CN114086879A - Vertical-climbing escape ladder upper-lower linkage opening mechanism - Google Patents
Vertical-climbing escape ladder upper-lower linkage opening mechanism Download PDFInfo
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- CN114086879A CN114086879A CN202111299727.0A CN202111299727A CN114086879A CN 114086879 A CN114086879 A CN 114086879A CN 202111299727 A CN202111299727 A CN 202111299727A CN 114086879 A CN114086879 A CN 114086879A
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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
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
- E06C9/10—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members forming part of a building, such as a balcony grid, window grid, or other window part
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to an up-and-down linkage opening mechanism of a straight-climbing escape ladder, belonging to the technical field of escape facilities, comprising linkage rods arranged along the height direction of a floor, wherein each linkage rod comprises a first linkage rod and a second linkage rod, the upper end and the lower end of each first linkage rod respectively correspond to a limiting mechanism of an n + 2-layer escape ladder and a limiting mechanism of an n-layer escape ladder, the upper end and the lower end of each second linkage rod respectively correspond to a limiting mechanism of an n + 1-layer escape ladder and a limiting mechanism of an n + 3-layer escape ladder, wherein n is a natural number not less than 1, and the first linkage rod and the second linkage rod are fixed on the movable frame side corresponding to the escape ladders; the limiting mechanism comprises a movable rod arranged parallel to the fixed frame beam, an opening handle capable of enabling the movable rod to move towards one end, and a rotating arm rotating along with the movement of the movable rod; the rotating arm is provided with a clamping groove matched with the linkage rod, and the moving of the movable rod can drive the rotating arm to rotate until the notch of the clamping groove faces the unfolding direction of the escape ladder, so that the movable frame is unfolded under the action of the unfolding mechanism.
Description
Technical Field
The invention belongs to the technical field of escape facilities, and relates to an up-and-down linkage opening mechanism of a straight-climbing escape ladder.
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 mechanism has the following defects: 1. the existing escape ladder naturally droops and is opened under the action of gravity, and the escape ladder structure is easily damaged by a large impact force due to the opening mode, so that the service life of the device is short; 2. the opening mechanism can not open all floors of the escape ladder at the same time, so that the escape efficiency is lower when a fire comes.
Disclosure of Invention
In view of the above, the present invention provides a vertical-climbing type escape ladder vertical-linking opening mechanism, so as to open all floors of an escape ladder at any floor.
In order to achieve the purpose, the invention provides the following technical scheme:
a vertical-climbing type escape ladder vertical linkage opening mechanism comprises linkage rods arranged along the height direction of a floor, wherein each linkage rod comprises a first linkage rod and a second linkage rod, the upper end and the lower end of each first linkage rod respectively correspond to a limiting mechanism of an n + 2-layer escape ladder and a limiting mechanism of an n-layer escape ladder, the upper end and the lower end of each second linkage rod respectively correspond to a limiting mechanism of an n + 1-layer escape ladder and a limiting mechanism of an n + 3-layer escape ladder, n is a natural number not less than 1, and the first linkage rod and the second linkage rod are fixed on the sides of movable frames corresponding to the escape ladders; the limiting mechanism comprises a movable rod arranged parallel to the fixed frame beam, an opening handle capable of enabling the movable rod to move towards one end, and a rotating arm rotating along with the movement of the movable rod; the rotating arm is provided with a clamping groove matched with the linkage rod, and the moving of the movable rod can drive the rotating arm to rotate until the notch of the clamping groove faces the unfolding direction of the escape ladder, so that the movable frame is unfolded under the action of the unfolding mechanism.
Optionally, the rotating arm is hinged to the fixed frame, one end of the rotating arm is provided with a clamping groove matched with the linkage rod, and the other end of the rotating arm is provided with a push rod which is obliquely arranged relative to the movable rod; the movable rod is provided with a first stop pin which acts with the push rod so that the push rod can rotate along with the movement of the movable rod, and the rotation of the push rod can enable the notch of the clamping groove to face the unfolding direction of the escape ladder.
