CN111794671A - Outdoor emergency ladder of formula aluminum alloy folded form is climbed to list - Google Patents

Abstract

The invention belongs to the field of outdoor self-rescue and escape of buildings, and relates to a single-climbing aluminum alloy folding type outdoor escape ladder, wherein a foldable inlet slow-walking pedal is hinged between an inlet wall-attached frame and the bottom of an inlet protective frame in an inlet unit, a ladder stand unit comprises an upper ladder wall-attached frame and an upper ladder protective frame, an upper folding ladder is fixedly installed on the left side or the right side of the upper ladder wall-attached frame, a foldable ladder stand slow-walking pedal is hinged between the upper ladder wall-attached frame and the bottom of the upper ladder protective frame, a lower ladder stand unit is fixedly installed on the upper ladder wall-attached frame and the upper ladder protective frame in a gap formed by the inlet slow-walking pedal and the ladder slow-walking pedal, and the lower ladder stand unit comprises a lower ladder wall-attached frame fixedly installed with a lower folding ladder stand and a stair protective net, so as to solve the problem that the existing escape route of the outdoor escape ladder is provided with complicated, The anti-theft performance is poor, the assembly and disassembly are inconvenient, and the structure linkage triggering opening can not be realized.

Description

Outdoor emergency ladder of formula aluminum alloy folded form is climbed to list

Technical Field

The invention belongs to the field of outdoor self-rescue escape of buildings, and relates to a single-climbing aluminum alloy folding type outdoor escape ladder, in particular to a single-climbing aluminum alloy folding type outdoor escape ladder used in high-rise residents and high-rise public office places, such as natural disasters, fire accidents and the like, which cannot resist disasters.

Background

With the development of society and the shortage of land resources, short buildings are less and less, people are also used to live in high-rise buildings, but once dangerous situations occur in the high-rise buildings, people can only passively wait for rescue or use the escape ladder to escape. When a fire disaster occurs in a multilayer or high-rise building, people can only evacuate through fire-fighting channels in the building, then fire rescue is waited, after the fire-fighting channels in the building are blocked by smoke or fire, or fire-fighting tools cannot reach the fire-fighting degree, trapped people are difficult to escape, and the escape environment temperature is rapidly increased, so that various escape modes are more difficult, meanwhile, people can rescue completely by relying on external people, the personal safety and health cannot be guaranteed, and the casualties of the escaping people can be easily caused. Because the existing fire rescue means can not adapt to the development speed of high-rise buildings, a novel outdoor escape ladder needs to be designed and developed according to the technical conditions of fire-fighting escape equipment and the fire characteristics of the high-rise buildings.

The general fixed mounting of present outdoor emergency ladder is in the building outside, and whole open in outdoor, owing to all outdoor, so be difficult for receiving the threat of firework, smoke-proof effect and economic nature are all better, can link up the window outside platform ladder of each floor, can climb out of the window when meetting the emergency situation and directly climb up the emergency ladder and flee. Can be used for evacuating people and also can be used for fire fighters to climb to a high building for rescuing. Structurally, the simple overhanging mode is mainly adopted, and the indoor effective building area is not occupied.

However, the escape ladder on the market at present has the following problems in the using process:

1. when people are evacuated when a fire disaster comes, the escape routes of the people are set more complexly, the escape efficiency is low, and the popularization of the escape ladder is not facilitated.

2. The existing outdoor escape ladder is generally lack of protection devices for protection and does not have a slow walking platform, when people evacuate downwards, the people are likely to fall due to the lack of protection devices under the condition that the people are more, the people can not have a rest in time and can not be adjusted when the physical strength is insufficient in the evacuation process of some old and weak people, and the escape probability is greatly reduced.

3. The outdoor escape building with the existing outdoor escape ladder connected with the windows of all floors is easy to be used by thieves, and directly climbs indoors through the escape ladder, thus causing life and property loss of house owners.

4. The existing outdoor escape ladder is made of steel materials mostly, the self weight is large, the connection mode mainly adopts welding, the assembly and disassembly are inconvenient, the steel stair structure is complex, the surface treatment mode is single, and the individual requirements are difficult to meet. The steel belongs to the non-recyclable material and does not meet the environmental protection requirement.

5. The existing outdoor escape ladder generally needs to be manually opened by means of external force layer by layer in the escape and falling process when a fire disaster happens, and the structure linkage triggering opening cannot be realized.

