CN214158311U - Ratchet type constant-speed slow-descending escape equipment - Google Patents
Ratchet type constant-speed slow-descending escape equipment Download PDFInfo
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- CN214158311U CN214158311U CN202022532824.7U CN202022532824U CN214158311U CN 214158311 U CN214158311 U CN 214158311U CN 202022532824 U CN202022532824 U CN 202022532824U CN 214158311 U CN214158311 U CN 214158311U
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Abstract
The invention provides ratchet wheel type constant-speed slow-descending escape equipment, which comprises a shell assembly, wherein a gear ring and a wheel disc wound with an escape rope are fixed in the shell assembly; a planet wheel component meshed with the gear ring is arranged on the wheel disc, a central shaft is arranged on the wheel disc, and a central gear for driving the speed reduction piece to rotate is fixed on the central shaft; a damping component for limiting the rotation speed of the speed reduction plate is arranged in the shell component. The invention has reasonable structure design, integrated design, smaller product volume, lighter weight, lower price and reusability, and can be used for safe slow descent and escape of personnel in high-rise buildings. Because the planet wheel, the gear ring and the central gear are in meshed transmission, and the superimposed speed reduction fins and the damping component are in periodic collision speed reduction, the rotating speed of the escape rope can be reliably controlled, the stress in the rotating process is more uniform, the speed is more stable, and the safety and the reliability are high.
Description
Technical Field
The invention belongs to the technical field of escape devices, and particularly relates to ratchet wheel type constant-speed slow-descent escape equipment.
Background
Along with economic development, high-rise buildings are more and more, and how to solve the safety problem is particularly important, because the high-rise buildings are very difficult to rescue outside after a fire disaster occurs, the fire development is rapid under the influence of chimney effect and fire wind pressure, and if an escape passage is blocked by smoke, people cannot escape in time, and lives can be seriously threatened. For residential buildings, especially multi-storey residential buildings, due to the low building height, people may lose rational judgment due to panic and loss of measures during fire, and make the behaviors of building jumping and window jumping, so that casualty accidents are frequent. Therefore, it is necessary to provide a safe and reliable escape device for high-rise buildings and multi-storey residential buildings. Although a plurality of escape descent control devices appear on the market at present, most of the escape descent control devices control the speed based on the centrifugal friction principle, and the problems that the high temperature of a fire scene is difficult to resist, and the descent control device loses the descent control function due to slippage of oil and water exist. A few descent control devices adopt mechanical structures to realize speed control, but still have the problems of high cost, large volume, heavy weight and the like. Accordingly, targeted improvements are needed.
Disclosure of Invention
In view of the above, the invention provides a ratchet type constant-speed slow-descending escape device, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a ratchet wheel type constant-speed slow-descending escape device comprises a shell assembly, wherein a gear ring and a wheel disc wound with an escape rope are fixed in the shell assembly;
the wheel disc is provided with a planet wheel assembly meshed with the gear ring, a central shaft is arranged on the wheel disc, and a central gear for driving the speed reduction piece to rotate is fixed on the central shaft; a damping component for limiting the rotating speed of the speed reducing sheet is arranged in the shell component;
the damping assembly comprises a damping block which is arranged in the shell assembly through a damping fixing shaft, and two damping collision wheels are arranged on one side of the damping block facing the speed reduction fin at intervals;
the speed reduction piece comprises a plurality of convex angles, and when the central gear drives the speed reduction piece to rotate, each convex angle and a damping collision wheel in the damping assembly generate periodic collision.
Further, the shell subassembly includes preceding splint, back splint and the bounding wall between the two, is fixed in the ring gear between preceding, the back splint through the pin, installs the bearing pin at the shell subassembly top.
Furthermore, a front lining plate is arranged on the inner side of the front splint, and a rear lining plate is arranged on the inner side of the rear splint.
Furthermore, the bearing pin penetrates through the front clamping plate, the front lining plate, the rear lining plate and the rear clamping plate in sequence.
Further, the damping assemblies are provided with two groups which are respectively arranged at the upper end and the lower end of the shell assembly.