Optionally, the rotor arm includes the straight pole portion with activity lever parallel arrangement, be located straight pole portion one end and be the perpendicular portion of arranging perpendicularly for it, be located the straight pole portion other end and be the push rod of slope arrangement for it, perpendicular portion one side interval is equipped with two fenders parallel with straight pole portion in order to form the draw-in groove, and is close to the length of the fender pole of straight pole portion and is shorter than another fender pole to the notch inboard that makes the draw-in groove is less than the outside.
Optionally, the opening handle comprises a straight handle part arranged parallel to the movable rod, and a connecting part and a U-shaped holding part respectively located at two ends of the straight handle part; the connecting part is obliquely arranged relative to the straight handle part; a hinge hole hinged with the fixed frame is arranged at the joint of the connecting part and the straight handle part, the other end of the connecting part acts on a second stop pin arranged on the movable rod, and the second stop pin is positioned at one side of the connecting part close to the first stop pin, so that the opening handle can push the movable rod to move along the length direction of the movable rod only in the process of rotating and opening; the limit structure is used for limiting the stroke of the second stop pin.
Optionally, the limiting structure is a limiting baffle plate arranged corresponding to the upper limit position and the lower limit position of the second stop pin.
Optionally, the movable rod is arranged in a cavity of the fixed frame beam, a strip-shaped limiting hole is formed in the position, corresponding to the second stop pin, of the upper side of the fixed frame beam, and the upper end of the second stop pin extends out of the limiting hole to form a limiting structure with the limiting hole.
Optionally, a folding fastener matched with the limiting part located on the movable frame is arranged on the movable rod to realize folding locking of the movable frame.
Optionally, the movable rod comprises a first movable rod arranged in the cavity of the fixed frame beam and a second movable rod positioned below the fixed frame beam, the first movable rod and the second movable rod are detachably connected, and the folding fastening piece is positioned on the second movable rod.
Optionally, the strutting mechanism comprises two supporting rods which are arranged in a crossed manner, two ends of each supporting rod are respectively connected with the upright post of the fixed frame and the upright post of the movable frame, and one end of each supporting rod is connected with a supporting rod which can enable the supporting rod to have a tendency of unfolding the movable frame; the opening mechanism is arranged on one side or two sides of the escape ladder.
Optionally, the limiting mechanism is a mechanical structure.
The invention has the beneficial effects that
1. The invention can trigger the up-down linkage opening mechanism by opening the handle, can simultaneously open all floors of the escape ladder at any floor, is convenient and quick to open, and improves the escape efficiency.
2. The invention can not only open all floors of the escape ladder at the same time, but also can not be damaged due to the impact force, has long service life and prolongs the service life of the escape ladder.
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 an up-down linkage opening mechanism;
FIG. 2 is a first schematic structural diagram of a limiting mechanism;
FIG. 3 is a second schematic structural view of a limiting mechanism;
FIG. 4 is a schematic view of the installation position of the up-down linkage opening mechanism;
fig. 5 is a schematic view showing the extended state of the escape ladder.
Reference numerals: the folding ladder comprises a four-layer rotating arm 1, a four-layer movable rod 2, a four-layer opening handle 3, a second linkage rod 4, a three-layer rotating arm 5, a three-layer movable rod 6, a three-layer opening handle 7, a two-layer rotating arm 8, a two-layer movable rod 9, a two-layer opening handle 10, a first linkage rod 11, a one-layer rotating arm 12, a one-layer movable rod 13, a support rod 14, a spring 15, a folding pedal 16, a lower folding ladder 17, an upper folding ladder 18, a movable frame 19, a fixed frame 20, a one-layer opening handle 21, a folding fastening piece 22, a movable rod 23, a rotating arm 24, an opening handle 25, a clamping groove 26, a first blocking pin 27, a push rod 28, a second blocking pin 29, a connecting part 30 and a holding part 31.