Disclosure of Invention

In view of the above, the invention provides a single-climbing type aluminum alloy folding type outdoor escape ladder, which is used for solving the problems that the existing outdoor escape ladder has complicated escape route arrangement, poor anti-theft performance, large self weight, low bearing capacity, inconvenient assembly and disassembly, poor corrosion resistance and incapability of realizing structural linkage triggering opening.

In order to achieve the above object, the present invention provides a single-climbing aluminum alloy folding type outdoor escape ladder, comprising an entrance unit and a ladder stand unit which are integrally formed, wherein the entrance unit comprises an entrance wall-attached frame attached to a building and an entrance protection frame corresponding to the entrance wall-attached frame, a foldable entrance slow-walking pedal is hinged between the entrance wall-attached frame and the bottom of the entrance protection frame, the ladder stand unit comprises an upper ladder unit extended along the entrance unit and a lower ladder unit fixedly installed at the bottom of the upper ladder unit and matched with the upper ladder unit, the upper ladder unit comprises an upper ladder wall-attached frame extended along the entrance wall-attached frame and attached to the building and an upper ladder protection frame extended from the entrance protection frame, an upper folding ladder stand is fixedly installed at the left end or the right end of the upper ladder wall-attached frame, and a foldable ladder slow-walking pedal is hinged at a position corresponding to the upper folding ladder stand at the bottom of the upper ladder wall-attached frame and the upper ladder protection frame, the lower crawling ladder unit is fixedly arranged on an upper crawling ladder wall-attached frame and an upper crawling ladder protective frame in a gap formed by the inlet slow-stepping pedal and the crawling ladder slow-stepping pedal, and comprises a lower crawling ladder wall-attached frame fixedly provided with a lower folding crawling ladder and a stair protective net corresponding to the lower crawling ladder wall-attached frame.

The beneficial effect of this basic scheme: the entry unit is convenient for evacuees to enter the escape device, and meanwhile, an escape entrance can be provided for the evacuees above the ladder slow stepping pedal in the upper ladder climbing unit. The upper folding crawling ladder in the upper crawling ladder unit is convenient for the old and the infant to step on the upper folding crawling ladder to slowly enter the escape device. The escape personnel who get into escape device slowly gets into the escape device outside the next floor along the import and slowly step on the lower folding cat ladder that down in the cat ladder unit and step on along the clearance that slowly step footboard and cat ladder slowly step on gradually, slowly climbs to the escape device of lower floor in proper order. And the ladder climbing slow stepping pedal can protect personnel when the personnel are evacuated, can provide a place for the evacuation personnel with insufficient physical strength to have a rest and adjust, and improves the escape efficiency.

Furthermore, an inlet wall-attached frame and an inlet protective frame which are far away from one side of the ladder stand unit are hinged with foldable upper frame handrails, and a lower ladder stand wall-attached frame and a foldable lower frame handrail are hinged between the left side and the right side of the stair protection net. Has the advantages that: the upper frame handrail and the lower frame handrail play a role in protecting the safety of the escape personnel.

Further, the last wall ladder that attaches one side relative with the frame handrail has the middle part to rotate the cross support of being connected between articulated between wall frame and the last ladder protective frame, and the last wall ladder that cross support below attaches wall frame and rotates on the last ladder protective frame and installs the slide bar that the cover established the pressure spring, and slide bar upper portion cover is equipped with the lantern ring of connection in the cross support bottom. Has the advantages that: after the escape opening mechanism is opened by collision, the pressure spring recovers deformation and extrudes the lantern ring upwards, so that the cross support is opened, and further the whole escape device is opened.

Further, the import attaches wall frame and the inboard movable mounting in last wall frame upper end with the climbing ladder has the bracing piece, and the import attaches wall frame and the inboard fixed mounting in last wall frame upper end with the climbing ladder has the joining in marriage to detain, and bracing piece bottom fixed mounting has the cover to join in marriage the snap ring of detaining, and the bracing piece overlaps through the snap ring and is detained in the joining in marriage, and import protective frame and the inboard fixed mounting in last climbing ladder protective frame upper end have detain the couple of detaining in the joining in marriage. Has the advantages that: the folding locking of the whole escape device is realized through the matching of the hook and the matching buckle.

