CN114016893B - Escape ladder opening system - Google Patents
Escape ladder opening system Download PDFInfo
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- CN114016893B CN114016893B CN202111299707.3A CN202111299707A CN114016893B CN 114016893 B CN114016893 B CN 114016893B CN 202111299707 A CN202111299707 A CN 202111299707A CN 114016893 B CN114016893 B CN 114016893B
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- rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 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 48
- 230000002265 prevention Effects 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000009527 percussion Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims description 2
- 241000282326 Felis catus Species 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 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
- 230000009193 crawling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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, wherein the movable rod is parallel to a fixed frame cross beam, a folding fastening piece matched with a locking limiting piece on a movable frame is arranged on the movable rod so as to realize the folding state locking of the movable frame, one end of the movable rod extends out of the fixed frame, the end part of the movable rod is provided with an impact plate, and one end of the movable rod, which is close to the impact plate, is provided with an opening mechanism for enabling the movable rod to move towards one end of the impact plate so as to enable the folding fastening piece to be separated from the locking limiting piece; the opening mechanism can push the movable rod to move along the length direction only 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, so that the problem that the escape ladder of the passive opening layer can not be opened due to the limited rotation of the opening pull rod when the escape ladder is opened in a linkage manner is solved, and the reliability of an escape ladder opening system is improved.
Description
Technical Field
The invention belongs to the technical field of escape facilities, and relates to an escape ladder opening system.
Background
The existing escape ladder is mostly folded at the lower part of the outer wall of each floor. After a fire disaster occurs, the escape ladder is opened by manually pulling out the escape ladder triggering switch and naturally drooping under the action of gravity, and is connected with the escape ladder of the lower floor, so that the personnel transportation from the high floor to the low floor is realized.
However, the existing escape ladder opening system has the following defects:
(1) The existing opening mechanism adopts an opening pull rod to be directly hinged with a movable rod provided with a folding state locking piece, when the escape ladder is opened in a linkage mode, the movable rod can drive the opening pull rod to rotate, and the escape ladder on a passive opening layer is prevented from being opened due to the fact that a rotating space of the opening pull rod is provided with an obstacle.
(2) The existing rotary armrest rebound prevention mechanism has poor reliability and cannot effectively prevent the rebound phenomenon from happening through the structure.
(3) The existing rotary armrest rebound prevention mechanism is complex in structure, difficult to manufacture and high in processing cost.
Disclosure of Invention
Accordingly, the present invention is directed to an opening system for an escape ladder to improve the reliability of the opening system for an escape ladder.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the escape ladder opening system comprises a movable rod which is parallel to a fixed frame cross beam, wherein a folding fastening piece matched with a locking limiting piece positioned on the movable frame is arranged on the movable rod so as to realize the folding state locking of the movable frame, one end of the movable rod extends out of the fixed frame, the end part of the movable rod is provided with an impact plate, and one end of the movable rod, which is close to the impact plate, is provided with an opening mechanism for enabling the movable rod to move towards one end of the impact 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, and the opening pull rod comprises a straight handle part arranged parallel to 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 at the connecting end of the straight handle part, the other end of the connecting part acts with a stop pin arranged on the movable rod, and the stop pin is positioned at 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 rotary opening process.
Optionally, the device further comprises an anti-rebound mechanism capable of preventing the rebound of the rotary handrail, wherein the anti-rebound mechanism comprises a movable blocking piece which is positioned on the rotary handrail of the upper-layer 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 bar-shaped limiting hole, the movable blocking piece is movably connected with the rotary handrail through a connecting piece arranged in the limiting hole, and the other end of the movable blocking piece, which is close to one end of the pendulum bob striking device, is provided with an inclined surface; the lower-layer escape ladder is provided with a fixed blocking piece at the position corresponding to the movable blocking piece, the fixed blocking piece is positioned at one side of the movable blocking piece far away from the inclined plane, and the inclined plane of the movable blocking piece which moves upwards after impacting the fixed blocking piece can slide over the fixed blocking piece so as to reset the movable blocking piece under the action of dead weight.