Furthermore, the lower part of the shell component is provided with a middle wheel, two sides of the middle wheel are respectively provided with a pressing wheel, rope passing gaps are respectively formed between the middle wheel and the pressing wheel on each side, and the bottom of the shell component is provided with an inlet and an outlet corresponding to each rope passing gap.
Furthermore, the pressing wheels on the two sides of the middle wheel enable the escape rope and the wheel disc to form a 270-degree wrap angle.
Furthermore, the speed reduction piece adopts an octagonal wheel speed reduction piece.
Furthermore, the speed reduction piece is formed by riveting and fixing a plurality of discs through pins.
Furthermore, a mounting hole is formed in the center of the speed reduction piece, and a tooth groove meshed with the central gear is formed in the inner wall of the mounting hole.
Compared with the prior art, the invention has the following advantages:
the invention has reasonable structure design, integrated design, smaller product volume, lighter weight, lower price and reusability, and can be used for safe slow descent and escape of personnel in high-rise buildings. Because the mutual meshing transmission between planet wheel, ring gear and sun gear, the while superposes deceleration strip and the periodic collision of damping component speed reduction, can make the rope rotational speed of fleing obtain reliable control, simultaneously, the rotation process atress is more even, and speed is more stable, and not only overall structure mechanical strength is high, and does not receive conflagration high temperature and oil water environment influence, and security and reliability are high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a perspective structural outline view of the present invention;
FIG. 2 is a cross-sectional view of the invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is an exploded view of the inventive structure;
FIG. 5 is a schematic view of the housing assembly of FIG. 4 with portions broken away;
FIG. 6 is a schematic view of a damping assembly in an embodiment of the invention;
FIG. 7 is a schematic view of the crash wheel of FIG. 6 with the dampened crash wheels removed.
Description of reference numerals:
1-a housing assembly; 2-a gear ring; 3-escape rope; 4-a wheel disc; 5-a planet wheel assembly; 6-central axis; 7-a sun gear; 8-a damping fixed shaft; 9-a damping assembly; 10-damping collision wheels; 11-a sharp corner; 12-a front splint; 13-rear splint; 14-enclosing plates; 15-a load bearing pin; 16-front lining board; 17-rear liner plate; 18-an intermediate wheel; 19-a pinch roller; 20-a back plate; 21-a front plate; 22-cushion block; 23-damping the axle of the crash wheel; 24-a safety belt; 25-a speed reduction piece; 26-a planet wheel; 27-a pin; 28-a damping mass; 29-planet wheel shaft.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A ratchet type constant speed slow descending escape device is shown in figures 1 to 5 and comprises a shell component 1, a gear ring 2 and a wheel disc 4 wound with an escape rope 3 are fixed in the shell component.
The wheel disc is provided with a planet wheel component 5 meshed with the gear ring, a central shaft 6 is arranged on the wheel disc, and a central gear 7 for driving the speed reduction piece 25 to rotate is fixed on the central shaft; for example, a mounting hole is formed at the center of the speed reduction piece, and a tooth groove engaged with the central gear is formed on the inner wall of the mounting hole. A damping component 9 for limiting the rotation speed of the speed reduction piece is arranged in the shell component; by way of example, the planetary gear assembly comprises three planetary gears which are uniformly distributed, the planetary gears are fixed on one side of the wheel disc, which faces the speed reduction piece, through a planetary gear shaft 29, and the planetary gears are meshed with the gear ring and the central gear respectively.
As shown in fig. 6 and 7, the damping assembly includes a damping block 28 mounted in the housing assembly through a damping fixing shaft 8, the damping block is provided with two damping collision wheels 10 at intervals towards one side of the reduction gear, the damping block collision wheels can rotate freely, and the damping block can swing along the damping fixing shaft within a certain range, and the swing range allows the convex angle of the reduction gear to pass through.
The speed reduction piece comprises a plurality of convex angles 11, and when the central gear drives the speed reduction piece to rotate, each convex angle and a damping collision wheel in the damping assembly generate periodic collision to reduce the rotating speed of the wheel disc. In an alternative embodiment, the speed reduction plate is an octagonal wheel speed reduction plate. In specific implementation, the speed reduction piece can be formed by riveting and fixing a plurality of discs through pins.