Further, the import attaches the tip that wall frame is close to last frame handrail one end and wears to be equipped with the gravity pole, the import attaches that wall frame upper end inboard articulates there is the pull rod of free end cover on the gravity pole, the one end fixed mounting that the bracing piece is close to the gravity pole has first spring, be provided with the connecting rod between first spring and the pull rod, the one end and the first spring coupling of connecting rod, the other end fixed mounting of connecting rod has the wedge, set up on the pull rod with the draw-in groove of wedge looks adaptation, install the second spring between wedge and the pull rod. Has the advantages that: the gravity rod is in the import and is attached the wall frame and shuttle back and forth and can trigger the escape device who opens the outer stair of next floor, and the gravity rod that the wall frame glides downwards along the import and strike the one deck promptly, and the wedge of connecting rod is extracted from the pull rod simultaneously, and the second spring between connecting rod wedge tip and the pull rod and the first spring between connecting rod and the bracing piece all resume deformation, and the snap ring on the bracing piece outwards removes and will get in touch from joining in marriage the slippage, and import protective framework and the ladder protective framework that climbs slide down.

Further, the import attaches wall frame, goes up the cat ladder and attaches wall frame and lower cat ladder and attaches the equal fixed mounting of wall frame tip of L type fixed block who sets up threaded hole. Has the advantages that: the whole outdoor escape device is fixed on a wall outside a balcony of a high-rise building by inserting a proper bolt fastener into a threaded hole of the fixing block.

Furthermore, a folding support is arranged between the wall-attached upper ladder frame and the top of the protective upper ladder frame, and the folding support is a telescopic rod. Has the advantages that: the telescopic rod-shaped folding support is convenient for unfolding and fixing the whole escape device.

Furthermore, anti-slip edges or anti-slip lines are arranged on the upper frame handrail and the lower frame handrail. Has the advantages that: the anti-slip edges or the anti-slip lines of the upper frame handrail and the lower frame handrail can reduce accidents caused by slipping of the escape personnel in the escape process.

Furthermore, the inlet slow-stepping pedal and the crawling ladder slow-stepping pedal are provided with anti-skid edges or anti-skid lines. Has the advantages that: the anti-skidding edges or the anti-skidding lines on the inlet slow-stepping pedal and the crawling ladder slow-stepping pedal can reduce accidents caused by skidding of escape personnel in the escape process.

Furthermore, the limiting block for preventing the gravity rod from slipping is integrally formed at the upper end part of the gravity rod. Has the advantages that: the limiting block plays a role in preventing the gravity rod from slipping off from the wall-attached frame.

The invention has the beneficial effects that:

1. the single-climbing type aluminum alloy folding outdoor escape ladder disclosed by the invention has the following advantages:

(1) when a fire disaster happens to the single-climbing folding escape ladder, the automatic device is unfolded through simple starting and is connected with the same folding escape ladder on the lower layer to form a firm and smooth descending channel, the escape path is simple, and the escape efficiency of people is high.

(2) The single-climbing folding escape ladder is provided with the ladder slow-stepping pedal, so that the ladder can be protected when people are evacuated, a place for rest adjustment can be provided for the evacuated people with insufficient physical strength, and the escape probability of the people can be improved to a certain degree.

(3) The single-climbing folding escape ladder is arranged outside a window at ordinary times and can be used as an anti-theft window, and the safety of a house is improved.

(4) The single-climbing folding escape ladder mainly uses aluminum alloy materials, is strong in machinability, light in self weight, high in bearing capacity, convenient to assemble on site, strong in corrosion resistance, various in surface treatment modes, capable of being customized (powder spraying, electrophoresis and oxidation), capable of improving the hardness and the wear resistance of an escape system, long in service life and low in maintenance cost.

(5) Each layer of the single-climbing type folding escape ladder is provided with an opening device and an upper layer trigger device, and the opening device linkage trigger device triggers the lower layer of ladder to open through the gravity rod to quickly form an escape passage so as to strive for more escape time for escape personnel.

