assemblies 2a are abutted against each other end to form a straight corridor for residents to walk, when an abnormal situation occurs, the connecting shaft 6 rotates downwards, when the connecting shaft rotates downwards, the gravity center of the ladder body assembly 2a changes, and the ladder body assembly 2a rotates forwards along the connecting shaft 6. Because the rear of the top plate 5b is provided with the protruding square tube 5d, when the ladder body assembly 2a rotates, the square tube 5d props against the top plate 5b of the rear ladder body assembly 2a, so that a plurality of groups of ladder body assemblies 2a are prevented from overturning forwards, and the top plate 5b always keeps a horizontal state. When the ladder body assembly 2a is lowered to form a stair, the embedded plate 5f of the ladder body assembly 2a in front is inserted and then is placed in the limit groove 5ea of the ladder body assembly 2a, and the plurality of groups of ladder body assemblies 2a are buckled with each other, so that the stair formed by the ladder body assemblies 2a is more stable and firm, the ladder body assemblies 2a cannot be turned over continuously along the connecting shaft 6, and the stability of the ladder body assemblies 2a in use is ensured.
Preferably, the end of the ladder body assembly 2a is provided with a fixed pedal 7;
The fixed pedal 7 comprises a base 7a and a base plate 7b, wherein the base 7a is fixed between the two groups of upright posts 5 in front, and the bottom of the base 7a is fixedly connected with the bottom plate 5 c.
The fixed pedal 7 is arranged at the end part of the ladder body assembly 2a, which is far away from the hinge joint of the corridor 1, and the gravity of the ladder body assembly 2a at the end part is increased and the gravity center of the ladder body assembly is changed, so that the ladder body assembly 2a is guaranteed to turn forwards, and meanwhile, when the ladder body assembly 2a forms a stair, the fixed pedal 7 is propped against the corridor 1 at the next layer to provide connection between the corridor 1 and the fixed part of the stair.
Preferably, a connecting post 8 is disposed at an end of the connecting shaft 6, the connecting post 8 passes through and connects two groups of connecting shafts 6, a connecting portion 8a is disposed at one end of the connecting post 8, and the connecting portion 8a is connected with the guy wire 4.
The connection portion 8a may be a pull tab, and the ladder assembly 2a is lifted or lowered by pulling or lowering the guy wire 4. The connecting column 8 passes through the two connecting shafts 6 at the same horizontal position, so that the stress of the ladder body assembly is more balanced when the guy wire 4 is pulled, the ladder body assembly is more stably deformed when the ladder body assembly is deformed, and the guy wire 4 can be connected with a motor in a transmission manner or can be pulled manually.
Preferably, the handrail structure 2b comprises a receiving and releasing member 10 and a handrail rod 9, wherein the receiving and releasing member 10 comprises a sliding rail 10a, a sliding block 10b and a pull rod 10c, the sliding block 10b is arranged in the sliding rail 10a, the lower end surface of the sliding block 10b is hinged with the pull rod 10c, and the pull rod 10c is hinged with the handrail rod 9 through a bolt;
The bottom of the ladder body assembly 2a is further provided with a bracket 11, the bracket 11 is fixed on the lower end face of the bottom plate 5c, the length of the bracket 11 is longer than that of the top extension part, and the grab rail 9 is located above the bracket 11.
One end of the grab rail 9 is hinged with the ceiling of the corridor 1, and the grab rail 9 is arranged at the side of the ladder body component 2a. The retractable member 10 is also fixedly arranged on the ceiling of the corridor 1. When the ladder body assembly 2a is lowered, the grab rail 9 is simultaneously lowered, one end of the grab rail 9 is hinged with the pull rod 10c, the pull rod 10c is influenced by gravity of the grab rail 9 and moves towards the grab rail 9, the sliding block 10b connected with the other end of the pull rod 10c slides together until the sliding block 10b reaches the tail end of the sliding rail 10a. At this time, the pull rod 10c and the grab bar 9 stop moving. The pull rod 10c pulls the grab bar 9 to prevent the grab bar 9 from continuously turning downwards, so that a hand of a person can hold the grab bar 9 when the person uses the stair formed by the ladder body assembly 2a, and the stair descending is safer.
When the ladder body assembly 2a is changed into a stair, the bracket 11 can be propped against the surface of the stair of the next layer, and plays a role in supporting the ladder body assembly 2a, so that the stair which is changed into the ladder body assembly 2a is more stable and firm. The length of the bracket 11 is longer than that of the top plate 5b, and when the bracket 11 returns, the bracket 11 can prop and support the grab rail 9, so that the grab rail 9 is recovered, and when the ladder assembly 2a is lowered, the bracket 11 is lowered simultaneously, and the grab rail 9 loses support, so that the bracket and the ladder assembly 2a rotate together.
