CN114016893A - Escape ladder opening system - Google Patents
Escape ladder opening system Download PDFInfo
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- CN114016893A CN114016893A CN202111299707.3A CN202111299707A CN114016893A CN 114016893 A CN114016893 A CN 114016893A CN 202111299707 A CN202111299707 A CN 202111299707A CN 114016893 A CN114016893 A CN 114016893A
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 35
- 238000009527 percussion Methods 0.000 claims description 14
- 230000001960 triggered effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 230000003116 impacting effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 8
- 230000009193 crawling Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/003—Indicating devices, e.g. user warnings or inclinators
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/181—Additional gripping devices, e.g. handrails
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to an escape ladder opening system, which belongs to the technical field of escape facilities and comprises a movable rod arranged in parallel to a fixed frame beam, wherein a folding fastening piece matched with a locking limiting piece positioned on a movable frame is arranged on the movable rod to realize the folding state locking of the movable frame; the opening mechanism can only push the movable rod to move along the length direction of the movable rod in the process of rotating and opening. The movement of the movable rod in the invention can not drive the opening pull rod to rotate, thus solving the problem that the escape ladder on the passive opening layer can not be opened because the rotation of the opening pull rod is limited when the escape ladder is opened in a linkage manner, and improving the reliability of the opening system of the escape ladder.
Description
Technical Field
The invention belongs to the technical field of escape facilities, and relates to an escape ladder opening system.
Background
Most of the existing escape ladders are folded at the lower part of the outer wall of each floor of the building. After the conflagration takes place, arouse the switch through artificial extraction emergency ladder, through the effect natural droop of gravity and open the emergency ladder of lower floor to link up with the emergency ladder of lower floor, realize carrying from the personnel of high-rise to low floor.
However, the existing escape ladder opening system has the following defects:
(1) the existing opening mechanism adopts the opening pull rod to be directly hinged with the movable rod provided with the folded state locking piece, when the escape ladder is opened in a linkage manner, the movable rod moves to drive the opening pull rod to rotate, and the problem that the escape ladder on a passive opening layer cannot be opened due to the fact that a barrier exists in the rotating space of the opening pull rod is solved.
(2) The existing anti-rebounding mechanism for the rotary handrail has poor reliability and cannot effectively prevent rebounding through the structure of the anti-rebounding mechanism.
(3) The existing anti-rebounding mechanism for the rotary handrail is complex in structure, not easy to manufacture and high in processing cost.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an emergency ladder opening system, so as to improve the reliability of the emergency ladder opening system.
In order to achieve the purpose, the invention provides the following technical scheme:
an escape ladder opening system comprises a movable rod arranged in parallel to a fixed frame beam, wherein a folding fastening piece matched with a locking limiting piece positioned on a movable frame is arranged on the movable rod to realize the folding state locking of the movable frame, one end of the movable rod extends out of the fixed frame, a striking plate is arranged at the end part of the movable rod, and an opening mechanism enabling a horizontal connecting rod to move towards one end of the striking plate is arranged at one end of the movable rod close to the striking plate to enable the folding fastening piece to be separated from the locking limiting piece; the opening mechanism comprises an opening pull rod, the opening pull rod comprises a straight handle part arranged in parallel with the movable rod, and a connecting part and a holding part which are respectively positioned at two ends of the straight handle part; the connecting part is obliquely arranged relative to the straight handle part; the connecting part is hinged with the fixed frame through the connecting end of the straight handle part, the other end of the connecting part acts on a stop pin arranged on the movable rod, and the stop pin is positioned on one side of the connecting part close to the impact plate, so that the opening mechanism can push the movable rod to move along the length direction of the movable rod only in the process of rotating and opening.
Optionally, the emergency escape ladder further comprises an anti-rebound mechanism capable of preventing the rotating handrail from rebounding, wherein the anti-rebound mechanism comprises a movable blocking piece which is positioned on the rotating handrail of the upper escape ladder and is adjacent to the impact end of the pendulum impact device; one end of the movable blocking piece is provided with a strip-shaped limiting hole, the movable blocking piece is movably connected with the rotary handrail through a connecting piece arranged in the limiting hole, and one end of the other end of the movable blocking piece, which is close to the pendulum bob percussion device, is provided with an inclined plane; the lower escape ladder is provided with a fixed blocking piece corresponding to the position of the movable blocking piece, the fixed blocking piece is positioned on one side of the movable blocking piece, which is far away from the inclined plane, and the height of the fixed blocking piece can enable the inclined plane of the movable blocking piece which moves upwards after impacting the fixed blocking piece to slide across the fixed blocking piece so as to enable the movable blocking piece to reset under the action of self weight.