2. The single-climbing type aluminum alloy folding outdoor escape ladder disclosed by the invention has the advantages that the escape route design is simple, the escape efficiency is high, the ladder slow-stepping pedal is arranged, the escape ladder can provide rest for escape personnel, the protection performance is good, the anti-theft performance is improved, the aluminum alloy material is adopted, the self weight of a product is reduced, the bearing capacity is improved, the problems of inconvenience in assembly and disassembly, poor corrosion resistance and short service life of the original escape ladder are solved, the structural design of an escape system is optimized, the strength and the stability of the product are enhanced, the attractiveness of the product is improved through various surface treatment modes of aluminum alloy sections, the personalized customization is realized, the market demand is met, the escape structures of all layers are quickly opened through a system opening mechanism, the time is saved, the personnel evacuation efficiency is improved, and the safety of personnel on the fire scene is.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of the single-climbing aluminum alloy folding type outdoor escape ladder of the present invention after being unfolded;

FIG. 2 is a schematic structural view of the folded single-climbing aluminum alloy folding outdoor escape ladder of the present invention;

FIG. 3 is a schematic structural view of a triggering device in the single-climbing type aluminum alloy foldable escape ladder of the present invention;

FIG. 4 is an assembly view of the drawbar, link, and brace bar of FIG. 3;

fig. 5 is a view showing a state of use of the single climbing type aluminum alloy folding outdoor escape ladder of the present invention.

Reference numerals: the device comprises an entrance wall-attached frame 11, an entrance protective frame 12, an upper frame handrail 13, an entrance slow-stepping pedal 14, an upper ladder wall-attached frame 21, an upper ladder protective frame 22, a ladder slow-stepping pedal 23, an expansion rod 24, a support rod 25, a cross support 26, a slide rod 27, an upper folding ladder 28, a lower ladder wall-attached frame 31, a stair protection net 32, a lower frame handrail 33, a lower folding ladder 34, a gravity rod 41, a pull rod 42, a connecting rod 43, a first spring 44, a second spring 45, a matching buckle 46, a clamping ring 47 and a hook 48.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

The single-climbing aluminum alloy folding type outdoor escape ladder shown in figures 1-2 is attached to the outer wall of a public house, is arranged on a balcony in a folding state as a falling-proof frame at ordinary times, and can be unfolded to be used as an escape device flexibly in emergency.

This outdoor emergency ladder protrusion of single-climbing formula aluminum alloy folded form in building outer wall, including integrated into one piece's entering unit and cat ladder unit, the entering unit attaches wall frame 11 and corresponds the import protective frame 12 that the import attaches wall frame 11 including the import of adhering to on the building, and fixed mounting has five import guardrails on the import protective frame 12, and the import guardrail is used for protecting the personnel of fleing. An inlet wall-attached frame 11 and an inlet protective frame 12 far away from one side of the ladder climbing unit are hinged with a foldable upper frame handrail 13, a foldable inlet slow stepping pedal 14 is hinged between the inlet wall-attached frame 11 of the upper frame handrail 13 and the bottom of the inlet protective frame 12, the upper frame handrail 13 is hinged at a centering position through a hinge, a pair of four-corner frames is formed by taking the hinge as a center, the inlet slow stepping pedal 14 is hinged at the centering position through the hinge, and two ends of the inlet slow stepping pedal are respectively hinged at the bottom of the inlet wall-attached frame 11 and the bottom of the inlet protective frame 12, so that the upper frame handrail 13 can be folded when not used, the space is saved, and meanwhile, an escape person with short or inconvenient actions in a high-rise building can conveniently pull the upper frame handrail. The upper frame handrail 13 is provided with anti-slip edges or anti-slip lines, so that accidents caused by slipping of the escape personnel in the escape process are reduced.