Optionally, the device further comprises an anti-rebound mechanism capable of preventing the rotary handrail from rebounding, the anti-rebound mechanism comprises a check plate arranged at the position of the pendulum impact device of the upper-layer escape ladder corresponding to the lower-layer escape ladder, the check plate comprises a lap joint arm lower than the pendulum impact device and an impact arm connected with the lap joint arm and higher than the pendulum impact device at the other end, the joint end of the lap joint arm and the impact arm is hinged with the escape ladder beam, the other end of the lap joint arm is provided with a folded edge to be lapped on the escape ladder beam, the impact arm is rotated by a certain angle after being impacted by the pendulum impact device so that the pendulum impact device passes through, and the return mechanism connected with the check plate resets.
Optionally, the device further comprises an anti-rebound mechanism capable of preventing the rotary handrail from rebounding, the anti-rebound mechanism comprises a limiting wheel provided with a limiting groove on the limiting mechanism and a limiting rod with the lower end matched with the limiting groove, the limiting wheel corresponds to the rotation center of the rotary handrail and rotates along with the rotary handrail, and when the rotary handrail is in a unfolding state, the opening of the limiting groove faces upwards, so that the limiting rod which is positioned right above the rotary handrail and is in sliding connection with the stand column of the escape ladder is automatically inserted into the limiting groove under the action of gravity.
Optionally, the gag lever post includes vertical portion and the stalk portion that is located vertical portion upper end of main frame stand sliding connection, stalk portion and vertical portion are L type and arrange.
Optionally, the limit groove is isosceles trapezoid or isosceles triangle, and the width of the notch of the limit groove is larger 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 a resident owner mobile phone through a cloud server so as to send alarm information to the resident owner mobile phone 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 the travel switch is triggered when the opening pull rod rotates, and the alarm device alarms.
Optionally, the travel switch is a pressure travel switch, a cam rotating with the pull rod is arranged above the opening pull rod, and the cam acts with the travel switch 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, so that the problem that the escape ladder of the passive opening layer can not be opened due to the limited rotation of the opening pull rod when the escape ladder is opened in a linkage manner is solved, and the reliability of an escape ladder opening system is improved.
2. The rebound prevention mechanism can effectively prevent the rebound of the rotary handrail, has a simple structure and is 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 objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an opening mechanism;
FIG. 2 is a schematic view of an escape ladder in an extended state;
FIG. 3 is a schematic view of the folding state of the escape ladder;
FIG. 4 is a schematic structural view of an anti-rebound mechanism in embodiment 1;
FIG. 5 is a schematic diagram of the anti-rebound mechanism in embodiment 2;
FIG. 6 is a second schematic structural view of the anti-rebound mechanism according to the embodiment 2;
FIG. 7 is a schematic diagram of a rebound prevention mechanism according to an embodiment 2;
FIG. 8 is a schematic diagram of a spacing wheel;
FIG. 9 is a schematic view of a stop lever;
fig. 10 is a schematic structural view of an anti-rebound mechanism in embodiment 3.