Optionally, still including preventing the mechanism of preventing kick-backing that rotatory handrail kick-backed, prevent that the mechanism of kick-backing corresponds the check plate of upper escape ladder pendulum percussion device position including setting up at lower floor's escape ladder, the check plate is including being less than pendulum percussion device's overlap joint arm and rather than meeting and the striking arm that the other end is higher than pendulum percussion device, the overlap joint arm is articulated with the escape ladder crossbeam and the other end is equipped with the hem with the overlap joint on the escape ladder crossbeam with the end that meets of striking arm, the striking arm is rotatory certain angle so that pendulum percussion device passes through after being collided by pendulum percussion device, and reset under the canceling release mechanical system effect of being connected with the check plate.
Optionally, still include the mechanism of preventing rebounding that can prevent rotatory handrail from rebounding, prevent rebounding the mechanism and include the gag wheel that is equipped with the spacing groove on it and the gag lever post of lower extreme and spacing groove matching, the gag wheel corresponds the rotation center setting of rotatory handrail and rotates along with rotatory handrail, and the gag lever post opening up when rotatory handrail is in the expansion state to make be located its top and sliding connection under the action of gravity the gag lever post on the emergency ladder stand lower extreme automatic insertion spacing groove.
Optionally, the stop lever comprises a vertical part in sliding connection with the main frame upright column and a handle part positioned at the upper end of the vertical part, and the handle part and the vertical part are arranged in an L shape.
Optionally, the limiting groove is in an isosceles trapezoid or an isosceles triangle, and the width of the notch of the limiting groove is greater than the width of the groove bottom.
Optionally, the opening pull rod is connected with an alarm device, the rotation of the opening pull rod can trigger the alarm device, and the alarm device is connected with the mobile phone of the owner of the resident through the cloud server so as to send alarm information to the mobile phone of the owner of the resident when the alarm device is triggered.
Optionally, the opening pull rod is connected with a travel switch, the travel switch is connected with an alarm device, and when the opening pull rod rotates, the travel switch is triggered, and the alarm device gives an alarm.
Optionally, the travel switch is a pressure travel switch, a cam rotating along with the opening pull rod is arranged above the opening pull rod, and the cam and the travel switch act to trigger the travel switch when the opening pull rod rotates.
The invention has the beneficial effects that:
1. the movement of the movable rod in the invention can not drive the opening pull rod to rotate, thus solving the problem that the escape ladder on the passive opening layer can not be opened because the rotation of the opening pull rod is limited when the escape ladder is opened in a linkage manner, and improving the reliability of the opening system of the escape ladder.
2. The rebounding prevention mechanism can effectively prevent rebounding of the rotary handrail, and is simple in structure and easy to process and manufacture.
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 view of the opening mechanism;
fig. 2 is a schematic view illustrating an unfolded state of the escape ladder;
FIG. 3 is a schematic view of the ladder in a folded state;
FIG. 4 is a schematic structural view of the antirebound mechanism in embodiment 1;
FIG. 5 is a first schematic structural view of the antirebound mechanism according to embodiment 2;
FIG. 6 is a second schematic structural view of the antirebound mechanism of embodiment 2;
FIG. 7 is a third schematic structural view of the antirebound mechanism according to embodiment 2;
FIG. 8 is a schematic structural view of a spacing wheel;
FIG. 9 is a schematic structural view of a stop lever;
fig. 10 is a schematic structural view of the antirebound mechanism according to embodiment 3.
Reference numerals: the device comprises a cam 1, a movable rod limiting part 2, a stop pin 3, a movable rod 4, a folding fastener 5, an opening pull rod 6, a spreading mechanism 7, a fixed frame 8, a rotary handrail 9, a rotary ladder stand 10, a striking plate 11, an opening mechanism mounting box 12, a movable frame 13, a locking limiting part 14, a handrail folding baffle plate 15, a ladder stand folding baffle plate 16, a check plate 19, a limiting wheel 21, a limiting rod 22, a limiting wheel rotating shaft 23, a limiting pin 24, a main frame bushing 25, a rotary handrail bushing 28, a limiting rod limiting shaft 30, a movable blocking part 31 and a fixed blocking part 32.
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.