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 5, an up-and-down linkage opening mechanism for a straight-climbing escape ladder comprises linkage rods arranged along the height direction of a floor, wherein each linkage rod comprises a first linkage rod 11 and a second linkage rod 4, the upper end and the lower end of each first linkage rod 11 respectively correspond to a limiting mechanism of n +2 layers of escape ladders and a limiting mechanism of n layers of escape ladders, the upper end and the lower end of each second linkage rod 4 respectively correspond to a limiting mechanism of n +1 layers of escape ladders and a limiting mechanism of n +3 layers of escape ladders, n is a natural number not less than 1, and the first linkage rod 11 and the second linkage rod 4 are fixed on the outer sides of movable frames 19 corresponding to the escape ladders; the limiting mechanism comprises a movable rod 23 arranged parallel to the beam of the fixed frame 20, an opening handle 25 capable of enabling the movable rod 23 to move towards one end, and a rotating arm 24 rotating along with the movement of the movable rod 23; the rotating arm 24 is provided with a clamping groove 26 matched with the linkage rod, and the moving of the movable rod 23 can drive the rotating arm 24 to rotate until the notch of the clamping groove 26 faces the unfolding direction of the escape ladder, so that the movable frame 19 is unfolded under the action of the unfolding mechanism.
Optionally, the rotating arm 24 is hinged on the fixed frame 20, and has a slot 26 matched with the linkage rod at one end and a push rod 28 arranged obliquely relative to the movable rod 23 at the other end; the movable bar 23 is provided with a first stopper pin 27 which acts on the push bar 28 so that the push bar 28 rotates in accordance with the movement of the movable bar 23, and the rotation of the push bar 28 can orient the notch of the catching groove 26 in the extending direction of the escape ladder.
Optionally, the rotating arm 24 includes a straight rod portion disposed in parallel with the movable rod 23, a vertical portion disposed at one end of the straight rod portion and perpendicular to the straight rod portion, and a push rod 28 disposed at the other end of the straight rod portion and inclined to the vertical portion, two blocking rods disposed at an interval on one side of the vertical portion and parallel to the straight rod portion to form the slot 26, and a length of the blocking rod near the straight rod portion is shorter than that of the other blocking rod, so that an inner side of a notch of the slot 26 is lower than an outer side.
Alternatively, the opening handle 25 includes a straight shank portion disposed parallel to the movable rod 23, and a connecting portion 30 and a U-shaped grip portion 31 respectively located at both ends of the straight shank portion; the connecting part 30 is obliquely arranged relative to the straight handle part; a hinge hole hinged with the fixed frame 20 is arranged at the joint of the connecting part 30 and the straight shank part, the other end of the connecting part acts on a second stop pin 29 arranged on the movable rod 23, and the second stop pin 29 is positioned at one side of the connecting part 30 close to the first stop pin 27, so that the opening handle 25 can push the movable rod 23 to move along the length direction of the movable rod only in the process of rotating and opening; and a limit structure for limiting the stroke of the second stop pin 29.
Alternatively, the limiting structure is a limiting baffle plate arranged corresponding to the upper limit position and the lower limit position of the second stop pin 29, and the limiting baffle plate can be fixed on the cross beam of the fixed frame.
Optionally, the movable rod 23 is disposed in a cavity of the fixed frame beam, a strip-shaped limiting hole is disposed at a position on the upper side of the fixed frame beam 20 corresponding to the second stop pin 29, and the upper end of the second stop pin 29 extends out of the limiting hole to form a limiting structure with the limiting hole.
Optionally, the movable rod 23 is provided with a folding fastener 22 matching with the limiting member on the movable frame 19 to realize folding locking of the movable frame 19.
Optionally, the movable rod 23 includes a first movable rod disposed in the cavity of the beam of the fixed frame 20 and a second movable rod disposed below the beam of the fixed frame 20, the first movable rod and the second movable rod are detachably connected, and the foldable fastening member 22 is disposed on the second movable rod 23.