Reference numerals: cam 1, movable rod limiter 2, stop pin 3, movable rod 4, folding fastener 5, opening pull rod 6, opening mechanism 7, fixed frame 8, rotating handrail 9, rotating cat ladder 10, strike plate 11, opening mechanism mounting box 12, movable frame 13, locking limiter 14, handrail folding baffle 15, cat ladder folding baffle 16, check plate 19, limiting wheel 21, limiting rod 22, limiting wheel rotating shaft 23, limiting pin 24, main frame bushing 25, rotating handrail bushing 28, limiting rod limiting shaft 30, movable blocking piece 31, and fixed blocking piece 32.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated 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 numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 10, an escape ladder opening system includes a movable rod 4 parallel to a beam of a fixed frame 8, wherein a folding fastening piece 5 matched with a locking limiting piece 14 on a movable frame 13 is arranged on the movable rod 4 to realize folding locking of the movable frame 13, 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 close to the striking plate 11 is provided with an opening mechanism for enabling the movable rod 4 to move towards one end of the striking plate 11 so as to enable the folding fastening piece 5 to be separated from the locking limiting piece 14; the opening mechanism comprises an opening pull rod 6, and 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 part is hinged with the fixed frame 8 at the connecting end of the straight handle part, the other end of the connecting part acts with the stop pin 3 arranged on the movable rod 4, 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, an anti-rebound mechanism capable of preventing rebound of the rotary handrail 9, the anti-rebound mechanism comprising a movable barrier 31 located on the upper-level escape ladder rotary handrail 9 and disposed adjacent to the striking end of the pendulum striking device; one end of the movable blocking piece 31 is provided with a bar-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 the other end of the movable blocking piece 31, which is close to one end of the pendulum bob striking device, is provided with an inclined surface; the lower-layer escape ladder is provided with a fixed blocking piece 32 at a position corresponding to the movable blocking piece 31, the fixed blocking piece 32 is positioned at one side of the movable blocking piece 31 far away from the inclined surface, and the inclined surface of the movable blocking piece 31 which moves upwards after striking the fixed blocking piece 32 can slide over the fixed blocking piece 32 so as to reset the movable blocking piece 31 under the action of dead weight.
The rebound prevention mechanism can also have the following structure: including setting up the check board 19 that corresponds upper escape pendulum ram percussion device position at the lower floor's escape, the check board 19 include be less than pendulum ram percussion device's overlap joint arm and rather than meet and the other end is higher than pendulum ram's impact arm, overlap joint arm and the articulated end of impact arm and escape crossbeam and the other end are equipped with the hem in order to overlap joint on the escape crossbeam, the impact arm is rotated certain angle in order to make pendulum ram pass through by pendulum ram collision device after colliding to reset under the canceling release mechanical system effect of being connected with the check board 19. The resetting mechanism is preferably 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, wherein the lower end of the limiting rod is matched with the limiting groove, the limiting wheel 21 is arranged corresponding to the rotation center of the rotary armrest 9 and rotates along with the rotary armrest 9, and when the rotary armrest 9 is in a unfolding state, the opening of the limiting groove faces upwards, so that the limiting rod 22 which is positioned right above the limiting wheel and is in sliding connection with the stand column of the escape ladder is automatically inserted into the limiting groove under the action of gravity.
Optionally, the limiting rod 22 comprises a vertical part in sliding connection with the main frame upright post and a handle part positioned at the upper end of the vertical part, and the handle part and the vertical part are in L-shaped arrangement.
Optionally, the limit groove is isosceles trapezoid or isosceles triangle, and the notch width of the limit groove is larger than the groove bottom width.
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 resident owner mobile phone through the cloud server so as to send alarm information to the resident owner mobile phone 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 the travel switch is triggered when the opening pull rod 6 rotates, and the alarm device alarms.
Optionally, the travel switch is a pressure travel switch, a cam 1 rotating with the pull rod 6 is arranged above the pull rod 6, and the cam 1 acts with the travel switch to trigger the travel switch when the pull rod 6 is turned.