The ladder stand unit comprises an upper ladder stand unit and a lower ladder stand unit, wherein the upper ladder stand unit is extended along the entering unit, and the lower ladder stand unit is fixedly installed at the bottom of the upper ladder stand unit and matched with the upper ladder stand unit. The unit of going up the ladder includes that it attaches wall frame 11 extension and attaches to the last ladder on the building along the import and attaches wall frame 21 and extend in the last ladder protective frame 22 of import protective frame 12, the position fixed mounting who goes up the ladder and attaches wall frame 21 centering about has two montants, it has five horizontal folding cat ladders 28 to keep away from the last ladder that gets into unit one side to attach wall frame 21 and montant between fixed mounting, it attaches wall frame 21 and last ladder protective frame 22 bottom and the position that last folding cat ladder 28 corresponds to articulate to have folding cat ladder slow-step footboard 23, cat ladder slow-step footboard 23 is articulated respectively in last cat ladder and attaches wall frame 21 and last ladder protective frame 22 bottom through hinge and both ends in centering position. Two folding supports are welded between the top of the upper wall-attached frame 21 and the top of the upper wall-attached frame 22, and the folding supports are telescopic rods 24. The inner sides of the upper ends of the inlet wall-attached frame 11 and the upper wall-attached frame 21 are movably provided with support rods 25. The last ladder that attaches one side relative with last frame handrail 13 has the middle part to rotate the cross support 26 of being connected between articulated between wall frame 21 and the last ladder protective frame 22, and the last ladder that cross support 26 below attaches wall frame 21 and rotates on the last ladder protective frame 22 longeron and installs the slide bar 27 that the cover established the pressure spring, and the last ladder attaches wall frame 21 and goes up to rotate on the ladder protective frame 22 longeron and installs the angle aluminium that the through-hole was seted up in the middle part, and slide bar 27 movable sleeve is in the through-hole of angle aluminium. The upper portion of slide bar 27 cover is equipped with the lantern ring of connecting in cross brace 26 bottom, and after the opening mechanism that flees (being the bracing piece) was opened by the striking, the pressure spring recovered the deformation and upwards extrudeed the lantern ring for cross brace 26 opens, and then makes whole escape device open.

In the single-climbing foldable escape ladder trigger device shown in fig. 3-4, the inlet wall-attached frame 11 and the upper wall-attached frame 21 are fixedly provided with the matching buckle 46 at the inner side of the upper end, the bottom of the support rod 25 is fixedly provided with the snap ring 47 sleeved on the matching buckle 46, the support rod 25 is sleeved on the matching buckle 46 through the snap ring 47, the inlet protective frame 12 and the upper wall-attached protective frame 22 are fixedly provided with the hook 48 buckled on the matching buckle 46 at the inner side of the upper end, and the folding locking of the whole escape ladder trigger device is realized through the matching of the hook 48 and the matching buckle 46. The end part of the inlet wall-attached frame 11 close to one end of the upper frame handrail 13 is provided with a gravity rod 41 in a penetrating way, and the end part of the upper end of the gravity rod 41 is provided with a limiting block for preventing the gravity rod from slipping in an integrated forming way. The inner side of the upper end of the inlet wall-attached frame 11 is hinged with a pull rod 42 with a free end sleeved on the gravity rod 41, one end of the support rod 25 close to the gravity rod 41 is fixedly provided with a first spring 44, when the escape device is in a folded state, the first spring 44 is in a compressed state, a connecting rod 43 is arranged between the first spring 44 and the pull rod 42, one end of the connecting rod 43 is connected with the first spring 44, the other end of the connecting rod 43 is fixedly provided with a wedge-shaped block, and a clamping groove matched with the wedge-shaped block is formed in the pull rod 42. A second spring 45 is arranged between the wedge-shaped block and the pull rod 42, and when the escape device is in the folded state, the second spring 45 is in a compressed state.

Lower cat ladder unit fixed mounting is on the last cat ladder that imported slowly steps footboard 14 and cat ladder slowly steps footboard 23 attaches wall frame 21 and last cat ladder protective frame 22, and lower cat ladder unit can assemble at last cat ladder and attaches the left side or the right side of wall frame 21 and last cat ladder protective frame 22 bottom, only need follow the mouth slowly step footboard 14, the clearance that cat ladder slowly steps footboard 23 formed relatively can. As shown in fig. 3, the lower ladder climbing units are sequentially arranged at the middle or the right side of each escape unit at intervals, so that the evacuees can slowly escape. The lower ladder stand unit comprises a lower ladder stand attaching wall frame 31 fixedly provided with five lower folding ladder stands 34 and a stair protection net 32 corresponding to the lower ladder stand attaching wall frame 31, a foldable lower frame handrail 33 similar to the left side of the inlet unit is hinged between the left and right sides of the lower ladder stand attaching wall frame 31 and the stair protection net 32, and the lower frame handrail 33 is hinged through a hinge at a centering position. The upper ladder unit is propped open under the action of restoring force of a pressure spring on the sliding rod, and the lower ladder unit is driven to prop open. The lower frame handrail 33 is provided with anti-slip ribs or anti-slip lines, so that accidents caused by slipping of the escape personnel in the escape process are reduced.

The end parts of the inlet wall-attached frame 11, the upper ladder wall-attached frame 21 and the lower ladder wall-attached frame 31 are fixedly provided with L-shaped fixing blocks with threaded holes, and the whole outdoor escape device is fixed on a wall body outside a balcony of a high-rise building by inserting proper bolt fasteners into the threaded holes of the fixing blocks.