The escape equipment provided by the invention reduces the rotating speed of the central gear (the speed reduction piece) by changing the gear transmission ratio through the planet gear, and the damping component reduces the speed at the same time, so that the constant-speed descending under the condition of load is realized, the constant-speed descending under different building heights is realized, and the guarantee is provided for the quick and safe escape of people.
Typically, the housing assembly includes a front clamping plate 12, a rear clamping plate 13 and a shroud 14 therebetween, the shroud and the front and rear clamping plates being riveted together by rivets. The ring gear is fixed between the front and rear clamping plates by pins 27, and a bearing pin 15 is mounted on the top of the housing assembly. In an alternative embodiment, in order to improve the structural strength of the front and rear cover plates, the front cover plate 16 is provided on the inner side of the front cover plate, and the rear cover plate 17 is provided on the inner side of the rear cover plate. The bearing pin penetrates through the front clamping plate, the front lining plate, the rear lining plate and the rear clamping plate in sequence.
Generally, two groups of damping assemblies are arranged on the upper end and the lower end of the shell assembly respectively, namely, the upper side and the lower side of the speed reducer are respectively used for forming damping and speed reducing functions, so that a better speed limiting function is achieved.
In an alternative embodiment, in order to ensure the stability of the escape rope during the winding and lowering processes, the lower portion of the housing assembly is provided with an intermediate wheel 18, the two sides of the intermediate wheel are respectively provided with a pressing wheel 19, so that rope passing gaps are respectively formed between the intermediate wheel and the pressing wheel on each side, and the bottom of the housing assembly is provided with an inlet and an outlet corresponding to each rope passing gap, so that the escape rope can pass through smoothly without interference.
The escape rope and the wheel disc form a wrap angle of more than 270 degrees through the pressing wheels on the two sides of the middle wheel, and the wrap angle is 270-300 degrees generally. It should be noted that the damping fixed shaft, the wheel shaft for the intermediate wheel, and the general shaft for mounting the pinch roller are fixed at two ends of the front splint and the rear splint respectively. Because the escape rope is wound on the wheel disc for more than 270 degrees, when the escape rope drives the wheel disc to rotate, the planet wheel and the wheel disc synchronously rotate and drive the central gear to rotate, and the lower part of one end of the escape rope, which bypasses the wheel disc, is provided with the safety belt 24 for escape.
Because preceding welt, back welt can form the structure additional strengthening to preceding splint and back splint, effectively improved the holistic structural strength of shell subassembly, consequently, in the scheme that is equipped with preceding welt and back welt, damping fixed axle, installation are used for the shaft of intermediate wheel, are used for the shaft both ends of installation pinch roller also can directly be fixed on preceding welt and back welt.
In an alternative embodiment, the specific structure of the damping block may be: the self-plugging rivet comprises a back plate 20 and a front plate 21, wherein a cushion block 22 is arranged between the back plate and the front plate, and the back plate, the cushion block and the front plate are riveted and fixed through self-plugging rivets. The wheel shaft 23 of the damping collision wheel is fixed on the back plate, the area of the front plate is smaller than that of the back plate, and the front plate is guaranteed to avoid the damping collision wheel.
When the safety belt is used, the hanging piece is arranged on the bearing pin to fix the equipment (on a wall, a roof or other components), and then a user wears the safety belt. When descending, the escape rope drives the wheel disc to rotate, the wheel disc drives the three planet wheels to rotate, the planet wheels drive the central gear to rotate through being meshed with the gear ring, the central gear drives the reduction wheel piece to rotate, and the protruding angle (the protruding octagon when the octagon wheel reduction piece is adopted) periodically collides with the upper damping collision wheel and the lower damping collision wheel, so that the speed of the escape rope in the equipment is reduced, and the uniform descending can be kept.