The invention is preferably 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 shown in fig. 1-4, and mainly comprises a cam 1, a movable rod limiting piece 2, a stop pin 3, a movable rod 4, a folding fastening piece 5, an opening pull rod 6, a spreading mechanism 7, an impact plate 11, an opening device mounting box 12, a locking limiting piece 14, an armrest folding baffle 15, a crawling ladder folding baffle 16 and an anti-rebound mechanism. The specific structure, relative position relation and connection mode of each part are as follows:
the movable rod 4 is in sliding connection with the fixed frame 8 through the movable rod limiting piece 2, the striking plate 11 is welded at one end of the movable rod 4, and the opening pull rod 6 is in rotary connection with the fixed frame 8 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 as to trigger an alarm device connected with the travel switch. The stop pin 3 is arranged on the movable rod 4 and plays a role in limiting the rotary displacement of the tail of the opening pull rod. The folding fastening piece 5 comprises a connecting block and a pin shaft fixed on the connecting block, the pin shaft is parallel to the movable rod 4, and the connecting block is welded with the movable rod 4. The locking limiting piece 14 is welded with the movable frame 13, and is provided with a jack matched with the pin shaft, and is matched with the folding fastening piece 5, so that the movable frame 13 is limited to be unfolded when being folded. 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 fastening piece 5 is separated from the locking limiting piece 14. The rotary handrail 9 and the rotary cat ladder 10 are rotationally connected with the fixed frame 8 and the movable frame 13, and the rotary handrail 9 and the rotary cat ladder 10 are respectively provided with a handrail folding baffle 15 and a cat ladder folding baffle 16, and when folding, the rotary handrail 9 and the rotary cat 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 the upper beam of the fixed frame, one end of the check plate is lower than the pendulum impact device and provided with a folded edge so as to be lapped on the escape ladder beam, the other end of the check plate is close to the pendulum impact device and higher than the pendulum impact device, and one end of the check plate close to the pendulum impact device is rotationally connected with the upper beam through a rotating shaft; the check plate 19 is connected to a reset mechanism for resetting the same. The opening device mounting box 12 is connected with the fixed frame 8 by a connecting piece through a self-tapping screw, and plays a role in protecting the opening pull rod 6.
The rebound prevention mechanism can effectively prevent the rotary armrest 9 from rebounding when in use, and is convenient for the evacuee to smoothly escape when a fire disaster occurs. The rebound prevention mechanism has a simple structure, is easy to process and produce, can effectively reduce the processing cost, improves the production efficiency, and reduces a large amount of manpower and material resources.
Example 2
An escape ladder opening system is different from embodiment 1 in that an anti-rebound 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 armrest bushing 28 and a limit rod limit shaft 30. The specific structure, relative position relation and connection mode of each part are as follows:
the fixed frame 8 and the rotary armrest 9 corresponding to the position of the limiting rotating shaft 23 are provided with round holes, and the round holes of the fixed frame 8 and the round holes of the rotary armrest 9 are respectively provided with a main frame bushing 25 and a rotary armrest bushing 28, which play roles in sealing the rotating shaft, reducing the abrasion of the rotating shaft and the like when the rotating shaft works. The limiting wheel rotating shaft 23 passes through the rotating handrail bushing 28 and the main frame bushing 25 and is connected with the rotating handrail 9 and the fixed frame 8. The limiting wheel 21 is arranged on the limiting wheel rotating shaft 23, is tightly attached to the main frame bushing 25 and is positioned on the outer side of the rotating handrail 9. The limiting pin 24 is inserted into a small hole reserved 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 bar-shaped limiting holes 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 upright post, and the other ends of the two limiting rod limiting shafts 30 are fixed through hexagonal nuts and conical elastic washer assemblies respectively. When the rotatory handrail 9 is folded during the use, gag lever post 22 and the cambered surface contact of spacing wheel 21, unlimited position function, rotatory handrail 9 can be around the rotation point free rotation, after the escape expansion, rotatory whereabouts of rotatory handrail 9, spacing wheel 21 is rotatory in the lump, when the spacing groove of spacing wheel 21 rotates to the orientation directly over, gag lever post 22 inserts its spacing inslot, realizes the effective spacing to spacing wheel 21, prevents its resilience, makes things convenient for the personnel of fleing to climb and uses.