Referring to fig. 1 to 10, an escape ladder opening system includes a movable rod 4 disposed parallel to a cross beam of a fixed frame 8, the movable rod 4 is provided with a folding fastening member 5 matched with a locking limit member 14 disposed on a movable frame 13 to lock the movable frame 13 in a folded state, one end of the movable rod 4 extends out of the fixed frame 8 and is provided with a striking plate 11, one end of the movable rod 4 near the striking plate 11 is provided with an opening mechanism for moving a horizontal link rod to one end of the striking plate 11 to separate the folding fastening member 5 from the locking limit member 14; the opening mechanism comprises an opening pull rod 6, the opening pull rod 6 comprises a straight handle part arranged parallel to the movable rod 4 and a connecting part and a holding part which are respectively positioned at two ends of the straight handle part; the connecting part is obliquely arranged relative to the straight handle part; the connecting end of the connecting part and the straight handle part is hinged with the fixed frame 8, the other end of the connecting part and the stop pin 3 arranged on the movable rod 4 act, and the stop pin 3 is positioned on one side of the connecting part close to the impact plate 11, so that the opening mechanism can push the movable rod 4 to move along the length direction of the movable rod only in the process of rotating and opening.
Optionally, the emergency escape ladder further comprises an anti-rebound mechanism which can prevent the rotary handrail 9 from rebounding, wherein the anti-rebound mechanism comprises a movable blocking piece 31 which is positioned on the rotary handrail 9 of the upper escape ladder and is adjacent to the impact end of the pendulum impact device; one end of the movable blocking piece 31 is provided with a strip-shaped limiting hole, the movable blocking piece 31 is movably connected with the rotary handrail 9 through a connecting piece arranged in the limiting hole, and one end of the other end of the movable blocking piece 31 close to the pendulum bob percussion device is provided with an inclined surface; the lower escape ladder is provided with a fixed stopper 32 at a position corresponding to the movable stopper 31, the fixed stopper 32 being located at a side of the movable stopper 31 remote from the inclined surface, and having a height such that the inclined surface of the movable stopper 31 moving upward after hitting the fixed stopper 32 slides over the fixed stopper 32 to restore the movable stopper 31 under the self-weight.
The rebound prevention mechanism can also be of the following structure: including setting up at the check plate 19 that lower floor's emergency ladder corresponds upper escape ladder pendulum collision device position, check plate 19 is including the overlap joint arm that is less than pendulum collision device and rather than meeting and the other end is higher than pendulum collision device's striking arm, overlap joint arm and the end of connecing mutually of striking arm are equipped with the hem with the articulated and other end of emergency ladder crossbeam with the overlap joint on the emergency ladder crossbeam, the striking arm is rotatory certain angle so that pendulum collision device passes through after being collided by pendulum collision device, and reset under the canceling release mechanical system effect of being connected with check plate 19. The resetting mechanism is preferably of an elastic telescopic structure.
The rebound prevention mechanism can also have the following structure: the rebound prevention mechanism comprises a limiting wheel 21 provided with a limiting groove and a limiting rod 22 of which the lower end is matched with the limiting groove, the limiting wheel 21 is arranged corresponding to the rotating center of the rotating handrail 9 and rotates along with the rotating handrail 9, and the opening of the limiting groove faces upwards when the rotating handrail 9 is in an unfolding state, so that the lower end of the limiting rod 22 which is positioned right above the rotating handrail and is connected to the escape ladder stand column in a sliding mode is automatically inserted into the limiting groove under the action of gravity.
Optionally, the stop bar 22 includes a vertical portion slidably connected to the main frame upright and a handle portion at an upper end of the vertical portion, the handle portion and the vertical portion being arranged in an L-shape.
Optionally, the limiting groove is in an isosceles trapezoid or an isosceles triangle, and the width of the notch of the limiting groove is greater than the width of the groove bottom.
Optionally, the opening pull rod 6 is connected with an alarm device, the rotation of the opening pull rod 6 can trigger the alarm device, and the alarm device is connected with the mobile phone of the owner of the resident through the cloud server so as to send alarm information to the mobile phone of the owner of the resident when the alarm device is triggered.
Optionally, the opening pull rod 6 is connected with a travel switch, the travel switch is connected with an alarm device, and when the opening pull rod 6 rotates, the travel switch is triggered and the alarm device gives an alarm.
Optionally, the travel switch is a pressure travel switch, a cam 1 rotating with the opening pull rod 6 is arranged above the opening pull rod 6, and the cam 1 and the travel switch act to trigger the travel switch when the opening pull rod 6 rotates.