The single-climbing type aluminum alloy folding outdoor escape ladder is suitable for high-rise buildings, is made of aluminum alloy materials, has high bearing capacity, and can resist erosion caused by rain, snow, wind and frost for years. The life saving ladder is arranged outside the high-rise building and is in a folded state in weekdays. Once a fire disaster occurs, the escape ladder is connected with the following folded escape ladder layer by simply starting and unfolding the automatic device to form a firm and smooth descending channel, so that people in the fire disaster threat can escape downwards. The high-rise building lifesaving equipment provides practical and effective equipment for saving and saving lives of people and also provides a new idea for resolving life risks in the critical condition of the high-rise building.

When the single-climbing type aluminum alloy folding outdoor escape ladder is not used, the whole escape device is in a folding state, as shown in figure 2. The whole escape apparatus is fixed to a wall outside a balcony of a high-rise building by inserting appropriate bolt fasteners into fixing blocks outside the entrance parapet frame 11, the upper ladder parapet frame 21 and the lower ladder parapet frame 31. Hooks 48 at the inner sides of the upper ends of the entrance guard frame 12 and the upper-climbing guard frame 22 are hooked on the corresponding buckles 46, and snap rings 47 of the support rods 25 are sleeved on the corresponding buckles 46. The end part of the lower end of the gravity rod 41 in the trigger device does not extend out of the inlet wall-attached frame 11, the wedge-shaped block at the end part of the connecting rod 43 is clamped in the groove of the pull rod 42, the second spring 45 between the end part of the wedge-shaped block of the connecting rod 43 and the pull rod 42 is in a compressed state, the first spring 44 between the connecting rod 43 and the support rod 25 is also in a compressed state, one end of the pull rod 42 is sleeved on the gravity rod 41, and the other end of the pull rod 42 is rotatably installed on the inner side of the upper.

When the single-climbing aluminum alloy folding type outdoor escape ladder shown in fig. 5 is used, firstly, the trigger device on one side of the entering unit is opened, namely the gravity rod 41 slides downwards along the entrance wall-attached frame 11 to impact the gravity rod 41 on the next layer, the wedge-shaped block of the connecting rod 43 is pulled out from the pull rod 42, the second spring 45 between the end part of the wedge-shaped block of the connecting rod 43 and the pull rod 42 and the first spring 44 between the connecting rod 43 and the supporting rod 25 recover the deformation, the snap ring 47 on the supporting rod 25 moves outwards to slide the hook 48 off the snap ring 46, the entrance protective frame 12 and the upper ladder protective frame 22 slide down, the telescopic rod 24 props the entrance protective frame 12 and the upper ladder protective frame 22, and the compression springs sleeved outside the sliding rods 27 on the wall-attached frame and the protective frame longitudinal beams gradually recover the deformation to open the cross supports 26, and the entrance wall-attached frame 11 and the upper handrail 13 on the left side of the entrance protective frame 12, The lower frame handrails 33 on the two sides of the lower ladder climbing unit, the inlet slow-stepping pedal 14 and the ladder slow-stepping pedal 23 are all opened, so that the opening of the single unit of the single-climbing type aluminum alloy folding outdoor escape ladder is completed, the gravity rods 41 sequentially impact the gravity rods 41 of the lower-layer escape units, and the single-climbing type aluminum alloy folding outdoor escape ladder outside the high-rise building is sequentially opened.

The aluminum alloy folding outdoor escape ladder consists of an entrance unit and a ladder climbing unit. In case of emergency such as fire, people escape from the room to the outside or lower floor of the building.

1. Starting an aluminum alloy rotary type outdoor escape opening device (gravity rod 41);

2. under the matching action of the gravity rod 41, the pull rod 42 and the connecting rod 43, the entering unit and the ladder climbing unit are horizontally unfolded;