Example 3
An escape ladder opening system is different from embodiment 1 in that an anti-rebound mechanism is different. The rebound prevention mechanism, as shown in fig. 10, is mainly composed of a movable stopper 31 and a fixed stopper 32. The specific 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 bar-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 the other end of the movable blocking piece 31, which is close to one end of the pendulum bob striking device, is provided with an inclined surface; the lower-layer escape ladder is provided with a fixed blocking piece 32 at a position corresponding to the movable blocking piece 31, the fixed blocking piece 32 is positioned at one side of the movable blocking piece 31 far away from the inclined surface, and the inclined surface of the movable blocking piece 31 which moves upwards after striking the fixed blocking piece 32 can slide over the fixed blocking piece 32 so as to reset the movable blocking piece 31 under the action of dead weight.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (8)
1. An escape ladder opening system, characterized in that: the movable rod is provided with a folding fastening piece matched with a locking limiting piece positioned on the movable frame 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, the end part of the movable rod is provided with a striking plate, and one end of the movable rod, which is close to the striking plate, is provided with an opening mechanism for enabling the movable rod to move towards one end of 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, and the opening pull rod comprises a straight handle part arranged parallel to 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 at the connecting end of the straight handle part, the other end of the connecting part acts with a stop pin arranged on the movable rod, and the stop pin is positioned at 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; the device also comprises an anti-rebound mechanism capable of preventing the rotary handrail from rebounding, wherein the anti-rebound mechanism comprises a movable blocking piece which is positioned on the rotary handrail of the upper-layer 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 bar-shaped limiting hole, the movable blocking piece is movably connected with the rotary handrail through a connecting piece arranged in the limiting hole, and the other end of the movable blocking piece, which is close to one end of the pendulum bob striking device, is provided with an inclined surface; the lower-layer escape ladder is provided with a fixed blocking piece at the position corresponding to the movable blocking piece, the fixed blocking piece is positioned at one side of the movable blocking piece far away from the inclined plane, and the inclined plane of the movable blocking piece which moves upwards after impacting the fixed blocking piece can slide over the fixed blocking piece so as to reset the movable blocking piece under the action of dead weight.
2. An escape ladder opening system according to claim 1, characterized in that: the rebound prevention mechanism has the following structure: including setting up the check board at the corresponding upper strata escape pendulum ram percussion device position of lower floor's escape, the check board includes the overlap joint arm that is less than pendulum ram and meets rather than the impact arm that just the other end is higher than pendulum ram, overlap joint arm and the phase end of impact arm are articulated with the escape crossbeam and the other end is equipped with the hem in order to overlap joint on the escape crossbeam, the impact arm is rotated certain angle in order to make pendulum ram pass through by pendulum ram collision device after colliding to reset under the canceling release mechanical system effect of being connected with the check board.
3. An escape ladder opening system according to claim 1, characterized in that: the rebound prevention mechanism has the following structure: the limiting wheels are arranged corresponding to the rotation center of the rotary handrail and rotate along with the rotary handrail, and when the rotary handrail is in a unfolding state, the opening of the limiting groove faces upwards, so that the limiting rod which is positioned right above the rotary handrail and is in sliding connection with the stand column of the escape ladder is automatically inserted into the limiting groove under the action of gravity.
4. A ramp opening system according to claim 3, characterized in that: the limiting rod comprises a vertical part in sliding connection with the main frame upright post 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.
5. A ramp opening system according to claim 3, characterized in that: the limit groove is isosceles trapezoid or isosceles triangle, and the notch width of the limit groove is larger than the groove bottom width.
6. An escape ladder opening system according to claim 1, characterized in that: 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 a resident owner mobile phone through a cloud server so as to send alarm information to the resident owner mobile phone when the alarm device is triggered.
7. An escape ladder opening system according to claim 1, characterized in that: the starting pull rod is connected with a travel switch, the travel switch is connected with an alarm device, and the travel switch is triggered when the starting pull rod rotates, and the alarm device alarms.
8. An escape ladder opening system according to claim 7, characterized in that: the travel switch is a pressure travel switch, a cam rotating along with the pull rod is arranged above the pull rod, and the cam acts with the travel switch to trigger the travel switch when the pull rod is started to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299707.3A CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299707.3A CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114016893A CN114016893A (en) | 2022-02-08 |
| CN114016893B true CN114016893B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111299707.3A Active CN114016893B (en) | 2021-11-04 | 2021-11-04 | Escape ladder opening system |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2021
- 2021-11-04 CN CN202111299707.3A patent/CN114016893B/en active Active
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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 |
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| CN114016893A (en) | 2022-02-08 |
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