Optionally, the expanding mechanism includes two support rods 14 which are arranged in a cross manner and are hinged to each other, two ends of each support rod 14 are respectively connected to the upright of the fixed frame 20 and the upright of the movable frame 19, and one end of each support rod 14 is connected to a telescopic mechanism which can enable the support rod to move relative to the uprights so that the support rods 14 have a tendency of expanding the movable frame 19; the opening mechanism is arranged on one side or two sides of the escape ladder.
Optionally, the limiting mechanism is a mechanical structure.
According to the invention, the upper and lower linkage opening mechanisms are arranged on the escape ladder, and all the escape ladders can be opened in a linkage manner after one layer of the escape ladder opening mechanisms is opened, so that the opening mode is efficient and rapid, the opening time of the escape ladder is shortened, and the problems of low escape efficiency and the like when a fire disaster comes are solved. In addition, the damage caused by the impact force can be avoided, and the problem of short service life of the escape ladder is solved.
The straight climbing escape ladder has two forms, namely an opening state and a closing state. The outdoor escape ladder can be opened by opening the opening mechanism. When the escape ladder is in an open state, an outdoor stair structure is opened in a linkage manner, and people trapped in a room can escape when a fire disaster happens; when the outdoor escape ladder is closed, the outdoor escape ladder can be used as an anti-theft window, the appearance is attractive, and the outdoor escape ladder is made of aluminum alloy materials, so that the outdoor escape ladder is good in corrosion resistance and long in service life.
Examples
A vertical-climbing type escape ladder vertical linkage opening mechanism mainly comprises a four-layer rotating arm 1, a four-layer movable rod 2, a four-layer opening handle 3, a second linkage rod 4, a three-layer rotating arm 5, a three-layer movable rod 6, a three-layer opening handle 7, a two-layer rotating arm 8, a two-layer movable rod 9, a two-layer opening handle 10, a first linkage rod 11, a one-layer rotating arm 12, a one-layer movable rod 13 and a one-layer opening handle 21. The concrete structure, relative position relation and connection mode are as follows:
the four-layer rotating arm 1 is arranged on a beam of the fixed frame 20 above the four-layer movable rod 2, the four-layer opening handle 3 is hinged with the four-layer movable rod 2 through bolts, and the second linkage rod 4 is positioned in a notch of the four-layer rotating arm 1 and welded on the movable frame 19 to play a role in linkage control of the corresponding escape ladder. The opening mechanism is located on one side or two sides of the escape ladder and comprises two supporting rods 14 which are arranged in a crossed mode, one end of each supporting rod 14 is hinged to the upper end of a stand column of the movable frame 19 or the fixed frame 20, the other end of each supporting rod can move along a guide post arranged on the corresponding movable frame 19 or the fixed frame 20, a spring 15 is sleeved on each guide post, the spring 15 is located below the corresponding supporting rod 14, and the effect that the supporting rods 14 are jacked up to bounce the movable frame 19 is achieved. The folding steps 16 are connected with the movable frame 19 and the fixed frame 20 through pins, and the upper folding ladder 18 is connected with the movable frame 19 and the fixed frame 20 through pins so as to adapt to the structure of the supporting rod 14 for unfolding the movable frame 19. The lower folding ladder stand 17 is of the same construction as the upper folding ladder stand 18.
The straight-climbing escape ladder is suitable for high-rise buildings, is made of aluminum alloy materials, has excellent corrosion resistance, high bearing capacity and long service life, is folded in the ordinary day, and is used as an anti-theft window. Once a fire disaster occurs, the escape ladder can be opened in a vertically linkage manner through simple starting, a smooth descending channel is formed outside the window, and people can be guaranteed to evacuate quickly in the fire disaster.
Since the vertical-climbing type escape ladder vertical linkage opening mechanism can open all the escape ladders by opening at any layer, the opening control principle is explained by taking four-layer opening as an example in the following.