The invention has reasonable structure design, integrated design, smaller product volume, lighter weight, lower price and reusability, and can be used for safe slow descent and escape of personnel in high-rise buildings. Because the intermeshing transmission between planet wheel, ring gear and sun gear, the while superposes deceleration strip and the periodic collision of damping subassembly speed reduction, can make the rope rotational speed of fleing obtain reliable control, simultaneously, it is more even to rotate the process atress, and speed is more stable, and not only overall structure mechanical strength is high, and does not receive conflagration high temperature and oil water environment to influence, and security and reliability are high, provide the guarantee for the timely safe fleing of personnel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a ratchet formula constant speed equipment of fleing that slowly falls which characterized in that: comprises a shell component, wherein a gear ring and a wheel disc wound with an escape rope are fixed in the shell component;
the wheel disc is provided with a planet wheel assembly meshed with the gear ring, a central shaft is arranged on the wheel disc, and a central gear for driving the speed reduction piece to rotate is fixed on the central shaft; a damping component for limiting the rotating speed of the speed reducing sheet is arranged in the shell component;
the damping assembly comprises a damping block which is arranged in the shell assembly through a damping fixing shaft, and two damping collision wheels are arranged on one side of the damping block facing the speed reduction fin at intervals;
the damping block comprises a back plate and a front plate, a cushion block is arranged between the back plate and the front plate, the back plate, the cushion block and the front plate are fixedly riveted through a self-plugging rivet, a wheel shaft of the damping collision wheel is fixed on the back plate, and the area of the front plate is smaller than that of the back plate;
the speed reduction piece comprises a plurality of convex angles, and when the central gear drives the speed reduction piece to rotate, each convex angle and a damping collision wheel in the damping assembly generate periodic collision;
the lower part of the shell component is provided with a middle wheel, two sides of the middle wheel are respectively provided with a pressing wheel, so that rope passing gaps are respectively formed between the middle wheel and the pressing wheel on each side, and the bottom of the shell component is provided with an inlet and an outlet corresponding to each rope passing gap; the escape rope and the wheel disc form a 270-degree wrap angle through the pressing wheels on the two sides of the middle wheel.
2. A ratchet type constant-speed slow-descent escape device as claimed in claim 1, wherein: the shell subassembly includes preceding splint, back splint and the bounding wall between the two, is fixed in the ring gear between preceding, back splint through the pin, installs the bearing pin at shell subassembly top.
3. A ratchet type constant-speed slow-descent escape device as claimed in claim 2, wherein: the inner side of the front splint is provided with a front lining plate, and the inner side of the rear splint is provided with a rear lining plate.
4. A ratchet type constant-speed slow-descent escape device as claimed in claim 3, wherein: the bearing pin penetrates through the front clamping plate, the front lining plate, the rear lining plate and the rear clamping plate in sequence.
5. A ratchet type constant-speed slow-descent escape device as claimed in claim 1, wherein: the damping assemblies are provided with two groups and are respectively arranged at the upper end and the lower end of the shell assembly.
6. A ratchet type constant-speed slow-descent escape device as claimed in claim 1, wherein: the speed reduction piece adopts an octagonal wheel speed reduction piece.
7. A ratchet type constant-speed slow-descent escape device as claimed in claim 1 or 6, wherein: the speed reduction piece is formed by riveting and fixing a plurality of discs through pins.
8. A ratchet type constant-speed slow-descent escape device as claimed in claim 7, wherein: the center of the speed reduction piece is provided with a mounting hole, and the inner wall of the mounting hole is provided with a tooth groove meshed with the central gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532824.7U CN214158311U (en) | 2020-11-05 | 2020-11-05 | Ratchet type constant-speed slow-descending escape equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532824.7U CN214158311U (en) | 2020-11-05 | 2020-11-05 | Ratchet type constant-speed slow-descending escape equipment |
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| CN214158311U true CN214158311U (en) | 2021-09-10 |
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| CN202022532824.7U Active CN214158311U (en) | 2020-11-05 | 2020-11-05 | Ratchet type constant-speed slow-descending escape equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893471A (en) * | 2021-11-08 | 2022-01-07 | 嘉兴学院 | High-rise emergency slow-falling escapement mechanism and slow-falling device thereof |
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2020
- 2020-11-05 CN CN202022532824.7U patent/CN214158311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893471A (en) * | 2021-11-08 | 2022-01-07 | 嘉兴学院 | High-rise emergency slow-falling escapement mechanism and slow-falling device thereof |
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