The invention is suitable for being made of aluminum alloy materials, and the aluminum alloy materials have the advantages of excellent corrosion resistance, light weight, good recoverability, various surface treatment modes, attractive appearance and the like.
Example 1
An escape ladder opening system is mainly composed of a cam 1, a movable rod limiting part 2, a stop pin 3, a movable rod 4, a folding fastener 5, an opening pull rod 6, a spreading mechanism 7, a striking plate 11, an opening device mounting box 12, a locking limiting part 14, a handrail folding baffle 15, a ladder folding baffle 16 and an anti-rebound mechanism as shown in figures 1-4. The concrete structure, relative position relation and connection mode of each part are as follows:
the movable rod 4 is connected with the fixed frame 8 in a sliding mode through the movable rod limiting part 2, the impact plate 11 is welded at one end of the movable rod 4, and the opening pull rod 6 is connected with the fixed frame 8 in a rotating mode through a rotating shaft fixed on the opening pull rod. The upper end of the rotating shaft is fixedly connected with a cam 1, and the cam 1 acts with a roller of the travel switch when rotating to a certain angle along with the opening pull rod 6, so that an alarm device connected with the travel switch is triggered. The stop pin 3 is arranged on the movable rod 4 and plays a role in limiting the rotary displacement of the tail part of the opening pull rod. Folding fastener 5 includes the connecting block and fixes the round pin axle on the connecting block, and the round pin axle is parallel with movable rod 4, connecting block and 4 welded connection of movable rod. The locking limiting part 14 is welded with the movable frame 13, is provided with a jack matched with the pin shaft, is matched with the folding fastening piece 5, and plays a role in limiting the expansion of the movable frame 13 during folding. The opening mechanism 7 is connected with the fixed frame 8 and the movable frame 13, and the opening mechanism 7 can enable the movable frame 13 to be automatically opened after the folding fastener 5 is separated from the locking limiting piece 14. The rotary handrail 9 and the rotary crawling ladder 10 are rotatably connected with the fixed frame 8 and the movable frame 13, handrail folding baffles 15 and crawling ladder folding baffles 16 are respectively arranged on the rotary handrail 9 and the rotary crawling ladder 10, and when the folding is carried out, the rotary handrail 9 and the rotary crawling ladder 10 are respectively limited to fall off by being put on a lower cross beam of the movable frame 13. The rebound prevention mechanism comprises a check plate 19 arranged on the inner side of an upper beam of the fixed frame, one end of the rebound prevention mechanism is lower than the pendulum mass impact device and is provided with a folded edge to be lapped on the escape ladder beam, the other end of the rebound prevention mechanism is close to the pendulum mass impact device and is higher than the pendulum mass impact device, and one end close to the pendulum mass impact device is rotatably connected with the upper beam through a rotating shaft; the return plate 19 is connected to a return mechanism for returning the plate. The opening device mounting box 12 is connected to the fixed frame 8 by a connecting member through a tapping screw, and plays a role in protecting the opening pull rod 6.
This mechanism of preventing kick-backing can prevent effectively that rotatory handrail 9 from taking place to kick-back when using, and when the conflagration takes place, makes things convenient for the evacuee to flee smoothly and uses. The anti-rebound mechanism is simple in structure, easy to process and produce, capable of effectively reducing the processing cost, improving the production efficiency and reducing a large amount of manpower and material resources.
Example 2
An escape ladder opening system is different from embodiment 1 in that an antirebound mechanism is different. As shown in fig. 5 to 9, the rebound prevention mechanism mainly comprises a limit wheel 21, a limit rod 22, a limit wheel rotating shaft 23, a limit pin 24, a main frame bushing 25, a rotary handrail bushing 28, and a limit rod limiting shaft 30. The concrete structure, relative position relation and connection mode of each part are as follows:
round holes are formed in the fixed frame 8 and the rotary handrail 9 corresponding to the position of the limiting rotating shaft 23, a main frame bushing 25 and a rotary handrail bushing 28 are respectively arranged in the round hole of the fixed frame 8 and the round hole of the rotary handrail 9, and the bushings play roles in sealing the rotating shaft, reducing the abrasion of the rotating shaft and the like during working. The limiting wheel rotating shaft 23 passes through the rotary handrail bush 28 and the main frame bush 25, and is connected with the rotary handrail 9 and the fixed frame 8. The limiting wheel 21 is mounted on the limiting wheel rotating shaft 23, clings to the main frame bushing 25 and is positioned on the outer side of the rotary handrail 9. The limiting pin 24 is inserted into a reserved small hole below the limiting wheel 21, plays a role in limiting the limiting wheel 21 during rotation, and is locked by a hexagonal nut and conical elastic washer assembly. Two limiting holes which are in a strip shape are formed in the limiting rod 22, limiting rod limiting shafts 30 are arranged in the limiting holes, the other ends of the limiting rod limiting shafts 30 are inserted into two round holes reserved in the fixed frame stand columns, and the other ends of the two limiting rod limiting shafts 30 are fixed through hexagon nuts and conical elastic washer assemblies respectively. When folding when rotatory handrail 9 during the use, gag lever post 22 and spacing wheel 21's cambered surface contact, no limit function, rotatory handrail 9 can be around the rotation point free rotation, after the emergency ladder expandes, rotatory handrail 9 rotatory whereabouts, spacing wheel 21 rotates in the lump, when spacing groove as spacing wheel 21 rotates directly over the orientation, gag lever post 22 inserts its spacing inslot, realize effective spacing to spacing wheel 21, prevent that it from kick-backing, make things convenient for the personnel of fleing to scramble and use.