The starting control principle is as follows: when the escape ladder is used, the four-layer opening handle 3 is pulled open, the tail end of the four-layer opening handle 3 can collide against the second stop pin 29 of the four-layer movable rod 2 in the pulling process, the four-layer movable rod 2 is pushed to move towards the left side, the four-layer rotating arm 1 is caused to rotate along with the movement of the four-layer movable rod 2, the second linkage rod 4 is caused to break away from the notch of the four-layer rotating arm 1, the movable frame 19 is bounced open by the tension of the spring 15 and the supporting rod 14, in the bouncing-open process of the movable frame 19 on the layer, the limiting mechanism on the lower layer or the upper layer is rotated under the action of the linkage rod, the movable rod on the corresponding layer is driven to move, the locking device is further opened, meanwhile, the linkage rod also breaks away from the corresponding clamping groove, the escape ladder on the corresponding layer is further opened, and all the associated escape ladders can be opened.
The invention separates the linkage rod from the limiting mechanism by utilizing the up-down linkage principle, and the movable frame 19 is expanded by slipping the linkage rod from the slot opening of the limiting mechanism, thereby realizing the simultaneous opening of the escape ladders at the related layers and further realizing the opening of the whole escape equipment. The service life of the escape equipment is not influenced by the impact force, and the vertical linkage opening mechanism of the straight-climbing escape ladder does not need an external power supply and a control system, so that the opening mode is efficient and quick, the time is saved, the evacuation efficiency of people is improved, and the safety of the people on the fire scene is further ensured.
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. The utility model provides a linkage opening mechanism about straight climbing formula emergency ladder which characterized in that: the linkage rod is arranged along the height direction of a floor, the linkage rod comprises a first linkage rod and a second linkage rod, the upper end and the lower end of the first linkage rod respectively correspond to a limiting mechanism of n +2 layers of escape ladders and a limiting mechanism of n layers of escape ladders, the upper end and the lower end of the second linkage rod respectively correspond to a limiting mechanism of n +1 layers of escape ladders and a limiting mechanism of n +3 layers of escape ladders, wherein n is a natural number not less than 1, and the first linkage rod and the second linkage rod are fixed on the movable frame side corresponding to the escape ladders;
the limiting mechanism comprises a movable rod arranged parallel to the fixed frame beam, an opening handle capable of enabling the movable rod to move towards one end, and a rotating arm rotating along with the movement of the movable rod; the rotating arm is provided with a clamping groove matched with the linkage rod, and the moving of the movable rod can drive the rotating arm to rotate until the notch of the clamping groove faces the unfolding direction of the escape ladder, so that the movable frame is unfolded under the action of the unfolding mechanism.
2. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 1, wherein: the rotating arm is hinged on the fixed frame, one end of the rotating arm is provided with a clamping groove matched with the linkage rod, and the other end of the rotating arm is provided with a push rod which is obliquely arranged relative to the movable rod; the movable rod is provided with a first stop pin which acts with the push rod so that the push rod can rotate along with the movement of the movable rod, and the rotation of the push rod can enable the notch of the clamping groove to face the unfolding direction of the escape ladder.
3. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 2, characterized in that: the rotor arm includes straight pole portion with movable rod parallel arrangement, is located straight pole portion one end and is the perpendicular portion of arranging perpendicularly for it, is located the straight pole portion other end and is the push rod that the slope was arranged for it, and perpendicular portion one side interval is equipped with two fenders pole parallel with straight pole portion in order to form the draw-in groove, and is close to the length of the fender pole in straight pole portion and is shorter than another fender pole to the notch inboard that makes the draw-in groove is less than the outside.
4. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 1, wherein: the opening handle comprises a straight handle part arranged parallel to the movable rod, connecting parts respectively positioned at two ends of the straight handle part and a U-shaped holding part; the connecting part is obliquely arranged relative to the straight handle part; a hinge hole hinged with the fixed frame is arranged at the joint of the connecting part and the straight handle part, the other end of the connecting part acts on a second stop pin arranged on the movable rod, and the second stop pin is positioned at one side of the connecting part close to the first stop pin, so that the opening handle can push the movable rod to move along the length direction of the movable rod only in the process of rotating and opening; the limit structure is used for limiting the stroke of the second stop pin.
5. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 4, wherein: the limiting structure is a limiting baffle plate which is arranged corresponding to the upper limit position and the lower limit position of the second stop pin.
6. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 4, wherein: the movable rod is arranged in a cavity of the fixed frame beam, a strip-shaped limiting hole is formed in the position, corresponding to the second stop pin, of the upper side of the fixed frame beam, and the upper end of the second stop pin extends out of the limiting hole to form a limiting structure with the limiting hole.
7. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 1, wherein: the movable rod is provided with a folding fastener matched with the limiting part positioned on the movable frame so as to realize the folding locking of the movable frame.
8. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 7, wherein: the movable rod comprises a first movable rod arranged in a cavity of the fixed frame beam and a second movable rod positioned below the fixed frame beam, the first movable rod is detachably connected with the second movable rod, and the folding fastening piece is positioned on the second movable rod.
9. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 1, wherein: the strutting mechanism comprises two supporting rods which are arranged in a crossed manner, two ends of each supporting rod are respectively connected with the upright post of the fixed frame and the upright post of the movable frame, and one end of each supporting rod is connected with a supporting rod which can enable the supporting rods to have the tendency of unfolding the movable frame; the opening mechanism is arranged on one side or two sides of the escape ladder.
10. The vertical-climbing escape ladder vertical-linkage opening mechanism as claimed in claim 1, wherein: the limiting mechanism is of a mechanical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299727.0A CN114086879B (en) | 2021-11-04 | 2021-11-04 | Up-down linkage opening mechanism of direct climbing escape ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299727.0A CN114086879B (en) | 2021-11-04 | 2021-11-04 | Up-down linkage opening mechanism of direct climbing escape ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114086879A true CN114086879A (en) | 2022-02-25 |
| CN114086879B CN114086879B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111299727.0A Active CN114086879B (en) | 2021-11-04 | 2021-11-04 | Up-down linkage opening mechanism of direct climbing escape ladder |
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| Country | Link |
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| CN (1) | CN114086879B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2469798A1 (en) * | 2004-06-11 | 2005-12-11 | Stuart Doherty | Window guard with quick release latching system |
| CN102191912A (en) * | 2010-03-12 | 2011-09-21 | 朴起汉 | Fire escape staircase which is installed at the veranda of a building and provided with a security device |
| CN106894753A (en) * | 2017-03-14 | 2017-06-27 | 武汉轻工大学 | High-rise building fire ladder for escaping |
| 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 |
| CN112554757A (en) * | 2020-12-28 | 2021-03-26 | 尹梅花 | Multifunctional balcony protection window |
| CN112854997A (en) * | 2021-03-02 | 2021-05-28 | 杨其君 | Fire-fighting escape anti-theft window and fire-fighting escape device |
-
2021
- 2021-11-04 CN CN202111299727.0A patent/CN114086879B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2469798A1 (en) * | 2004-06-11 | 2005-12-11 | Stuart Doherty | Window guard with quick release latching system |
| CN102191912A (en) * | 2010-03-12 | 2011-09-21 | 朴起汉 | Fire escape staircase which is installed at the veranda of a building and provided with a security device |
| CN106894753A (en) * | 2017-03-14 | 2017-06-27 | 武汉轻工大学 | High-rise building fire ladder for escaping |
| 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 |
| CN112554757A (en) * | 2020-12-28 | 2021-03-26 | 尹梅花 | Multifunctional balcony protection window |
| CN112854997A (en) * | 2021-03-02 | 2021-05-28 | 杨其君 | Fire-fighting escape anti-theft window and fire-fighting escape device |
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| Publication number | Publication date |
|---|---|
| CN114086879B (en) | 2023-07-07 |
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