In the second embodiment, as shown in fig. 1!8:
Preferably, the connecting piece 2c is a bending piece 12, the bending piece 12 includes a movable plate 12a, a bearing connecting rod 12b and a locking piece 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 of an equilateral trapezoid structure, the short sides of the trapezoid structure are downward, and 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 12 a;
the connecting hole 12aba at one end of the side plate 12ab is provided with a fixed buckle 14 in a connecting way, and the movable plate is provided with the fixed buckle 14 which is hinged with the connecting hole 12aba provided by the other adjacent movable plate;
the lock pieces 12c are arranged between two adjacent groups of the bearing connecting rods 12 b;
The ladder body assembly 2a comprises a supporting plate 13a and a long ladder plate 13b;
One end of the long ladder plate 13b is movably connected with the movable plate 12a, the supporting plate 13a is arranged below the other end of the long ladder plate 13b, the lower end surface of the long ladder plate 13b is provided with a roller 13aa, the roller 13aa is positioned between the long ladder plate 13b and the supporting plate 13a, and the roller 13aa is propped against the surface of the supporting plate 13 a;
One end of the supporting plate 13a is connected with the guy wire 4, and the supporting plate 13a is always positioned below the long ladder plate 13b when the long ladder plate 13b is obliquely put down.
In a usual state, the top of the guy wire 4 is fixed on the ceiling of the corridor 1, and the bending piece 12 and the ladder body assembly 2a are straightened into a straight corridor of the corridor 1 for residents to walk. When an abnormal situation occurs, the guy wires 4 are put down, when the guy wires 4 are put down, the ladder body assembly 2a loses supporting force, so that the ladder body assembly 2a can be inclined downwards along with the lowering of the guy wires 4, at the moment, due to the fact that rigid connection is not formed between the bending pieces 12, the movable plates 12a can incline due to the gravity of the ladder body assembly 2a, due to the fact that the movable plates 12a are of isosceles trapezoid structures, certain gaps exist between the side edges of the side plates 12ab and the side edges of the adjacent side plates 12ab, when the movable plates 12a incline, the side edges of the adjacent two groups of side plates 12ab are mutually propped against each other, the bending piece 12 is bent integrally, the angle of bending of the bending piece 12 can be adjusted through adjusting the inclination angle of the side edges of the side plates 12ab, and therefore the ladder body assembly 2a can be lowered in a smooth transition mode, and damage to the ladder body assembly 2a can not be caused when the ladder body assembly is put down.
The connection relationship between two different side plates 12ab and 12ab on the same side is that the fixed buckle 14 of one side plate 12ab is buckled in the connection hole 12aba of the other side plate 12ab to realize connection, the connection relationship between the movable plate 12a and the movable plate 12a is reinforced, one end of the connection hole 12aba is inclined upwards, when the ladder assembly 2a is put down, a movable space can be provided for the buckling end of the fixed buckle 14, the fixed buckle 14 is prevented from being locked, the movable plate 12a cannot bend, and the side plate 12ab can fix the fixed buckle 14 in a welding or screw-nut matching mode.
A bearing connecting rod 12b is connected between two side plates 12ab of the same movable plate 12a, the bearing connecting rod 12b can strengthen the stability of the movable plate 12a, a locking piece 12c is arranged between two adjacent groups of bearing connecting rods 12b, the locking piece 12c is buckled to prevent the curvature of the movable plate 12a from exceeding the maximum value when the movable plate 12a is inclined, and the horizontal and stable of the movable plates 12a when the movable plate is horizontal are ensured.
The lower end face of the long ladder plate 13b is provided with a roller 13aa, the supporting plate 13a supports the long ladder plate 13b through the roller 13aa in a normal state to prevent the long ladder plate 13b from inclining, and when the long ladder plate 13b is required to be inclined and put down, the guy wire 4 is put down, at the moment, the roller 13aa rotates to enable the long ladder plate 13b to move from one side of the supporting plate 13a to the other side of the supporting plate 13a in the putting down process, so that the effect of connecting the next layer of corridor is achieved.
The supporting plate 13a can be limited by the length of the supporting plate 13a, so that the supporting plate 13a is always positioned below the long ladder plate 13b, when the ladder body assembly 2a is pulled back upwards, the stay wire 4 pulls the supporting plate 13a, the long ladder plate 13b is pulled by the supporting plate 13a when the supporting plate 13a ascends due to the fact that the end part of the long ladder plate 13b is positioned above the supporting plate 13a, and the roller 13aa slides into between the supporting plate 13a and the long ladder plate 13b again due to the position change of the long ladder plate 13b, and the roller 13aa continuously supports the long ladder plate 13b.