Example 3
An escape ladder opening system is different from embodiment 1 in that an antirebound mechanism is different. The antirebound mechanism, as shown in fig. 10, is mainly composed of a movable stopper 31 and a fixed stopper 32. The concrete structure, relative position relation and connection mode of each part are as follows:
one end of the movable blocking piece 31 is provided with a strip-shaped limiting hole, the movable blocking piece 31 is movably connected with the rotary handrail 9 through a connecting piece arranged in the limiting hole, and one end of the other end of the movable blocking piece 31 close to the pendulum bob percussion device is provided with an inclined surface; the lower escape ladder is provided with a fixed stopper 32 at a position corresponding to the movable stopper 31, the fixed stopper 32 being located at a side of the movable stopper 31 remote from the inclined surface, and having a height such that the inclined surface of the movable stopper 31 moving upward after hitting the fixed stopper 32 slides over the fixed stopper 32 to restore the movable stopper 31 under the self-weight.
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 (9)
1. An escape ladder opening system, characterized in that: the folding type locking device comprises a movable rod arranged parallel to a fixed frame beam, wherein a folding fastening piece matched with a locking limiting piece positioned on a movable frame is arranged on the movable rod so as to realize the locking of the folding state of the movable frame, one end of the movable rod extends out of the fixed frame, a striking plate is arranged at the end part of the movable rod, and an opening mechanism which enables a horizontal connecting rod to move towards one end of the striking plate is arranged at one end of the movable rod close to the striking plate so as to enable the folding fastening piece to be separated from the locking limiting piece; the opening mechanism comprises an opening pull rod, the opening pull rod comprises a straight handle part arranged in parallel with the movable rod, and a connecting part and a holding part which are respectively positioned at two ends of the straight handle part; the connecting part is obliquely arranged relative to the straight handle part; the connecting part is hinged with the fixed frame through the connecting end of the straight handle part, the other end of the connecting part acts on a stop pin arranged on the movable rod, and the stop pin is positioned on one side of the connecting part close to the impact plate, so that the opening mechanism can push the movable rod to move along the length direction of the movable rod only in the process of rotating and opening.
2. The system of claim 1, wherein: the anti-rebounding mechanism comprises a movable blocking piece which is positioned on the rotary handrail of the escape ladder at the upper layer and is arranged close to the impact end of the pendulum mass impacting device; one end of the movable blocking piece is provided with a strip-shaped limiting hole, the movable blocking piece is movably connected with the rotary handrail through a connecting piece arranged in the limiting hole, and one end of the other end of the movable blocking piece, which is close to the pendulum bob percussion device, is provided with an inclined plane; the lower escape ladder is provided with a fixed blocking piece corresponding to the position of the movable blocking piece, the fixed blocking piece is positioned on one side of the movable blocking piece, which is far away from the inclined plane, and the height of the fixed blocking piece can enable the inclined plane of the movable blocking piece which moves upwards after impacting the fixed blocking piece to slide across the fixed blocking piece so as to enable the movable blocking piece to reset under the action of self weight.
3. The system of claim 1, wherein: still including preventing the mechanism of preventing kick-backing that rotatory handrail kick-backed, prevent that the mechanism of rebounding corresponds the check board of upper escape ladder pendulum percussion device position including setting up at lower floor's escape ladder, the check board is including the overlap joint arm that is less than pendulum percussion device and rather than meeting and the striking arm that the other end is higher than pendulum percussion device, the overlap joint arm is held with the articulated and other end of escape ladder crossbeam and is equipped with the hem with the overlap joint on the escape ladder crossbeam, rotatory certain angle is so that pendulum percussion device passes through after the striking arm is collided by pendulum percussion device, and reset under the canceling release mechanical system effect of being connected with the check board.