3. the aluminum alloy folding outdoor escape ladder continuously expands under the linkage effect, and escape personnel sequentially escape along the escape ladder.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. A single-climbing aluminum alloy folding outdoor escape ladder is characterized by comprising an entry unit and a ladder stand unit which are integrally formed, wherein the entry unit comprises an inlet wall-attached frame attached to a building and an inlet protective frame corresponding to the inlet wall-attached frame, a foldable inlet slow-stepping pedal is hinged between the inlet wall-attached frame and the bottom of the inlet protective frame, the ladder stand unit comprises an upper ladder unit and a lower ladder unit, the upper ladder unit is extended along the entry unit, the lower ladder unit is fixedly mounted at the bottom of the upper ladder unit and is matched with the upper ladder unit, the upper ladder unit comprises an upper ladder wall-attached frame and an upper ladder protective frame, the upper ladder wall-attached frame is extended along the inlet wall-attached frame and is attached to the building, the upper ladder protective frame is extended from the inlet protective frame, an upper folding ladder stand is fixedly mounted at the left end or the right end of the upper ladder wall-attached frame, and a position, corresponding to the upper folding ladder stand, at the bottom of the, the lower crawling ladder unit is fixedly arranged on an upper crawling ladder wall-attached frame and an upper crawling ladder protective frame in a gap formed by the inlet slow-stepping pedal and the crawling ladder slow-stepping pedal, and comprises a lower crawling ladder wall-attached frame fixedly provided with a lower folding crawling ladder and a stair protective net corresponding to the lower crawling ladder wall-attached frame.

2. The single-climbing aluminum alloy folding type outdoor escape ladder as claimed in claim 1, wherein a foldable upper frame handrail is hinged between the entrance wall-attached frame and the entrance guard frame on the side away from the ladder unit, and a foldable lower frame handrail is hinged between the lower ladder wall-attached frame and the left and right sides of the stair protection net.

3. The single-climbing aluminum alloy folding outdoor escape ladder as claimed in claim 2, wherein a cross brace with a middle part rotatably connected is hinged between the upper wall-attached frame and the upper wall-attached frame at the side opposite to the handrail of the upper frame, a slide bar sleeved with a compression spring is rotatably mounted on the upper wall-attached frame and the upper wall-attached frame below the cross brace, and a lantern ring connected to the bottom end of the cross brace is sleeved on the upper part of the slide bar.

4. The single-climbing aluminum alloy folding type outdoor escape ladder as claimed in claim 3, wherein the inner sides of the upper ends of the inlet wall-attached frame and the upper wall-attached frame are movably provided with support rods, the inner sides of the upper ends of the inlet wall-attached frame and the upper wall-attached frame are fixedly provided with matching buckles, the bottoms of the support rods are fixedly provided with snap rings sleeved on the matching buckles, the support rods are sleeved on the matching buckles through the snap rings, and the inner sides of the upper ends of the inlet protective frame and the upper wall-attached frame are fixedly provided with hooks buckled on the matching buckles.

5. The single-climbing type aluminum alloy folding outdoor escape ladder as claimed in claim 4, wherein a gravity rod is penetrated through the end part of the inlet wall-attached frame close to one end of the handrail of the upper frame, a pull rod with a free end sleeved on the gravity rod is hinged on the inner side of the upper end of the inlet wall-attached frame, a first spring is fixedly installed at one end of the support rod close to the gravity rod, a connecting rod is arranged between the first spring and the pull rod, one end of the connecting rod is connected with the first spring, a wedge block is fixedly installed at the other end of the connecting rod, a clamping groove matched with the wedge block is formed in the pull rod, and a second spring is installed between the wedge block and the pull rod.

6. The single-climbing aluminum alloy folding outdoor escape ladder as claimed in claim 1, wherein the end parts of the inlet wall-attached frame, the upper ladder wall-attached frame and the lower ladder wall-attached frame are fixedly provided with L-shaped fixing blocks with threaded holes.

7. The single-climbing aluminum alloy folding type outdoor escape ladder as claimed in claim 1, wherein a folding support is installed between the wall-attached upper ladder frame and the top of the protective upper ladder frame, and the folding support is a telescopic rod.

8. The single-climbing aluminum alloy folding type outdoor escape ladder as claimed in claim 1, wherein the upper frame handrail and the lower frame handrail are both provided with anti-slip ribs or anti-slip lines.

9. The single-climbing aluminum alloy folding outdoor escape ladder as claimed in claim 1, wherein the entrance slow-stepping pedal and the ladder slow-stepping pedal are provided with anti-slip ribs or anti-slip lines.

10. The single climbing aluminum alloy folding outdoor escape ladder as claimed in claim 5, wherein the upper end of the gravity rod is integrally provided with a stopper for preventing the gravity rod from slipping.

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