Preferably, the handrail structure 2b comprises a hook 15, a long rod 16, a hanging rod buckle 17 and a hanging rod 18;
A plurality of groups of hooks 15 are arranged on the lower end face of the long ladder plate 13b, the hooks 15 protrude out of the long ladder plate 13b,
The protruding part of the hook 15 is sleeved with a long rod 16, the top of the long rod 16 is buckled at one end of a hanging rod buckle 17, the other end of the hanging rod buckle 17 is penetrated by a hanging rod 18, the hanging rod 18 is connected with a plurality of groups of hanging rod buckles 17, the end part of the hanging rod 18, which is close to the bending piece 12, is provided with a bearing 18a, and the bearing 18a is hinged with a ceiling of the corridor 1
The bottom of the long rod 16 is provided with a limit nut 16a.
The bearing 18a of the hanging rod 18 can be hinged to the ceiling of the corridor 1, when the ladder assembly 2a is required to be lowered, the hanging rod 18 can incline downwards along with the hanging rod, and the hanging hook 15 can slide downwards along the long rod 16 due to gravity and slide to the limit nut 16a to stop sliding. A structure similar to a corridor 1 escalator is formed between the hanging rods 18 and the long rods 16, the hanging rods 18 provide supporting places for people, the long rods 16 erect and limit the two sides of the long ladder plate 13b, and children are prevented from falling from the two sides of the long ladder plate 13 b.
Further, the locking member 12c includes a U-shaped tube 12ca and a locking head 12cb, and the U-shaped tube 12ca is detachably mounted to the locking head 12 cb.
When the U-shaped pipe 12ca is installed, the blind end of the U-shaped pipe 12ca is placed in the bearing connecting rod 12b, the U-shaped pipe 12ca spans across two groups of the bearing connecting rods 12b, after the U-shaped pipe 12ca is inserted, the tapered end 12cb can be used for closing the open end of the U-shaped pipe 12ca, and due to detachable installation, the tapered end 12cb can control the locking length of the U-shaped pipe 12ca, so that the maximum value of the bending degree of the movable plate 12a when the movable plate is inclined can be adjusted.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
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| CN202011190765.8A CN112144771B (en) | 2020-10-30 | 2020-10-30 | A corridor structure convenient for escape |
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| CN202011190765.8A CN112144771B (en) | 2020-10-30 | 2020-10-30 | A corridor structure convenient for escape |
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| KR102248825B1 (en) * | 2021-03-12 | 2021-05-06 | 주식회사 수건축사사무소 | Building Safety Stairs |
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| CN104746817A (en) * | 2015-03-26 | 2015-07-01 | 河北工业大学 | PLC-based novel building external escaping ladder |
| CN214423807U (en) * | 2020-10-30 | 2021-10-19 | 广东标的加装电梯有限公司 | Corridor structure convenient for escape |
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| CA886967A (en) * | 1970-06-11 | 1971-11-30 | Booth Frederick | Fire escape |
| JPS5129594B2 (en) * | 1972-04-12 | 1976-08-26 | ||
| TW456458U (en) * | 2000-12-29 | 2001-09-21 | Chen Chwan Yuh | Improved escape stair structure |
| TWM471286U (en) * | 2013-08-21 | 2014-02-01 | Qing-Huang Li | Improved concealed emergency escape ladder for balcony |
| CN205116588U (en) * | 2015-11-22 | 2016-03-30 | 孙丽娟 | Novel household stair system |
| CN108360768A (en) * | 2018-04-27 | 2018-08-03 | 宁波市海曙发辉机械科技有限公司 | A kind of electronic folding stair |
| CN108756100A (en) * | 2018-06-25 | 2018-11-06 | 吉壳（成都）现代农业科技有限公司 | One kind can folding and unfolding stair |
| CN110017098B (en) * | 2019-05-05 | 2024-01-26 | 广西路桥工程集团有限公司 | Step ladder box two-in-one device and stirring station with same |
| CN110665132B (en) * | 2019-10-10 | 2021-07-16 | 东南大学 | A fast escape device for underground space without energy consumption |
| CN110725491B (en) * | 2019-10-25 | 2024-05-07 | 沈阳建筑大学 | Escape railing device |
| CN111632287A (en) * | 2020-04-17 | 2020-09-08 | 鸿厦建设有限公司 | Escape stair for outer wall |
| CN111663729A (en) * | 2020-05-18 | 2020-09-15 | 甘南县昊钢科技有限公司 | Folding stair |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104746817A (en) * | 2015-03-26 | 2015-07-01 | 河北工业大学 | PLC-based novel building external escaping ladder |
| CN214423807U (en) * | 2020-10-30 | 2021-10-19 | 广东标的加装电梯有限公司 | Corridor structure convenient for escape |
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Address after: 529728 No.366 Xinxing Road, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province Applicant after: Guangdong Biaodi Elevator Co.,Ltd. Address before: 529728 No.366 Xinxing Road, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province Applicant before: Lingwang ideal elevator (Guangdong) Co.,Ltd. |
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