4. The system of claim 1, wherein: still including preventing the mechanism of resilience that prevents that rotatory handrail from kick-backing, prevent that the mechanism of resilience includes that it is equipped with spacing wheel and the gag lever post that the lower extreme matches with the spacing groove of spacing groove, spacing wheel corresponds the center of rotation setting of rotatory handrail and rotates along with rotatory handrail, and the gag lever post opening up when rotatory handrail is in the expansion state to make be located its directly over and sliding connection the gag lever post on the emergency ladder stand under the action of gravity lower extreme automatic insertion spacing groove.
5. The escape ladder opening system of claim 4, wherein: the gag lever post includes the vertical portion with main frame stand sliding connection and the stalk portion that is located vertical portion upper end, and the stalk portion is the L type with vertical portion and arranges.
6. The escape ladder opening system of claim 4, wherein: the limiting groove is in an isosceles trapezoid shape or an isosceles triangle shape, and the width of the notch of the limiting groove is larger than the width of the groove bottom.
7. The system of claim 1, wherein: the opening pull rod is connected with an alarm device, the alarm device can be triggered by rotation of the opening pull rod, and the alarm device is connected with the owner mobile phone of the resident through the cloud server so as to send alarm information to the owner mobile phone of the resident when the alarm device is triggered.
8. The system of claim 1, wherein: the opening pull rod is connected with a travel switch, the travel switch is connected with an alarm device, and when the opening pull rod rotates, the travel switch is triggered, and the alarm device gives an alarm.
9. The system of claim 8, wherein: the travel switch is a pressure travel switch, a cam rotating along with the pressure travel switch is arranged above the opening pull rod, and the cam and the travel switch act to trigger the travel switch when the opening pull rod rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299707.3A CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299707.3A CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
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| CN114016893A true CN114016893A (en) | 2022-02-08 |
| CN114016893B CN114016893B (en) | 2024-03-12 |
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| CN202111299707.3A Active CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718441A (en) * | 2022-03-16 | 2022-07-08 | 四川华远建设工程有限公司 | Super high-rise building core section of thick bamboo construction safety fire protection system device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197456A (en) * | 2002-12-19 | 2004-07-15 | Nippon Kinzoku Co Ltd | Emergency ladder apparatus |
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| CN111794671A (en) * | 2020-08-11 | 2020-10-20 | 辽宁忠旺集团有限公司 | Outdoor emergency ladder of formula aluminum alloy folded form is climbed to list |
| CN213297812U (en) * | 2020-08-11 | 2021-05-28 | 辽宁忠旺集团有限公司 | Opening mechanism for aluminum alloy folding outdoor escape ladder |
| CN113006828A (en) * | 2021-02-26 | 2021-06-22 | 上海交通大学 | Arch frame connecting structure with self-locking function and installation method |
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2021
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| JP2004197456A (en) * | 2002-12-19 | 2004-07-15 | Nippon Kinzoku Co Ltd | Emergency ladder apparatus |
| CN107165351A (en) * | 2017-06-23 | 2017-09-15 | 江苏凡润电子有限公司 | Collapsible act of rescue device required for skyscraper |
| CN108194018A (en) * | 2018-02-26 | 2018-06-22 | 孙志仁 | A kind of multi-functional dual-purpose Emergency Ladder |
| CN111794671A (en) * | 2020-08-11 | 2020-10-20 | 辽宁忠旺集团有限公司 | Outdoor emergency ladder of formula aluminum alloy folded form is climbed to list |
| CN213297812U (en) * | 2020-08-11 | 2021-05-28 | 辽宁忠旺集团有限公司 | Opening mechanism for aluminum alloy folding outdoor escape ladder |
| CN113006828A (en) * | 2021-02-26 | 2021-06-22 | 上海交通大学 | Arch frame connecting structure with self-locking function and installation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114718441A (en) * | 2022-03-16 | 2022-07-08 | 四川华远建设工程有限公司 | Super high-rise building core section of thick bamboo construction safety fire protection system device |
| CN114718441B (en) * | 2022-03-16 | 2024-04-02 | 四川华远建设工程有限公司 | Super high-rise building core section of thick bamboo construction safety fire protection system device |
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| CN114016893B (en) | 2024-03-12 |
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